COMPARATIVE PERFORMANCE OF GRAM VARIETIES TO IRRIGATION APPLIED AT DIFFERENT CRITICAL GROWTH STAGES
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Date
1992
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Mahatma Phule Krishi Vidyapeeth, Rahuri.
Abstract
The field investigation to study the performance
of Gram (PG-5 and PG-12) under irrigation regimes during
rabi season was conducted at Mahatma Phule Krishi
Vidyapeeth, Rahuri (Maharashtra), India, during 1991-92c
The experiment was laid in split plot design with
four replications. There were six main plot treatment
comprising six irrigation treatments (unirrigated control,
one irrigation at flower initiation, one irrigation at
50% flowering, one irrigation at pod development, two
irrigations at branching + pod development, two irrigations
at 50% flowering + pod development) and sub plot treatments
were two varieties (PG-5 and PG-12). The soils of
experimental field was vertisols, low in nitrogen,
phosphrous and high in available potassium and was slightly alkaline in reaction.
The plant growth characters such as plant height,
plant spread/ number of branches (primary and secondary)
and total dry matter per plant were influenced significantly
due to irrigation treatments. The yield contributing
characters such as, number of pods, weight of pods, number
of grains, weight of grains per plant and thousand grain
weight were influenced significantly due to irrigation
treatments. All the characters were at higher magnitude
with two irrigation applied at flower initiation + pod
development stage and was followed by two irrigation
applied at 50 % flowering + pod development stage. The
grain yield was maximum with two irrigations at flowering
+ pod development stage. Amoungs the treatments with one
irrigation the grain yield was heigher when one irrigation
was applied at flower initiation stage. The grain yield
obtained with unirrigated control was minimum. The harvest
index was not influenced significantly due to irrigation •?
treatments.
The plant growth characters such as plant height,
primary branches, total dry matter per plant were highter
in variety PG-5 and spread of plant, secondary branches
per plant were, higher in variety PG-12. The yield
contributing characters such as number of pods, weight of
pods, number of grains, weight of grains per plant were
significantly higher in wariefcy PG-12 than PG-5 and 1000
grain weight was significantly higher in variety PG-5. The grain yield obtained with variety PG-5 and PG-12 were
15.43 and 16.69 q/ha, respectively. The response to
consumptive use of water was quadratic.
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