ESTIMATE THE EXTERNAL DEMAND ON EGYPTIAN ORANGE FOR MAJOR IMPORT MARKETS
Asmaa
Ali
Department of Agricultural Economics, Faculty of Agriculture, Ain Shams University.
author
M.
Rihan
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra 11241, Cairo, Egypt
author
Fatma
Fahmy
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra 11241, Cairo, Egypt
author
M.
Abd El-Fattah
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra 11241, Cairo, Egypt
author
text
article
2019
eng
Egyptian orange is one of the most important agricultural crops export, which can contribute to the increase of foreign exchange of agricultural exports, where the Egyptian orange is in the first place for fruit export Egyptian exports, Accordingly, the aim of the research was to identify the main import markets of the Egyptian orange crop to study the external demand of Egyptian oranges for these markets and to determine the factors affecting the Egyptian oranges in the most important import markets and to identify the most important countries competing for Egypt in the most important importing markets. A study of the geographical distribution of Egyptian orange exports revealed that the Russian Federation, the Netherlands, Saudi Arabia and the UAE are the main importing markets for Egyptian orange. Egypt's exports of orange to these markets reached 461.7 thousand tons, representing about 53.5% of the average quantity of Egyptian orange exports during the period (2013-2017), Egypt's exports of orange to these markets amounted to about 254.4 million dollars, representing about 51.6% of the average value of Egyptian orange exports during the period studied. A study of the demand for Egyptian oranges for the most important import markets showed that the price elasticity of the Dutch market was high Which means that demand for oranges in the Netherlands market is elastic Compared to the Russian market, Saudi Arabia and the United Arab Emirates, where demand for Egyptian oranges Inelastic request, Therefore, the price of export of Egyptian oranges to the Netherlands should not be maintained To maintain Egypt's market share in this market.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1263
1272
https://ajs.journals.ekb.eg/article_59130_4229a6043b3c45adf3fc796dcc66d992.pdf
dx.doi.org/10.21608/ajs.2019.59130
AN ECONOMIC STUDY OF SOME BROILER FARMS IN QALUBIA GOVERNORATE
Mahmoud
Salem
Dept of Economics, Fac. Agric., Ain Shams Univ.
author
Thanaa
Elnoby
Dept. of Econ., Fac. Agric., Ain Shams Univ
author
Eman
Kadous
Dept. of Econ., Fac. Agric., Ain Shams
author
text
article
2019
eng
The poultry industry in Egypt is one of the most important industries that contribute in providing the source of animal protein, which is characterized by high nutritional value, cheap price and high conversion coefficient of food compared to red meat. This industry is characterized by several characteristics, the most important speed of turnover of capital as well as not need a large agricultural patch, In addition to the relative increase in food conversion efficiency compared to other types of animals. The industry is also characterized by high return and low capital required to invest in this field compared to other productive projects. The problem of research is the high price of the prices of the inputs of the production of poultry and the low quality of the market, and fluctuation of market prices of the final output, which affects the revenue and thus affect the size of the economic project. Therefore, the study aimed at estimating the economic yield of the poultry farms in the fattening nurseries in Qalyubia governorate. These farms are characterized by a short cycle of the capital cycle in order to contribute to raising the level of individual income in the rural sector. It also provides job opportunities for young people. Of the animal protein, and based on published data and the use of field study for a sample of the municipality of Qalyubia, the research reached some results, including: 1- The average number of farms of broiler fattening was about 1.6 thousand farms by 6.67% of the total number of farms at the level of the province of Qalyubia. 2- The study of the most important problems and obstacles facing the poultry growers found that the problems of production and marketing were the high prices of chicks used in fattening, lack of quality chick, high feed prices, the lack of trained labor, the problem of control of traders and brokers in price, and the problem of irregular market price . 3- By dividing the sample of the study into three production capacities, it was found that the net yield of the first capacity (12.9-6 thousand birds) amounted to 308.9 thousand pounds / cycle, and net return of the second capacity (less than 6 thousand - more than 3.6 thousand birds) LE 323.2 thousand / cycle, while it amounted to about 274.1 thousand pounds / cycle for the third capacity (3.6 - 0.8 thousand birds). 4- The estimated profitability of the pound for the investor for the three capacities (first, second and third) was respectively 1.05, 1.12, 1.31 thousand pounds.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1273
1280
https://ajs.journals.ekb.eg/article_59141_fa9440f77dbd883522e8d7c415e46cbc.pdf
dx.doi.org/10.21608/ajs.2019.12064.1019
PREDICTING THE BEHAVIOR OF THE MOST IMPORTANT ECONOMIC VARIABLES FOR CATTLE AND POULTRY FEED
Mahmoud
Salem
Dept of Economics, Fac. Agric., Ain Shams Univ.
author
Thanaa
Seleem
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
Eman
Kadous
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
text
article
2019
eng
The traditional feed industry is based on concentrated raw feed materials and may be rich in energy or protein. The feed is a homogeneous mix of raw feed materials with some mineral salts and may be supplemented by some food additives such as vitamins, antibiotics, urea, antioxidants etc. In a soft or treated with steam and molasses and pressed into cubes, cylinders, granules or other forms. In view of the State's attention to livestock, in addition to increasing the demand for animal products for higher living standards and increased awareness of food, the feed industry is expected to rise in the next few years. The problem of the study is limited to the impact of the agricultural production market in Egypt on many local and international economic variables, which causes fluctuations in the supply and demand of these products in the local market and foreign markets. Egypt suffers from a deficit in its trade balance of agricultural inputs. In this deficit, as well as the decrease in the amount of concentrated fodder, mainly maize and the quantity produced from processed fodder, which also depends mainly on maize, especially poultry feed, which forms yellow maize 75% of the ingredients and therefore. The burden on the trade balance increases, especially as the dollar rises. Therefore, the study aimed to identify the economic indicators of the processed animal feed and poultry in Egypt. The study is based on the use of descriptive statistical methods (statistical measures) and quantification of averages and percentages as well as the work of the model of the variables studied and forecasting. The current model consists of four equations. The first is the formula of local production of processed feeds. Processed, the third equation is the formula of imports of processed feeds, the fourth equation is processed feed exports.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1281
1289
https://ajs.journals.ekb.eg/article_59337_874bac0674796c6d15910ece9a7b74e9.pdf
dx.doi.org/10.21608/ajs.2019.59337
CURRENT DEMAND FOR WATER RESOURCES IN EGYPTIAN AGRICULTURE
M.
Ibrahim
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
S.
Makled
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
A.
Elsabea
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
text
article
2019
eng
Water is one of the most important inputs and elements of development, and the importance of water in Egypt is increasing due to the lack of resources and increased demand in recent periods, where rain is scarce and covers most of its deserts. The River Nile is the main water supplier in the Arab Republic of Egypt, where the share of the river about 55.5 billion cubic meters per year, and the problem is limited to the study of the current and future use of water, while Egypt suffers from the constant amount of water available to cover these uses, The high rates of Egyptian population growth, with Egypt's share of water remaining constant, and hence the problem of water shortage, is a threat to the national economy in general and the agricultural sector in particular. The aim of the study is to use water for the time being and to work to increase the efficiency of water use in future years The study shows that the quantities of water used in irrigation for agricultural crops in Aswan fluctuated between the minimum and the decrease, ranging between a minimum of about 40.1 billion m3 in 2012 and a maximum of about 62.1 billion M3 in 2008 with an annual average of about 50.48 billion m3 during the same period. And the study of the equation of the general time trend for the quantities of water used for irrigating agricultural crops in Aswan and it shows that there is no mathematical picture suitable for the nature of the data and that the data revolve around the mean arithmetic.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1291
1306
https://ajs.journals.ekb.eg/article_59340_518e35ebe66b478fadf149eebdbc99d1.pdf
dx.doi.org/10.21608/ajs.2019.59340
ANALYSIS OF THE EXTERNAL DEMAND FOR EGYPTIAN ORANGE EXPORTS USING ALMOST IDEAL DEMAND SYSTEM
Amr
Ewida
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
قسم الاقتصاد الزراعي-کليه الزراعه- جامعه عين شمس - مصر
author
M.
Nasr
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
H.
Sarhan
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
text
article
2019
eng
The agricultural foreign trade sector is one of the most important sectors that have a direct impact on the economic development programs. Oranges occupy the first place among Egyptian citrus varieties, with Egyptian production of about 3.014 million tons representing about 70.4% of the total citrus production of 4.3 million tons (2012-2016). Its productive area reached 294.5 thousand feddans representing about 68% of the total area of citrus fruits, which amounted to about 433 thousand feddans during the same period. The problem of the study is the volatility of the quantity of Egyptian exports of oranges during the period of study (2000-2017), which made the Egyptian exports of oranges face great competition from many countries in foreign markets, which may lose them in their foreign markets and allow the competition to win these markets, The available statistics indicate that the average production of Egyptian oranges was about 2.6 million tons as an average for the period 2005-2017. However, the quantity of exports is only 23.5% of this production. The objective of the research is to analyze the structure of the demand for Egyptian exports of oranges by achieving two main objectives: The first aims to study the development of Egyptian exports of oranges and the main importing countries. The second deals with estimating the price and cross price elasticities through the almost ideal demand system for Egyptian orange. The research was based on the use of descriptive statistical analysis in the presentation and characterization of export prices of Egyptian orange, and the variables of quantities and prices of the most competitive countries in each of the studied markets, The econometric analysis was used to estimate the market model of the demand for Egyptian oranges in each of the markets studied using the Linear Almost Ideal Demand System (LAIDS) model. The research was based on UN.org data. Comtrade http: //, Ministry of Agriculture and Land Reclamation, Central Agency for Public Mobilization and Statistics (2005-2017), as well as some scientific references related to the subject.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1307
1323
https://ajs.journals.ekb.eg/article_59390_fe1254849de0b673303aa096c5de8328.pdf
dx.doi.org/10.21608/ajs.2019.59390
EGYPTIAN DEMAND FOR FABA BEANS FROM THE MOST IMPORTANT INTERNATIONAL IMPORT MARKETS
shimaa
attia
Department of Agricultural Economics, Faculty of Agriculture, Ain Shams University, cairo
author
S.
