IMPROVEMENT OF CANOLA SEED YIELD AND QUALITY USING SULPHUR AND IRRIGATION INTERVALS UNDER DIFFERENT IRRIGATION WATER SALINITY LEVELS

Document Type : Original Article

Authors

1 Arid Land Agriculture Department, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdul-Aziz University, Jeddah, Saudi Arabia

2 1- Arid Land Agriculture Department, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdul-Aziz University, Jeddah, Saudi Arabia

Abstract

This investigation was conducted at Hada Elsham
Experimental Research Station, King Abdul-
Aziz University during 2007/2008 and 2008/2009
seasons, to study the effects of two irrigation water
salinity levels (1200 mg/L and 10000 mg/L), three
irrigation water intervals (3, 6 and 9 days) and
three sulphur fertilizer rates (0.0, 4.0 and 6.0 t/ha)
on seed yield, yield components and seed quality
of canola, Pactole cv. The obtained results showed
that seed yield kg/ha was significantly increased
under the 1200mg/L irrigation water and 6t/ha of
sulphur more than the seed yield/ha under the effect
of 1200 mg/L irrigation water with 4 t/ha sulphur
or 10,000 mg/L irrigation water with 6t/ha sulphur
with no significant differences between the
two later treatments. Irrigation every 3 days significantly
dominated over the irrigation every 6 or 9
days on seed yield and yield components. Irrigation
with 10.000 mg/L salinity water significantly
decreased No. of branches /plant, No. of fruit/plant
and seed weight/ plant. Besides, Protein content of
the seed as well as oil content increased as water
salinity increased in both seasons. As sulphur
fertilizer rate increased seed yield, yield components
protein and oil contents of seed significantly
increased, in the two studied seasons.

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