Indian Society of Genetics & Plant Breeding

Genetic improvement for deficit irrigation in bread wheat (Triticum aestivum L.)

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A study was conducted for four years in the central and
peninsular India to examine the route to yield under deficit
irrigation in bread wheat and devise suitable selection
criteria for variety development. Yield components and
genotypes were compared at two irrigation levels (zero
and one) in the first two years whereas trials were
conducted in the following two years to realize the yield
potential and genotype specificity under supplementary
irrigation. Majority of the yield governing traits responded
to the supplementary irrigation but the magnitude of
realized advantage varied vividly in the associated traits.
In yield determinants; biomass, stem elongation rate, spike
weight and a disincentive to plant height was common in
both treatments. Delayed heading in zero irrigation and
longer duration but quick grain ripening for one-irrigation
were additional attributes of selection. Proper site
selection and screening of the germplasm was found
crucial to raise prospects of high genetic yield potential
under deficit irrigation.

Keywords: Deficit irrigation, limited irrigation, moisture tolerance, yield parameters, selection criteria, Indian wheat


Year: 2008
Volume: 68
Issue: 4
Article DOI: N/A
Print ISSN: 0019-5200
Online ISSN: 0975-6906


P. C. Mishra info_circle
S. C. Misra info_circle
B. S. Jadon info_circle
P. N. Rasal info_circle

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