Makled
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
Shimaa
Fawzy
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
text
article
2019
eng
The crops of the legumes, especially the domestic beans, are considered the most important food groups due to their high nutritional value, in addition to their importance in improving soil properties. The state aims to encourage the expansion of the faba bean production to fill the food gap and also to supply hard currency. Egypt is one of the most important importing countries for beans. The legume crops are considered the most important food groups because of the high nutritional value. The bean is a strategic commodity for the Egyptian citizen. The study aims at reducing the imports of the Egyptian faba bean. Egypt's demand for faba bean, estimation of the competitive advantage of the main exporting countries of Egypt, and the comparative advantage index. The study found that the quantity of Egyptian bean imports increased by an annual rate of about 2.41 thousand tons. This increase is statistically insignificant at 0.05 level, and the value of Egypt's imports of faba bean has taken an upward trend at an annual rate of about 7 million dollar This increase is statistically insignificant at 0.05 level, and the price of Egypt's imports of faba bean has taken an downward trend at an annual rate of about 14.5 dollar/tons This increase is statistically insignificant at 0.05 level and the study of the geographical distribution of imports of Egyptian fab beans shows that the United Kingdom, Australia and France Representing 88 % Of Egypt's imports of beans. The percentage of Egypt's imports of faba bean decreased at a growth rate of 14%. The volume of exports of the United Kingdom and France decreased by 38% and 96%, respectively, while Australia increased its exports by 5% The elasticity of demand functions also showed that the elasticity of the price demand of Australia's export price indicates that the de mand is inelastic and Egypt needs this commodity from the Australian market, and the income elasticity shows that the commodity is poor by increasing income. The explanation of the elasticity of the demand for the price of France's exports shows that the demand is inelastic and Egypt needs this commodity from the French market. It is also evident from the income elasticity that the commodity is normal, i.e., the increase in income is the required quantity of the commodity, while the elasticity of the price demand of the UK export price shows that demand is not Flexible and Egypt needs this commodity from the British market, as evidenced by the income elasticity that the commodity is poor by increasing the income decreases the required quantity of the commodity. The study of forecasting Egypt's imports of Australian beans shows that the volume of imports of beans is expected to increase from about 136 thousand tons in 2018 to about 245.6 thousand tons in 2025. It is expected that the quantity of imports of British beans will increase from about 58 thousand tons 2018 to about 277.3 thousand tons in 2025. It is expected that the quantity of imports of French beans will fall from about 0.334 thousand tons in 2018 to about 45.9 thousand tons. It is also expected that the quantity of Egyptian imports of beans will increase from about 410 thousand tons in 2018 to about 500 thousand tons in 2025, is expected to decrease the amount of domestic production of beans from about 144 thousand tons in 2018 to about 16 thousand tons And it was found that the available amount of consumption is expected to decrease from about 281 thousand tons in 2018 to about 72.5 thousand tons in 2025.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1325
1337
https://ajs.journals.ekb.eg/article_59391_b9bd5161324df7e81af0db5aa447bfcf.pdf
dx.doi.org/10.21608/ajs.2019.59391
FROZEN VEGETABLE MARKET
Fatma
Saad
Department of Agricultural Economics, Faculty of Agriculture Ain Shams University, Cairo
author
M.
El-Eraqy
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
Salwa
Abdel Monem
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
text
article
2019
eng
Facing the food industry in Egypt, the challenges of external and internal negative impact on their competitiveness and access to global markets and the study showed that the number of enterprises operating in this sector amounted to about 37.7 thousand that run around 357 thousand workers. It also represents the food exports of approximately 31.7% and 14.3% of the total value of exports of industrial goods and the College Rankings 2016, the average annual value of the products of that sector, about 21.4 million pounds, accounted for about 31% of the value of industrial production for the same year. The research problem was the small size of the internal and external markets of frozen Egyptian vegetables. Despite the increasing global demand for frozen products, Egyptian exports do not increase at the expected rate. The rate of increase in global demand for frozen food products exceeds 510% annually, Compared to its Egyptian counterparts. The study aimed at studying the internal and external markets of Egyptian frozen vegetables. The study aims at identifying the economic characteristics of the local market for frozen vegetables in general, and in particular for the field sample of vegetable freezing plants and processing them in addition to the internal markets for marketing these vegetables. Prices, categories and consumer attitudes towards them. The study was based mainly on the available and available data published and unpublished by government agencies such as the Central Administration of Agricultural Economics in the Ministry of Agriculture and Land Reclamation, the General Organization for Industrialization, the Chamber of Food Industries in the Federation of Industries, the Commodity Council for Food Industries, the Holding Company for Food Industries, the Commercial Representation Authority, General for Export and Import Control, as well as foreign trade base data at the National Information Center of the Central Agency for Public Mobilization and Statistics. And the most important results as follows that the difference between the prices of the products, vegetables, frozen for different companies in Super accumulator different varieties where ranked Alabama to buy smile from the above parties between the varieties by about 71% of the total parties the company has a smile, and then are classified Mallow estimated at around 14.8 % of the total group has a company-Bessemer, as expected from the results I classified the grape of the biggest differences between varieties increased by approximately 26.7% of the total team purchase Montana, the following varieties of spinach increased by approximately 24.4 % of the total group company Montana.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1339
1350
https://ajs.journals.ekb.eg/article_59393_254e38650c8fc1e552265439c43ec787.pdf
dx.doi.org/10.21608/ajs.2019.59393
DETERMINANTS OF PRODUCTION AND EXPORT FOR SOME MEDICINAL AND AROMATIC PLANTS IN EGYPT
Naima Samir
Abd El-hamid
Department of Agricultural Economics, Faculty of Agriculture, Ain Shams University, Cairo
author
S.
Makled
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
Salwa
Abd Elmonem
Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
author
text
article
2019
eng
Medicinal and aromatic plants are considered to be non-traditional, multi-use crops, both in their direct form and in their indirect form, through the extraction and use of active substances in the pharmaceutical industry, the food industry, perfumery, cosmetics and soap, either in the form of pills, plants or medicinal and aromatic herbs. The cultivated area of medicinal and aromatic plants in Egypt amounted to about 46.2 thousand feddans with a percentage of 0.27% of the crop area of about 15.525 million feddans in the agricultural season (2011-2018). The cultivated area of the study crops was about 20.21 thousand feddans, The company has about 48.15% of the area of medicinal and aromatic plants during the period (2011-2018), and Egypt is located in the markets of medicinal and aromatic plants worldwide, with a trade volume of more than 60 billion dollars annually, which is a major exporter of 158.94 million dollars Which is equivalent to about 1127.038 million pounds in 2014 representing about 3.07%, 0.594% of the camel The value of Egyptian agricultural exports and total exports of 36.711, 189.741 billion pounds respectively in 2014, the problem of the study is that the cultivated areas of medicinal and aromatic plants are limited and fluctuating and low in some cases, where in recent years the areas of latency and rumen decreased from about 5,545,99759 years 2010, 2017, 2016 to about 5.152, 98759 acres in 2018, and although it is profitable crops for the farmer and the new land can be a good solution to compensate for the cost of reclamation, and this reflects on the domestic production of the failure to meet the needs of export and meet the needs of the company V Local of medicinal and aromatic plants. In spite of the urgent need to increase exports, the deficit in the Egyptian trade balance is about 329.085 billion pounds in 2017. The study examined the productive and economic indicators of the most important medicinal and aromatic plants in Egypt. The cultivated areas of the study crops declined. The latency decreased by 5.1% With an average area of about 3,616 feddan and an average area of about 3651 feddan, while the average area of the basil was about 10.685 thousand feddans, while the average value of cash amounted to about 29,072, 41.561 million pounds for the quail and basil respectively, The value of their exports continues to rise by 10.6%, 15.42% from the average of 3866.8 and 2553 thousand dollars respectively for the period of study, as well as the increase in quantities exported from cumin and monetary value by 11.79% from the average of 1047 tons and 16.45% The statistical estimate of the production of the most important medicinal and aromatic plant crops in the sample of the study, Cumin and Rihan, was examined to determine the economic efficiency and productivity of the agricultural resources available and used for each and their importance in Egyptian agriculture, Illustrates the high economic efficiency of the majority of the elements of production of crops, cumin, basil sample study of farmers Samalout and Beni Mazar of basil in Beni Suef governorate, low economic efficiency of the element of seeds in crop cumin, manure and municipal phosphate crop basil which requires rationalization of the use by farmers of cumin sample study. The study also included the statistical estimation of the production cost functions of the most medicinal and aromatic plants in the sample of the study. Finally, the study dealt with the quantity, value and price of Egyptian exports of basil and cumin.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1351
1369
https://ajs.journals.ekb.eg/article_59394_c993e303c7dd043c3ecc3bd325c8ff32.pdf
dx.doi.org/10.21608/ajs.2019.59394
A DEVELOPED EXPERT SYSTEM FOR CENTER PIVOT IRRIGATION SYSTEM MANAGEMENT UNDER NEWLY RECLAIMED SOILS OF EGYPT
O.
ohamed
On-Farm Irrigation Engineering Dept., Agric. Eng. Research Institute, ARC, Giza, Egypt
author
A.
El-Gindy
Agric. Engineering Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68-Hadayek Shoubra 11241, Cairo, Egypt
author
H.
