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PERFORMANCE OF CANOLA (BRASSICA
NAPUS L.) UNDER DIFFERENT IRRIGATION LEVELS
MUHAMMAD TAHIR, ASGHAR ALI, MUHAMMAD ATHER NADEEM,
ASIF TANVEER AND Q.M. SABIR
Abstract:
A field experiment was carried out to
examine the effect of different irrigation levels on growth and yield of
canola in 2005-06. The experiment comprised nine irrigation treatments
viz., one irrigation at early vegetative stage (21DAS); one irrigation
at flower initiation (56 DAS); one
irrigation at seed formation (93 DAS); two irrigations, one at early
vegetative and second at mid vegetative stage (21 & 35 DAS); two
irrigations, one at early vegetative and second at flower initiation (21
& 56 DAS); two irrigations, one at flower initiation and second at
seed formation (56 & 93 DAS); three irrigations, one at early
vegetation, second at mid vegetation and third at seed formation (21, 35
& 93 DAS); three irrigations, one at early vegetation, second at
flowering and third at seed formation (21, 56 & 93 DAS); three
irrigations, one at mid vegetation, second at flowering and third at
seed formation (35, 56 & 93 DAS). The results showed that maximum
crop growth rate, net assimilation rate, number of seeds per siliqua,
1000-seed weight and seed yield were attained with three irrigations at
early vegetative, flowering and seed formation (21, 56 & 93 DAS).
The oil and protein contents of the seed were not affected significantly
by varying irrigation levels.
Department
of Agronomy,
University
of Agriculture, Faisalabad, Pakistan.
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