Mehawed
On-Farm Irrigation Engineering Dept., Agric. Eng. Research Institute, ARC, Giza, Egypt
author
text
article
2019
eng
Accurately estimation of actual crop evapotranspiration (ETa) as a parameter of irrigation scheduling is very critical for efficient use of limited irrigation water resources. The objectives of this study were to (1) build, verify and validate an expert system for managing on-farm irrigation water of some soils under Egyptian conditions, (2) study the effect of coefficient of uniformity (CU) and distribution uniformity for center pivot irrigation system, (3) study the effect of the precise estimation of daily actual crop evapotranspiration (ETa) on maximizing yield and improved water use efficiency. A rule-based program named CPISM-ES (Center Pivot Irrigation System Management- Expert System) was codes and compiled using python3.7.2 language. The program was verified using ready-to-use software programs (cropwat-8 and climwat 2) for estimating the daily reference evapotranspiration and a spreadsheet named the (FAO56Ax8.xls) introduced by FAO-56 for estimating the irrigation water management parameters. It also was validated by carrying out a field experiment at site :-El Salhyia(11.2 m above sea level, 30,35°N,30,26°E), was obtained from several different sources. The irrigation expert system aims to provide the farmers by the irrigation expertise to determine the exact water needed at exact time according to the crop requirements and the environmental factors which effect factors. The experiment included the following factors: a) obtaining climatic data from a weather station b) estimation crop evapotranspiration) coefficient of uniformity (CU) and distribution uniformity for center pivot irrigation system. 1- The estimation of actual crop evapotranspiration (ETa) using crop coefficient. 2- The seasonal cumulative ETa estimated by single-kc approach of El Salhyia (1875 m3 f.1season-1). 3- Yield: the highest of crop potatoes for El Salhyia (16.2 t.fed-1). 4- Water use efficiency: the maximum value of water use efficiency for El Salhyia (0.75 kg m-3).
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1371
1382
https://ajs.journals.ekb.eg/article_59396_0819bffd3390eb86967afc2fe534eeab.pdf
dx.doi.org/10.21608/ajs.2019.59396
Optimization of Poly-β-Hydroxybutyrate (PHB) Production by an Egyption strain of Rhizobium fabae F44 using Response Surface Methodology
Wafaa
Radwan
Microbiology Dept., Fac. Agric., Ain Shams Univ.
author
Samah
Abu Hussein
Micro. Dept., Fac. Agric., Ain Shams Univ.
author
Mahmoud
Nassef
Soils, Water and Environment Res. Inst., Agriculture Research Center, Giza, Egypt
author
Sawky
Selim
Micro. Dept., Faculty of Agriculture, Ain Shams University
author
text
article
2019
eng
The present work is aimed to isolate, purify, identify a newly isolate Rhizobium fabae from different regions in Egypt then, produce and optimize Poly-β-Hydroxybutyrate polymer (PHB) production by the selected isolate Rhizobium fabae F44 using a statistical approach of response surface methodology (RSM). Rhizobium fabae F44 isolate was picked up from Sharkia Governorate in Egypt and then identified by the 16SrRNA gene as Rhizobium fabae. Eleven different variables which affect the production of PHB polymer were screened by Plackett–Burman statistical design approach. Maximization of PHB production was adjusted by the terms of The Face Central Composite Design (FCCD) of RSM and assessed at three coded levels (–1, 0, +1). One way Anova was used to statistically analyze all obtained results in relation to post hoc multiple comparison analysis performed by Tukey’s HSD. Appulses of nutritional and physical factors (two carbon sources, two nitrogen sources, mineral salts, pH, temperature, incubation time, inoculum size and agitation rate) were studied using Plackett-Burman design method. 58 isolates were obtained from the different 9 governorates with 100 % infection plant technique. The 16SrRNA showed a similarity of 99.56 (%) to Rhizobium fabae F44. Out of all tested significant media components, sucrose, yeast extract, agitation rate had the highest significant effects on the response as for PHB production, with confidence level > 98% and were further optimized using FCCD. Predicted Maximum PHB production was observed as (78.51%) which in near the mid-point (0) values (concentrations) of sucrose which reached (25 g/l) and yeast extract of (0.5 g/l) for 48 hrs. at 150 rpm agitation rate. The observed experimental value reached 87.5u/ml was very close result to the predicted one validating the model. So, Response Surface Methodology is an effective statistical approach which can substitute the use of one variable at a time approach due to its adequacy and efficiency to optimize PHB production by Rhizobium fabae F44.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1383
1397
https://ajs.journals.ekb.eg/article_59397_e1b8f2493708c0911327a66a924d378f.pdf
dx.doi.org/10.21608/ajs.2019.13523.1043
Preliminary study for testing the significance of butyl–iso–butyl phthalate in controlling faba bean broomrape
Hani
Saudy
Agronomy Dept., Fac. Agric., Ain Shams Univ.
author
Mohamed
Hamed
Agronomy Dept., Fac. Agric., Ain Shams Univ‎
author
Ibrahim
El–Metwally
Botany Department, National Research Centre ‎
author
Khaled
Ramadan
Department of Biochemistry, Faculty of Agriculture ,Ain Shams University , Cairo , Egypt.
author
Karam
Aisa
Agronomy Department, Faculty of Agriculture, Ain Shams University
author
text
article
2019
eng
Due to deleterious impacts of broomrapes against the host plants, its combating is essential for sustaining crop productivity. Thus, two–year field trail was conducted at El Nubaria experimental farm, National Research Centre, Egypt, on two faba bean genotypes (Misr–3 and Sakha–1) to investigate the importance of butyl–iso–butyl phthalate as an activator for broomrape germination in comparison to glyphosate and unweeded. Findings revealed that glyphosate in 2015/16 and 2016/17 seasons in addition to butyl–iso–butyl phthalate in 2016/17 season caused significant reductions in broomrape biomass and numbers of broomrape–infected faba bean plants plot−1 compared to the unweeded. Plots of Misr–3 genotype treated with butyl–iso–butyl phthalate in both season as well as plots of Misr–3 or Sakha–1 sprayed by glyphosate in the first season achieved the maximum seed yield of faba bean. Since butyl–iso–butyl phthalate exhibits suicidal germination of broomrape seeds, it can be exploited as an effective and helpful tool in integrated management programs of broomrape in faba bean fields. Due to deleterious impacts of broomrapes against the host plants, its combating is essential for sustaining crop productivity. Thus, two–year field trail was conducted on two faba bean genotypes (Misr–3 and Sakha–1) to investigate the importance of butyl–iso–butyl phthalate as an activator for broomrape germination in comparison to glyphosate and unweeded. The trail design was a strip–plot in completely randomized block design in six replications. Genotypes occupied the vertical main plots as well as broomrape control treatments distributed in horizontal ones. Results showed that broomrape biomass and numbers of broomrape–infected faba bean plants plot−1 markedly responded to weed control and genotype and their interaction in both seasons, except numbers of broomrape–infected plants of faba bean genotypes plot−1 in 2016/17 season. Also, findings revealed that glyphosate in 2015/16 and 2016/17 seasons in addition to butyl–iso–butyl phthalate in 2016/17 season caused significant reductions in broomrape biomass and numbers of broomrape–infected faba bean plants plot−1 compared to the unweeded. In plots of Misr–3 or Sakha–1, glyphosate was the potent practice for reducing broomrape biomass and numbers of broomrape–infected faba bean plants plot−1 in 2015/16 and 2016/17 seasons, with no significant differences with butyl–iso–butyl phthalate application in 2016/17 season. There were no noticeable variations between weeded practices and genotypes and their interaction on total dry weight of faba bean plants estimated at 105 DAS, in both seasons, except glyphosate x Misr–3 interaction in the first season only. Plots of Misr–3 genotype treated by butyl–iso–butyl phthalate in both season as well as plots of Misr–3 or Sakha–1 sprayed by glyphosate in the first season achieved the maximum seed yield of faba bean. Since butyl–iso–butyl phthalate causing suicidal germination of broomrapes seeds, it can be exploited as an effective and helpful tool in broomrape management programs in faba bean fields. Genotype; Orobanche spp; Parasitic weeds; Suicidal germination; Vicia faba
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1399
1404
https://ajs.journals.ekb.eg/article_59398_e7cfd9b95a9135e0dca942af82fb9277.pdf
dx.doi.org/10.21608/ajs.2019.11228.1010
ADDING PROBIOTICS TO RATIONS OF FATTENED CROSSBRED FRIESIAN CALVES AND ITS INFLUENCE ON CALVES’ PERFORMANCE
Waael
El-Desokey
Research Assistant, Climate Change and Agriculture Lab CLAC, Agriculture Research Center ARC
author
mohamed
abdraboh
Meteorology dep., CLAC, ARC,
author
Hamdy
Mossa
Animal Production, Agriculture, Ain Shams, Cairo Egypt
author
Hany
Gado
Animal Production, Agriculture, Ain Shams, Cairo Egypt
author
text
article
2019
eng
As the impact of upcoming climate change scenarios on livestock feeding security (quality, availability, and price), applying alternative feedstuffs is a must. Fattening calves considered as a most process related to traditional feeding system. In the present study we purposed new feedstuffs for fattened calves consisting citrus pulp silage, wheat germ, barley sprout and molasses. Within the above feedstuffs we using mechanical, chemical, and biological treatments. Moreover, the present study evaluates the production performance of 14 male cross Friesian calves (7 per each group) for adding 10ml/calve/day probiotic ZAD in treated group. Weight data where used to calculate Average Daily Gains ADG, nutrients digestibility, boneless meat percent, and feed conversion rate. From our results applying probiotics (ZAD) increased significantly (P<0.05) ADG in the hall fattened period by 1.011±0.107 kg/calve/day and 0.886±0.107kg/calve/day, also, increased the percent of boon less meat from 51.097±1.140 % and 44.410±1.518% in the treated control group respectively. Applying probiotic increasing significantly (P<0.05) digestibility of nutrient detergent fiber and acid detergent fiber by 42.853±7.092 and 54.010±3.774 in treated group compared with 25.180±7.902 and 37.679±3.774 respectively. Based on the results of the present study concluded that the effect of probiotic treatment on feed conversion rate of intake nutrients showing significant different (P<0.05) in Total Intake of Digestible Nutrients TDNI was higher in control group (4.579) compared with treated group (3.305). However, Dry Matter Intake DMI and Crud Protein Intake CPI tended to be higher in control group compared with treated group. In conclusion applying probiotics in agriculture byproduct silage in presence of sprout, molasses and wheat germ results in improving in nutrients digestibility, growth performance, and feed conversion rate of fattened calves. Based on our results we recommend such feeding system as a solution in calves' meat production to facing the upcoming climate change scenarios (i.e. direct and indirect effects on livestock sector.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1441
1448
https://ajs.journals.ekb.eg/article_59401_81e832ce723c8c5afe6065a4ccc49c49.pdf
dx.doi.org/10.21608/ajs.2019.12414.1024
EFFECT OF SOME THERAPY FUNCTIONAL FOODS ON BONE HEALTH IN OSTEOPOROTIC RATS
mohamed
awad
department of food science, faculty of agriculture , ain shams university
author
text
article
2019
eng
This study was conducted to demonstrate the effect of feeding on defatted soy bean and flaxseed flour as protein and phytoestrogen sources; broccoli and red cabbage as antioxidant sources; in addition to skimmed milk powder as a calcium source in prevention of bone loss and cell damage that usually accompanies aging process. Raw materials were subjected to proximate analysis and biologically evaluation on ninety six 4 month aged female albino rats. Eight rats were regarded as an initial group. Other eight rats were hold as a normal negative control group and fed on a basal diet. The remaining rats were ovariectomized and fed on low calcium diet for 8 weeks to produce osteoporosis model. Osteoporotic rats were divided into 9 groups (each of 8 rats) fed on standard diet supplemented with: I) soy bean flour, II) soy bean flour and broccoli, III) soy bean flour and red cabbage, IV) soy bean flour and mixture of broccoli and red cabbage, V) defatted flaxseed, VI) defatted flaxseed and broccoli, VII) defatted flaxseed and red cabbage, VIII) defeated flaxseed and mixture of broccoli and red cabbage. Skimmed milk powder and vitamin D were added to the diet of each tested group. One group was kept as a positive control and fed on a standard diet. The results showed a decreases in body weight, changes in relative weight of kidney and liver organs, physical properties of bone, also decreases in serum and bone minerals including; calcium, magnesium and phosphorus in osteoporotic model .A decreasing in estradiol and increasing in parathyroid hormone as a bone marker were also found. Results observed in tested groups showed that the highest recovery for the parameters were found in group IV which fed on standard diet supplemented with soy bean flour and mixture of broccoli and red cabbage followed by group VIII which fed on standard diet supplemented with defatted flaxseed and a mixture of broccoli and red cabbage. Therefore, it could be concluded that the aforementioned mixtures may be a promising sources to produce a functional food for prevention of bone loss and cell damage.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1449
1458
https://ajs.journals.ekb.eg/article_59402_228b8414c32a5da0a18e8220982c4669.pdf
dx.doi.org/10.21608/ajs.2019.11107.1009
Physico-chemical properties and antioxidant activities of extracted essential oils from irradiated rosemary and clove buds
Wafaa
Shahin
Egyptian atomic energy minister
author
Ahmed
Gibriel
Food science department faculty of agriculture ain shams university
author
Hanan
Abdo
Food science department faculty of agriculture ain shams university
author
text
article
2019
eng
Abstract Dried rosemary leaves (Rosmarinus officinalis Lamiaceae), and dried clove buds (Syzygium aromaticum) were irradiated with γ-irradiation by Cobalt-60 as an irradiation source at different doses (0, 5, 10, 15, 20, 25 and 30kGy) as an effective method for sterilization, pasteurization and food decontamination, considered as safe method , and stored for 12months at room temperature (22±3 0C). The evaluation of irradiation depended on the chemical studies and antioxidant activity of extracted essential oils. Results showed significant difference for the essential oils yield (content %) at different doses during storage time. Compounds were fractionated and identified by GC/MS for extracted essential oils from each of non – irradiated and irradiated dried rosemary leaves and dried clove buds samples, the main components of essential oil extracted from either non-irradiated or irradiated rosemary leaves were 1,8 cineole, camphor and γ-pinene 26.36, 12.63 and 16.98%, respectively, while, eugenol was the major component in clove essential oil (which extracted from non-irradiated and irradiated samples (81.69%). No differences were noticed in the % of essential oils constituents. Antioxidant activity as % of DPPH scavenging increased with the increasing of essential oils concentrations (250 up to 2500ppm). Furthermore, the effect of adding these extracted oils from non-irradiated and irradiated samples as well as their mixture (1:1) on the threshold odor scores of sunflower oil (Mean of acceptable odor levels) was observed. Rancimat test shown the high oxidative stability in sunflower oil supplemented with 0.3% clove essential oil which extracted from 15kGy irradiated sample was 11.99 hrs, its relative stability was 144.11% comparing with the oxidative stability of sunflower oil supplemented with 0.5% rosemary essential oil extracted from non-irradiated sample (9.76hrs) with 117.3% relative stability. Adding different concentrations of rosemary, clove buds essential oils which extracted from different irradiation doses samples and their mixture (1:1) caused slightly increasing in oxidative stability of sunflower oil.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1459
1473
https://ajs.journals.ekb.eg/article_59403_cdb7cba0990dcc793539d2bf4aeda211.pdf
dx.doi.org/10.21608/ajs.2019.11310.1011
ASSESSMENT OF GLYCEMIC INDEX AND CHEMICAL CHARACTERIZATION FOR FIVE EGYPTIAN DATE FRUITS VARIETY
lamia
abdelmohsen
food science,
author
text
article
2019
eng
Date palm (Phoenix dactylifera) is one of the oldest trees cultivated by human; Egypt has been ranked as the first country in the production of dates, soft, semi dry and dry date cultivars are cultivated in wide area of Egypt. Therefore, this work was carried out to determine the Glycemic Index (GI) and Glycemic Load (GL) of five Egyptian varieties of date fruit in healthy subjects. Chemical composition analysis was carried out for five types of date fruit (Partamoda, Malakabi, Saadi, Zaghluol and Samani); also, antioxidant power was determined. The study subjects were ten healthy volunteers, each subject was tested on six separate visits with 50 g of glucose and 50 g equivalent of available carbohydrates from the five date varieties. Capillary glucose was measured in the healthy subjects at 0, 30, 60 and 120 min. The GI was determined as ratios of the incremental areas under the response curves for the dates compared to glucose. Collecting data showed that Egyptian varieties of date fruit contain a good nutrients and antioxidant power. Among the five Egyptian varieties of date fruit, the chemical characteristics by moisture content in fruits was the highest in Samani date fruit and lowest in Partamoda dates; also, the five Egyptian varieties of date fruit contain available carbohydrate (7.4% - 69.2%), proteins (1.85 % - 7.0 %), total dietary fiber, TDF (11.82% - 15.63%) and Energy value (76.2 - 297.9 Kcal/100g). The antioxidant activity ranged between 52.61 and 79.12% as scavenging activity for free radicals; also, dates rich in phenols. The medium GI was recorded by Malakabi followed by Saadi and Partamoda which had high GL; while, the lowest GI was recorded for soft date fruit (Zaghluol and Samani) which had medium GL. These findings point to the potential benefits of Egyptian date fruit for healthy subjects when used in a stable healthy diet.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1475
1482
https://ajs.journals.ekb.eg/article_59404_63587962f8c7a73bd73fb79876e87fec.pdf
dx.doi.org/10.21608/ajs.2019.11885.1017
DEVELOPMENT AND EVALUATION OF NOODLES PREPARED FROM RICE AND WHEAT FLOUR BLENDS
Maghfera
abd-elfatah
Food Science and Technology Dept, Faculty of Agriculture, Ain Shams University
author
Mamdouh
El kalyoubi
Professor of Food Science,
Food Science and Technology Dept,
Faculty of Agriculture,
Ain Shams University.
author
Ihab
Ashosh
Professor of Food Science,
Food Science and Technology Dept,
Faculty of Agriculture,
Ain Shams University.
author
Mohamed
Mostafa
Professor of Food Science,
Food Science and Technology Dept,
Faculty of Agriculture,
Ain Shams University
author
text
article
2019
eng
Noodles were prepared by incorporation varying blends (0, 20, 40, 60 and 80%) of rice flour in replacement of wheat flour. Noodle samples were evaluated for their proximate composition, scavenging activity, sensory properties and cooking quality characteristics. The proximate composition of uncooked noodles varied significantly, with increasing rice flour level that replaced wheat flour , a gradual decreases in moisture , ash , crude fiber and protein contents in noodle pastes were occurred , their values ranged between 4.02-5.33% ; 1.11-5.22% , 0.65-0.82% and 8.51-12.81% ,respectively. However, an increases in fats, total carbohydrates and energy value were take place ranging between 4.62-8.91 % , 71.11-76.74% and 377.64 - 421.43 kcal/100g, respectively .The antioxidant activity ranged between 22.2% for wheat based noodle (100% wheat flour) to 36.8% for sample containing 80% rice flour as scavenging activity for free radicals. The overall acceptability of wheat-based noodles (WF: RF 100:00) were rated superior for their sensory preferable characteristics. Among the blended flour noodles, the noodles incorporated with up to 40% rice flour received the same acceptability as wheat-based noodle. The cooking quality characteristics differed significantly among the noodle samples; the cooking time ranged from 6.5 to 10.3 min, it was more in wheat-based noodles than noodles from rice flour. Cooking loss; water absorption percent; cooked weight and swelling index values ranged from 0.1 to 0.6%, 137.1 to 231.6%, 23.74 to 33.24 g/g and 3.20 to 5.38 %, respectively; which revealed that a significant hindered was occurred in the functional paste properties and cooking quality parameters with increasing the level rice flour in noodles. The study indicated that, noodles prepared from mixtures of wheat and rice flour showed that the best acceptable sensory attributes and cooking quality characteristics were observed at blending ratio 40 : 60% rice flour : wheat flour . These findings enhance the utilization of non- conventional flours like rice flour for the development of value added noodles with reduced gluten content and boost nutritional value.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1483
1489
https://ajs.journals.ekb.eg/article_59405_b8cbfbc6579d996eb6ea38fe0e9a5ef2.pdf
dx.doi.org/10.21608/ajs.2019.12566.1028
Isolation and identification of halophilic bacteria producing exopolysaccharides from whey and milk permeate
Amal
Hegazy
Food science department, faculty of agriculture, Ain shams university, Cairo, Egypt
author
Mohamed
El-Nawawy
Food science department, faculty of agriculture, Ain shams university, Cairo, Egypt
author
Ali
Ali
Food science department, faculty of agriculture, Ain shams university, Cairo, Egypt
author
Yehia
El-Samragy
Food science department, faculty of agriculture, Ain shams university, Cairo, Egypt
author
text
article
2019
eng
The aim of this research was to utilization of the salt whey and milk permeate to produce exopolysaccharides (EPSs). Where cheese whey is simultaneously an effluent with nutritional value and a strong organic and saline content. However, it is drained in the sewers, the EPSs are highly heterogeneous polymers produced by different species of bacteria and have recently been attracting considerable attention from biotechnologists because of their potential applications in many fields. Thus, we have isolated some halophilic bacteria that showed the ability to produce EPS from whey and milk permeate. A total of 46 strains of moderately halophilic bacteria were isolated from two types of samples. The first type was dairy samples (Baramily cheese whey and mish cheese), while the second type was water samples (salty lake water and its sediments) of Wadi El-Natrun Valley (lakes Hamra, UmRisha, and Baida), Beheira Governorate, Egypt. From isolated strains there are twelve strains were having the ability to produce exopolysaccharides but only seven strains can produce EPS from whey and milk permeate. The growth conditions i.e. concentrations of NaCl, pH value and different incubation temperature, of isolates were determined. The effect of these conditions on the production of EPS was investigated. The obtained results indicated that the optimum conditions for the production of EPS by these strains were 10 % NaCl, pH 7 and the optimum incubation temperature was 37°C. Three strains showed the highest production of exopolysaccharides. These strains were identified using two methods the first method was biology system and the second one was 16S rRNA sequence analysis method. It could be identified as Alteribacillus bidgolensis and Bacillus licheniformis. Alteribacillus bidgolensis (strain P4B) produced the highest amount of EPS (52 g/L) from whey followed by Bacillus licheniformis (DSM 13) (42 g/L), while the highest amount of EPS produced from milk permeate was (43 g/L) by Alteribacillus bidgolensis (strain P4B) followed by Bacillus licheniformis (DSM 13) (36 g/L).
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1491
1501
https://ajs.journals.ekb.eg/article_59406_afba7e37bae472d61b8c204b742b41e7.pdf
dx.doi.org/10.21608/ajs.2019.12628.1030
Production of low-fat white soft cheese using sodium caseinate and / or butter milk powder as a fat replacer
Rowida
Abd Elkader
Food Science, Fac. Agric., Ain Shams Univ.
author
Rezk
Awaad
Depart of Food Science, Fac. Agric., Ain Shams Univ.
author
Zakaria
Rizk Hassan
Department of Food Sci., Fac. Agric., Ain Shams Univ.
author
Wafaa
Salama
Dairy Res. Dept., Food Technology Research Institute, Agricultural Research Center,
author
text
article
2019
eng
The purpose of this study is to improve texture, flavor and overall quality of low-fat white soft cheese. Using sodium caseinate (SC) and / or butter milk powder (BMP) in different ratios. Buffalo’s milk was divided into two portions. The first portion was standardized to 3% fat and served as a control (1). The second portion was standardized to 1% fat and sub divided into five parts, the first part was served as control (2), the second part fortified with 2% SC (T1), the third part fortified with 2% BMP (T2), forth part fortified with 1% SC + 1% BMP (T3) and fifth part fortified with 0.5% SC + 1.5% BMP (T4). All cheese treatments stored in salted whey (5% NaCl) at 5±2°C up to 3 months. The results indicated that, control (2) had obviously lower moisture content than control (1). Addition of sodium caseinate and / or butter milk powder to cheese milk led to an increase in moisture content of resultant cheese compared to control (2). A slight increase was observed in total nitrogen % of low-fat all soft cheese treatments versus control (2) being more obvious in T2 and T3. Low-fat soft cheese treatments were characterized by higher soluble nitrogen % than control (2). Moreover, the results showed also that, replacing of milk fat with SC + BMP caused a decrease in hardness, adhesiveness, springiness, chewiness and gumminess in fresh cheese compared to control (2). Sensory properties of Low-fat soft cheese were highly improved by adding SC + BMP to cheese milk as a fat replacer. Low-fat soft cheese was most preferable in T3 with adding SC + BMP (1:1), those improved the compositional as well as the organoleptical properties, especially its body and texture of low fat brined soft cheese after 90 days of cold storage.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1503
1511
https://ajs.journals.ekb.eg/article_59410_e200f1011b7f854317b7d76349c10817.pdf
dx.doi.org/10.21608/ajs.2019.12720.1031
EFFECT OF GRINDING AND PARTICLE SIZE ON SOME PHYSICAL AND RHEOLOGICAL PROPERTIES OF CHITOSAN
Ibrahim
Ibrahim
Food Sci. Dept. Fac. of Agric., Ain Shams Univ. Alqaliobia, Egypt
author
Hamdy
Ebeid
Food Science Department Faculty of Agriculture Ain Shams University
Cairo, Egypt
author
Yasser
Kishk
Food Science and Nutrition Department Faculty of Science Taif University
Taif, Saudi Arabia
author
Abdel Fattah
Abdel Fattah
Food Science and Nutrition Department Faculty of Science Taif University
Taif, Saudi Arabia
author
Khaled
Mahmoud
Department of Food Science and Technology, National Research Centere, Dokki, Cairo, Egypt.
author
A.
Ibrahim
Food Sci. Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shoubra 11241, Cairo, Egypt
author
H.
Ebeid
Food Sci. Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shoubra 11241, Cairo, Egypt
author
Y.
Kishk
Food Sci. Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shoubra 11241, Cairo, Egypt
author
A.
Abdel Fattah
Food Sci. Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shoubra 11241, Cairo, Egypt
author
K.
Mahmoud
Food Technology Dept., National Research Centere, Dokki, Giza, Egypt
author
text
article
2019
eng
The present study was conducted to prepare nano-chitosan particles (CN) by ultrafine grinding from crude chitosan powder (CC) using a ball mill with 130 numbers of zirconia beads in range from 0.5 to 1.5 mm diameter (75 beads 0.5 mm diameter, 30 beads 1.0 mm diameter and 25 beads 1.5 mm diameter). In addition, physical and rheological properties of chitosan solutions were determined. The results revealed that ultrafine grinding has effectively milled the chitosan particles to nanoscale. Prepared chitosan nanoparticles were characterized by devices X-Ray Diffraction (XRD), Zetasizer particle sizes and Zeta potential of chitosan particles (after milling for 30, 60 and 90 minutes). The particle size of nano-chitosan was distributed in a range of 250-600 nm. with a polydispersity index use as an anti-oxidant and antimicrobial with reducing the amount used to deliver the desired purpose. Additional research is required to further investigate the potential value-added utilization of these chitosan derivatives in improving the quality and safety of some food products.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1513
1527
https://ajs.journals.ekb.eg/article_59413_a60f74e624530b2bb9f4b7cbc5d970cc.pdf
dx.doi.org/10.21608/ajs.2019.59413
Comparative Studies on Gene Expression of Rice and Wheat in Response to Fungal Infection
Nermin
Mohamed
Agricultural biotechnology, college of biotechnology, Misr University for Science and Technology (MUST), Giza, Egypt
author
text
article
2019
eng
Cereals are the foremost necessary foods for growing population of human. Wheat (Triticum aestivum) is the first important and strategic cereal crop for the majority of world’s populations. It is the most necessary staple food. Although rice (oryzae sativa) has the second place because of planted area but it serves as the most important food source for Asian countries. Wheat and rice production may be severely restricted by biotic and abiotic constraints. Disease is the major biotic stress in several regions.Comparative sequence analysis is a powerful tool to study homologous gene families, define conserved gene functions between orthologs, and identify lineage- and species-specific genes. Most annotations of newly sequenced genomes are based on similarity with sequences for which functional information is available. Apart from conserved sequences, inter-species differences provide important clues about evolutionary history and species-specific adaptations. In our study, two RNA-sequencing data sets of resistant variety of wheat (Triticum aestivum L.,) after infection with leaf rust fungus, Puccinia triticina and resistant variety of rice (Oryza sativa L.,) after infection with blast fungus, Magnaporthe oryzae were compared. 31768 up-regulated genes in wheat and 3902 up-regulated genes in rice were filtered according to fold change more than 3 and removing variants, 250 upregulated genes of wheat and rice were aligned and phylogenetic tree was generated. The result of phylogenetic tree showed close relationship between ten aligned gene pairs of wheat and rice. Two pairs of aligned gene pairs were selected randomly, super family of these pairs were obtained, the result showed that each aligned pair of proteins shared the same protein family and the same annotation and all pairs participate in plant defense pathways. Then, the gene expression of the two pairs were validated by Real-time PCR after infecting wheat with Puccinia triticina and rice with Magnaporthe grisea. Each aligned pair of the two pairs shared the same manner of expression with few exceptions in rice.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1529
1539
https://ajs.journals.ekb.eg/article_59414_9bb718408190b2adf764abe34cae38cc.pdf
dx.doi.org/10.21608/ajs.2019.10816.1008
Genotype × environment interaction and stability analysis for some economic characters in snap bean
Noura
Taha
Horticulture
Agriculture
Ain Shams University
author
text
article
2019
eng
Twenty-one new promising lines in addition to four standard cultivars of snap bean (Phaseolus vulgaris L.) were evaluated under eight environmental conditions (four sowing dates in two seasons of 2015/2016 and 2016/2017). A randomized complete block design (RCBD) with three replicates was used for each sowing date at Barrage Horticulture Research Station (BHRS), Qalubia Governorate, Horticulture Research Institute (HRI), Agricultural Research Center (ARC), Egypt. Data were recorded for some traits i.e., number of days to flowering, pod length, pod diameter, fiber content, total green yield and rust disease severity. The results showed that the linear response of environments was highly significant for all studied characters, indicating the differences between environmental conditions and their considerable influence on these traits. Mean squares of genotypes (G) were highly significant for all studied traits, suggesting the presence of wide range of differences between studied genotypes concerning all investigated traits. Mean squares of the other main sources of variation, i.e., years (Y) and sowing dates (D) were also highly significant for all traits except year for total green yield/feddan trait. The mean square due to environment + (Genotypes × Environment) was significant for all studied traits, indicating that there was a considerable interaction of genotypes with environmental condition in different eight environments. Significance of Genotypes × Environment (linear), reveals that genotypes differed in their considerably across different environments. The linear response of environments was highly significant for total green yield trait, indicating that genotypes differed in their regression on the environmental index. The results of stability analysis conclude that the six new lines G1, G2, G3, G7, G10 and G18, were the most stable genotypes, which gave the maximum total green yield overall the eight studied environments and were adapted to environments for total green yield. It is evident that these genotypes could be used as stress tolerant genotypes under stressed environments.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1541
1558
https://ajs.journals.ekb.eg/article_59415_027f9885ca5eb3b85782e66ec50c5a40.pdf
dx.doi.org/10.21608/ajs.2019.11880.1016
Effect of Spraying with some Antioxidants on Growth, Yield, Fruit Quality and Nutritional Status of Navel Orange Trees
Eman
Abdelmoniem
Horticulture Dept., Fac. Agric., Ain Shams Univ.
author
Said
El- Shazly
Hort. Dept., Fac. Agric., Ain Shams Univ.
author
Ahmed
Elgazzar
Hort. Dept., Fac. Agric., Ain Shams Univ.
author
Noha
Mansour
Hort. Dept., Fac. Agric., Ain Shams Univ.
author
text
article
2019
eng
This study was carried out through two consecutive seasons 2016 and 2017 to investigate the effect of spraying with some antioxidants on vegetative growth, yield, fruit quality and nutritional status of twelve years old Navel orange trees on sour orange rootstock grown in a private orange orchard in Qalubia Governorate, Egypt cultivated in a silty clay loam soil. This experiment involved three antioxidant materials named (salicylic acid, citric acid and folic acid) and each one spraying by three levels of each of with (250, 500 and 1000 ppm) from each salicylic, citric and folic acid plus control treatment so the experiment included ten treatments. Selected trees were spraying three times (at the beginning of the growth cycle in March, just after fruit setting in May and just after June drop in July) by aqueous solution of salicylic acid, citric acid and folic acid until the point of runoff. The highest values of vegetative growth were obtained by spraying 500 ppm salicylic acid, 1000 ppm citric acid and 500 ppm folic acid. Regarding to yield, results pointed out that the foliar spraying with 500 ppm salicylic acid, 500 ppm citric acid and 250 ppm folic acid gave the highest values of yield. Treatments 500 ppm salicylic acid, 250 ppm citric acid and 250 ppm folic acid gave the highest values of physical and chemical fruit properties. In respect to nutrients content, the highest values of macronutrients were obtained by spraying 250 ppm folic acid, while that spraying 1000 ppm salicylic acid and 250 ppm folic acid gave the highest values of micronutrients. Therefore, using treatments 500 ppm salicylic acid, 500 ppm citric acid and 250 ppm folic acid may be recommended from economical point of view and as good treatments for enhancing Navel orange growth, yield, fruit quality and nutritional status especially under old citrus orchards.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1559
1576
https://ajs.journals.ekb.eg/article_59416_61359d61b0bfbe29c42501c10bc7fb15.pdf
dx.doi.org/10.21608/ajs.2019.13229.1038
Influence of Different Nitrogen Sources on Growth and Pathogenic Capability of Rhizoctonia solani Causing Root Rot of Faba Bean
Maha
Mohamed
Plant Pathology Dept., Faculty of Agric., Ain Shams Univ., Cairo, Egypt.
author
text
article
2019
eng
ABSTRACT The effect of different nitrogen sources (glucosamine sulfate, ammonium sulfate, aspartic acid, phenylalanine and peptone) in comparison to sodium nitrate, the major nitrogen compound in basal agar Czapek’s synthetic medium growth were studied on the linear growth of Rhizoctonia solani and its pathogenicity on faba bean germinated seeds. Ammonium sulfate exhibited faster liner growth and showed the same effect as the basal medium with sodium nitrate while, glucosamine sulfate showed less growth rate compared with sodium nitrate. Glucosamine sulfate and ammonium sulfate showed significant reduction in number of infection cushions which led to significant decrease of disease index in vitro. Our results showed strongly significant positive correlations between disease index and both of diameters of hyphae and number of infection cushions while, very weak correlation coefficient was found between disease index and linear growth of R. solani. Under greenhouse conditions, glucosamine sulfate or peptone as a sole nitrogen sources in food requirements of Rhizoctonia solani inoculum depressed the virulence of the fungus. The effect of different amounts of glucosamine sulfate was determined on fungal growth rate, infection cushions, disease index in vitro and polyphenol oxidase activity. Increasing amount of glucosamine sulfate showed significantly reduction of growth rate in comparison to the basal medium with sodium nitrate. All seeds subjected to R. solani grown on different amount of glucosamine sulfate showed the lower number of infection cushions, disease index and polyphenol oxidase activity compared with sodium nitrate. Under greenhouse conditions, disease index showed significantly decreased effect when glucosamine sulfate used as soil applications and showed better effect on shoot weight and root weight compared with control plants treated with sodium nitrate. Our study proposes that glucosamine sulfate may acts as controlling factor of pathogenicity genes of R. solani. Key words: Rhizoctonia solani, faba bean, Vicia faba, nitrogen sources, glucosamine sulfate, pathogenicity.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1577
1590
https://ajs.journals.ekb.eg/article_59417_f619365c7caf0241b2514fe9f1b43494.pdf
dx.doi.org/10.21608/ajs.2019.5660.1003
Interaction between Biotic and Abiotic Agents to Control of Potato Bacterial Wilt Disease
Hanan
Abdrabouh
Department of Plant Diseases
author
Afaf
Zein El-abdeen
Department of Plant Disease, Fac. Agric. Ain Shams
author
Nagy
Abdel-Ghafar
Department of Plant Disease, Fac. Agric. Ain Sham Univ
author
text
article
2019
eng
Bacterial wilt disease caused by Ralstonia solanacearum (Smith) Yabuuchi, et al. (1995) is one of the most important bacterial diseases over the world. This study was planned to control the disease using interaction between biotic and abiotic agents, under greenhouse experiment. In vitro, tested bactericides (gentamycin, ceflaxcin and copper sulphate) were decreased growth of R. solanacerum compared with control treatment. Copper sulphate was the most effective compared with ceflaxcin and gentamycin, but ceflaxcin was moderately effective and gentamycin was less effective against the pathogen. Inhibition zone diameter was increased with increasing concentrations of tested bactericides. Application of different bio-agent isolates (Pseudomonas fluorescence, Bacillus subtitlis, Bacillus megaterium and Serratia mareacescne) were reduced the growth of the pathogen compared with control treatment. B. subtilis isolate was the most effective, but isolates of Ps. fluorescens and B. megaterium were moderately effective and S. marescences isolate was less effective against the pathogen. Greenhouse experiments, disease severity were decreased and potato yield were increased with interaction between bio-agents (Bacillus subtilis, and Pseudomonas fluorescence isolates) and bactericides (gentamycin and ceflaxcin), or bio-agents and resistance inducers factors (salicylic acid and jasmonic acid) or bactericides and resistance inducers factors compared with control treatment. However, interaction between bio-agents as tuber treatment and bactericides as soil drench treatment or interactions between bactericides as soil drench treatment and resistance inducers as foliar treatment were the most effective against the disease and the yield. But, interactions between bio-agents as soil drench treatment and resistance inducers as foliar treatment were moderately effective to control the disease and the yield. But, interaction between ceflaxcin as bactericide and Ps. fluorescens isolate as bio-agent or salicylic acid as resistance inducer were the most effective on disease severity and the yield compared with other treatments, but interaction between B. subtilis isolate as bio-agent and jasmonic acid as resistance inducer were less effective compared with other treatment.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1591
1604
https://ajs.journals.ekb.eg/article_59418_40b4ca2b64b4959a07f2a730f00177ea.pdf
dx.doi.org/10.21608/ajs.2019.12032.1026
POPULATION DYNAMICS OF ORIENTAL HORNET (Vespa orientalis L.) DURING ITS ACTIVITYSEASON IN THE APIARY THROUGHOUT THE DAY PERIODS
Dina
El-boulok
Plant Protection Department, Faculty of Agriculture, Ain Shams Univ.
author
text
article
2019
eng
The current experiment was carried out in the Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, Qualubia governorate, during the oriental hornet active season extended from September 1st until end of December, 2015, to estimate the daily counts of the oriental hornet (Vespa orientalis L.) as well as its population dynamics during its active season. The experimental apiary was contained twenty four honeybee colonies, each contented seven frames covered with adult bees and four frames of brood. The wasp’s traps were used for capturing the wasps during the day. The data indicated that, the total numbers of wasps caught in September were 204, 394 and 114 wasps/trap in the three periods, respectively. There were significant differences between all the tested periods where the highest population of wasps caught was during the noon period (12pm – 3pm) followed by the morning period (9am – 12pm), while the afternoon and evening period (3pm – 9am of next day) recorded the lowest population of wasps caught in the traps, the same trend was recorded in October and November months. It also summarized that, the average means of wasps captured for tested months were 8.79, 21.99, 13.42 and 1.10 wasps/trap for September, October, November and December 2015, respectively. The highest population of oriental hornet captured by the traps was recorded during October month, followed by November and September; meanwhile the population captured during December was the lowest, with significant deference between them. For daily count, the mean average numbers of wasps captured by the traps were 10.20, 17.55 and 6.22 wasps/trap for the three periods (9am – 12pm, 12pm – 3pm and 3pm – 9am of next day), respectively. The highest numbers of wasps captured by the traps were recorded during the noon period (12pm – 3pm) followed by morning period (9am – 12pm), meanwhile the afternoon and evening period (3pm – 9am of next day) recorded the lowest numbers of wasps captured by the traps, with significant deference between all the tested period. Overall the highest numbers of oriental hornet captured by wasp’s traps were recorded in October month during the noon period, 12pm – 3pm and averaged (33.15 wasps/trap), followed by November month during the same period 12pm – 3pm (20.50 wasps/trap).
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1605
1609
https://ajs.journals.ekb.eg/article_59419_10750aaddbc8e55572775f25a697e685.pdf
dx.doi.org/10.21608/ajs.2019.6393.1004
Assessment of house sparrows passer domesticus damage to single and double winter cultivations under field conditions
Norhan
Yacoub
Plant Protection Dept., Fac. Agric., Ain Shams
author
Ahmed
Abdelmegeed
Plant Protection Dept., Fac. Agric., Ain Shams Univ.
author
Abdallah
Shehata Kassab
Plant Protection Dept., Fac. Agric., Ain Shams
author
Ola
Abdelbar
Botany Dept., Fac. Agric., Ain Shams Univ.
author
text
article
2019
eng
The ultimate goal of this study is to find out the most suitable combinations of adjacent crops that reduce house sparrows damage. The experiments were established using single and double combinations of four wintery crops. Namely, soft wheat, hard wheat, sunflower, and barley. The double cultivations were designed by growing varying crops nearby a fixed one crop as follows 1- (soft wheat alone), (soft wheat- near sunflower), ( soft wheat near – barley), and (soft wheat near – hard wheat) 2- (barley alone),(barley- near soft wheat), (barley near - hard wheat), and (barely- near sunflower) 3-(hard wheat alone),( hard wheat- near barley), (hard wheat near – sunflower), and ( hard wheat near – soft wheat). The experimental results revealed the following; the damage percentage of house sparrows to soft wheat was 25.9 %, but when grown nearby sunflower, barley, and hard wheat the soft wheat damage reached 5.9 %, 25.9 %, and 33.3 %, respectively. In single cultivation of barley, house sparrows damage was 8.2 %, but when grown nearby soft wheat, hard wheat and sunflower, the barley damage reached 13.5 %, 1.7 % and 1.2 %, respectively. Single cultivation of hard wheat house sparrows damage was 0.0 %, while when grown adjacent to barley, sunflower, and soft wheat, the hard wheat damage reached 0.0 %,0.0 % 3.8 %, respectively. In single cultivation of sunflower, house sparrows damage was 20.2 %, while when grown nearby, barley, soft wheat , and hard wheat, the sunflower damage reached 9.5 %, 10.2 % and 36.3 %, respectively. Results obtaine from this study revealed the following: 1- sunflower could be grown nearby barley and / or soft wheat, but away from hard wheat; 2- barley could be grown nearby sunflower and /or soft wheat, but away from hard wheat; 3- soft wheat could be grown nearby sunflower, but away from hard wheat; 4- hard wheat could be grown nearby barley or sunflower, but away from soft wheat. These concomitant cultivations can be successfully practiced be small growers to protect their main crops from house sparrows attack naturally and effectively without using any pest control compounds and without any extra costs as well.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1611
1618
https://ajs.journals.ekb.eg/article_59420_09ebc5050672483269843c1cf7c9c3f5.pdf
dx.doi.org/10.21608/ajs.2019.13688.1045
Assessment of hematological, biochemical and Oxidative Stress parameters on Agricultural Pesticides Application Workers in Egypt
Aly
Mahmoud Abdul_Aal
Plant Protection, Faculty of Agriculture, Ain Shams University
author
mohamed
elzemaity
Plant Protection, Faculty of Agriculture, Ain Shams University
author
Kadry
Mahmoud
Plant Protection Dept., Fac. Agric., Ain Shams Univ.
author
maher
hammad
Plant Protection, Faculty of Agriculture, Ain Shams University
author
text
article
2019
eng
Abstract: The present study was carried out from November (2015) - October (2017) to determine the toxicological effects of pesticides exposure on agricultural application workers. Blood samples of the investigated workers were collected from Giza, Qalyubiyah and El-Buhayrah Governorates, Egypt. Thirty male individuals represented pesticide application workers were involved from the three governorates. Also, 25 male individuals (aged 18-55 years) were selected randomly from Cairo Governorate to represent the unexposed (control) group. Ten ml of blood sample per individual was collected and serological analysis for hematological (RBCs, TLC, Hb, PCV, MCV, MCH, MCHC), biochemical (ALT, AST, total protein, urea, creatinine and uric acid) and oxidative stress (GSH.R, MDA and AChE) parameters were carried out. Results: About 53% of workers involved was with an average level of education, between 18 and 35 years of age (57%), working in their field for 6 to 10 years (40%), about eight hours a day for six days a week on average (67%). Hb, MCH, MCHC, ALT, AST, AlP, TP, urea, creatinine and MDA were increased significantly by 5.58, 9.23, 3.75, 55.49, 42.44, 30.07, 6.83, 49.33, 25.48, and 133.02% respectively. While the levels of Alb, GSH.R and AChE activity were significantly decreased by 14.51, 8.33 and 21.04% respectively. a significant positive correlation between exposure duration and ALT, AST, creatinine, urea and MDA. While, there were significant negative correlations between exposure duration and total protein, alkaline phosphatase, AChE Activity, GSH.R, RBCs, Hb, PCV, MCV and MCH. Conclusions: Increasing of pesticide application workers vital parameters gives an indication of the occurrence of various health consequences due to chronic exposure to pesticides. These results can be explained by the fact that the negligence of workers in following occupational safety and health measures from wearing protective tasks, not smoking, drinking and eating during the application of pesticides, resulting from the low awareness of workers about the risks of the materials dealt with and the decrease in their educational and cultural level increases the chances of exposure to the pesticide. On the health of the worker.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1619
1625
https://ajs.journals.ekb.eg/article_59421_65b1ef4404811d4da4f584c02f23b9a4.pdf
dx.doi.org/10.21608/ajs.2019.14002.1050
Effect of vitamin E-selenium supplementation on some semen quality traits of Muscovy drakes.
Safaa
Mostafa
Dep. poultry production Faculty of Agriculture Ain Shamse university, Animal and Poultry physiology production Dep. , Desert Research center, Ministry of Agriculture and Land reclamation ,Cairo , Egypte
author
Ibrahim
Elsyed
Dept. Poultry Production, Fac. Agric., Ain SHams Univ.
author
Ayman
Hassan
Dep.poultry production ,faculty of agriculture, ain shams uni..cairo, Eyg.
author
Amal
Hassan
, Department of Animal and Poultry Physiology, Desert Research Center, Ministry of Agriculture and land reclamation, Cairo, Egypt
author
text
article
2019
eng
A total of 12, 36-week-old of Muscovy drakes were divided randomly into three equal groups (4 individuals each) and subjected to supplementation of VE-Se in combine form in drinking water. The first group was served as control group (C), while the second and third groups (T1 and T2) were supplemented with 1.0g/l and 1.5g/l of VE-Se in drinking water, respectively. The study was performed at poultry research station which belongs to department of poultry production, faculty of agricultural, Ain Shams University and lasted 30-dayes period during summer season. Semen quality traits in terms of ejaculate volume (ml), spermatozoa concentration (×109), sperm motility (%), dead and live (%), PH value and abnormal sperms (%) were determined. Sperm reserves in ducts, seminiferous tubules diameter (STD) and relative spermatogenic activity were also studied. The obtained results indicated that addition of vitamin E-Se improved ejaculate volume, sperm concentration and motility score, while reduced the percentage of abnormalities and dead sperms. Results showed that semen ejaculate volume was significantly increased (P<0.05) with increasing the level of VE-Se supplementation in drinking water. Spermatozoa concentration, progressive motility (%), and packed sperm volume were increased significantly with VE-Se treatment. The percentages of dead and abnormal spermatozoa were significantly decreased (P<0.01) in VE-Se treated compared with the control drakes. Concerning with the effect of two levels (T1 and T2) of VE-Se supplementation in drinking water of Muscovy drakes on the morphometric traits of testis, the obtained results showed that highly significant effects of antioxidant (VE-Se) supplementation on the morphometric of seminiferous tubules (p < 0.05) and the higher values of sperm reserves and spermatogenic activity percentage in both T1 (4.4/ml×109 and 82.8%) and T2 (4.5/ml×109 and 83.0%) compared with control group (3.2/ml×109 and 61.3%). We conclude that VE-Se supplementation could lead to greater economic benefits through increased reproductive efficiency within the ducks production industry.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1627
1636
https://ajs.journals.ekb.eg/article_59422_f49d9851161bd8198b72dba1c8cd9ae3.pdf
dx.doi.org/10.21608/ajs.2019.12254.1022
EFFECT OF BIOCHAR ON K AND P RELEASE FROM K-FELDSPAR & ROCK PHOSPHATE AND ITS IMPACT ON SOME GROWTH PARAMETER OF MAIZE PLANT
Manal
El mahdy
Ain shams
author
farida
rabea
ain shams
author
ahmed
elaraby
ain shams
author
fekry
ghazal
soil water and enviroment
author
text
article
2019
eng
Pot experiments were carried out using sand (collected from Ismailia ARS), in the greenhouse to study the effect of biochar application, on K and P release from their natural bearing minerals i.e.,K- feldspar and rock phosphate and\or bentonite on some growth of maize plants parameters, their P and k uptake and the soil available P and K. sixty three pots ever filled with sand(10 kg each biochar was added to all pots expect control at rates 0,1.5 , 3 ton per fed. The studied mineral are K feldspar and rock phosphate as source of K and P respectively. Bentonite was also studied because it is the most common mineral used for reclamation of sandy soil .Each mineral was added at rate of 0,1.5, 3 ton / fed the pots are as follow : biochar alone , biochar + K feldspar and biochar +bentonite and biochar and rock phosphate . maize was planted as the common way in which maize seed 6 grains for each pot inoculated with P and K solubilizing bacteria were planted . the usual N fertilizer (NH4 )2SO4 200kg /fed and irrigated as needed . Maize grow parameter i.e plant height and dry weight of maize plant were measured after 2 months of plantation . K and P as well as their uptake were measure. Results revealed that, the use of biochar at 3 tons fed-1 in combination with 3 tons of any of feldspar, bentonite or rock phosphate enhanced significantly growth parameters of maize plants compared to the control treatments .The highest values plant length and dry matter were were 89.00 cm, 11.4 g pot-1 against 36.6 cm and 2.8 g pot-1 for the control treatments., same treatments increased significantly P and K uptake of maize plants and the soil available p and K compared to the control treatments. The highest significant values in P uptake were 22.5, 18.3 & 16.7 mg plant-1 for the treatments (3 tons fed-1)of biochar with either 3ton rock phosphate ,3ton bentonite or 3 ton K-feldspar .while K uptake were 63.9, 61.8 & 60.1 mg plant -1 for biochar ( 3 tons fed-1 )with bentonite (3 tons fed-1 ), feldspar (3 tons fed-1 ) and bentonite (1.5 tons fed-1 ). Regarding available P the highest obtained values were 49.3 mg Kg -1 for 3 ton biochar + 3ton rock phosphate , 24.1 mg Kg -1 for 3 ton biochar + 1.5 ton bentonite and 24.0 mg/ kg-1 for 3 ton biochar + 1.5 ton K- feldspar. Increase either K- feldspar or bentonite to 3 ton had negative effect on available p .
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1637
1645
https://ajs.journals.ekb.eg/article_59423_bcefc736373df09de6dff4a4cab8f62d.pdf
dx.doi.org/10.21608/ajs.2019.10326.1006
RESPONSE OF SOYBEAN GROWTH TO NANO-MINERAL FERTILIZERS UNDER TWO IRRIGATION INTERVALS
hossam
mohamed
agronomy, agriculture, ain shams, cairo, egypt
author
Nemat
Nour El-Din
Agronomy Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68-Hadayek Shoubra 11241,
Cairo, Egypt
author
R.
Abd Rabou
Agronomy Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68-Hadayek Shoubra 11241,
Cairo, Egypt
author
M.
Abd El-Hady
Agronomy Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68-Hadayek Shoubra 11241,
Cairo, Egypt
author
text
article
2019
eng
During summer seasons of 2015 and 2017, a field experiment was conducted at the Research and Experimental Station (30°19′ N, 31°16′ E), Faculty of Agriculture, Ain Shams University at Shalakan, Kalubia Governorate, Egypt, to investi-gate the effects of combinations between hydroxyl apatite nanoparticles (0, 3, and 6 kg/fad) and cal-cium carbonate nanoparticles (0, 500g/fad) as nano-fertilizers under irrigaton intervals, (irrigation every 2 or 3 weeks whereas irrigation every 2 weeks as a recommended practice) on growth of soybean plants. Irrigation intervals had statistically significant effect on plant height (cm), number of branches per plant, number of leaves per plant, leaf area index, number of pods per plant, number of root nodules per plant, root dry weight per plant, stem dry weight per plant, leaves dry weight per plant and pods dry weight per plant. These results were fairly true in the two studied seasons 2015, 2017 and combined result. plant height, numbers of branches per plant, numbers of leaves per plant, leaf area index, number of nodules per plant and number of pods per plant of soybean plants which treated with 500 g/fed surpassed untreated plants in the two studied seasons 2015, 2017 and com-bined. Soybean plants treated with 6 kg hydroxyl apatite nanoparticles per feddan out-numbered other plants in its numbers of leaves per plant, leaf area index, number of root nodules per plant and number of pods per plant in the two growing sea-sons 2015, 2017 and combined data. Results showed that normal irrigation x 500g/fed calcium carbonate nanoparticles x 6kg/fed hydroxyl apatite nanoparticles was the effective combination for producing the highest values of plant height (cm), number of branches per plant, number of leaves per plant, leaf area index, number of pods per plant, number of root nodules per plant, root dry weight per plant (g), stem dry weight per plant (g), leaves dry weight per plant (g) and pods dry weight per plant (g). There weren’t significant results be-tween plants treated with nano-mineral fertilizers under irrigation every 3 week and plants untreated but irrigated every 2 week in all growth traits, which reflect appositive result of this chemical substance in mitigation harmful effect of water shortage in season 2015, 2017 and combined data.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1405
1422
https://ajs.journals.ekb.eg/article_60236_f09161fc1d7341512df41a86a389ab8d.pdf
dx.doi.org/10.21608/ajs.2019.60236
PERFORMANCE AND COMBINING ABILITY FOR STRAW YIELD AND RELATED CHARACTERS IN A DIALLEL CROSS OF FLAX (Linum usitatissmum, L.) UNDER DIFFERENT SOWING DATES
Amany
Sayed
Agronomy Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68-Hadayek Shoubra 11241, Cairo, Egypt
author
A.
El-Marakby
Agronomy Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68-Hadayek Shoubra 11241, Cairo, Egypt
author
Afaf
Tolba
Agronomy Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68-Hadayek Shoubra 11241, Cairo, Egypt
author
Sabah
Abo El-Komsan
Fiber Crops Res. Dept., Field Crops Res. Inst., Agric. Res. Center, P.O. Box 12619, Giza, Egypt
author
text
article
2019
eng
Thirty six entries of flax (Linum usitatissmum, L.) involving eight parental genotypes and their twenty eight hybrids were evaluated for straw yield and its related traits in the F1 during (2015/2016) and F2 populations during (2016/2017) under early (F2D1) and late (F2D2) sowing dates (two environments) in the Agricultural Research Station, Faculty of Agriculture, Ain Shams Univ., Shalakan, Kalubia Governorate. Mean squares due to genotypes, parents and crosses were highly significant for straw yield, plant height, technical stem length, fiber yield/plant, fiber percentage, fiber length and fiber fineness in the F1 and F2 generations (at early and late sowing dates), indicating that parental genotypes as well as their F1 and F2 generations exhibited reasonable degree of variability for all studied traits. Highly significant variations mean performance were found for parental genotypes and hybrids for straw yield/plant and its related traits in the F1, F2D1and F2D2, indicating presence of wide genetic variability among studied genotypes. The highest mean values were recorded under all studied environments, for straw yield/plant, fiber yield/plant and fiber fineness were found by S. 402/1 genotype, while Sakha 5 gave the highest mean values for plant height, technical stem length and fiber length. General and specific combining ability mean squares were highly significant for all studied traits in F1, F2D1 and F2D2 with the exception of a few cases, indicating the importance of both additive and non-additive gene effects in the expression of
straw yield and its components. The additive effects were more important than non-additive effects under all studied environments for straw yield/plant (except at F2D2), plant height (except at F1), fiber percentage and fineness. On the other hand, the non- additive effects were more effective than additive effects for technical stem length, fiber yield/plant and fiber length. Results showed that the parents; Giza 11and Giza 12 for straw yield/plant, Sakha 5 for plant height and fiber length, Sakha 6 for fiber yield/plant, Jowhar for fiber percentage and S. 402/1, Sakha 2, Giza 12 and Sakha 5 for fiber fineness, these parents appeared to be the best general combiners for these traits. Some of the crosses exhibited highly significant and positive SCA effects included high x high and high x low general combiner parents, suggesting that the breeding procedure which utilize both additive and non-additive genetic variances would be more useful for improvement of straw yield and its components of flax.
Arab Universities Journal of Agricultural Sciences
Ain Shams University, Faculty of Agriculture
1110-2675
27
v.
2
no.
2019
1423
1440
https://ajs.journals.ekb.eg/article_132831_3fc56d36fbf0ead9a0094e945e75dd72.pdf
dx.doi.org/10.21608/ajs.2019.132831