Indian Society of Genetics & Plant Breeding

Screening of wheat (Triticum aestivum L.) genotypes under limited moisture and heat stress environments

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Moisture and high temperature stress are major constraints
in wheat
(Triticum aestivum L.) productivity. To generate
information on the effect of high temperature and moisture
stress on various traits which contribute for yield would
be helpful in developing tolerant wheat genotypes. An
experiment was conducted on a set of 27 diverse wheat
genotypes, including three released cultivars for late sown
and limited moisture conditions. The experiment was
conducted under normal sown, with limited (one irrigation)
moisture and under late sown (six irrigation) conditions.
The results revealed that days to flowering, biomass yield
and 1000-grain weight were less affected by the stress
conditions. The genotypes WR-626, WR-631, WR·642 and
PBW 373 showed better performance under both the (high
temperature & low moisture) stresses with less reduction
in grain yield. The characters HSI and OSI could be taken
as important criteria for breading wheat genotypes suitable
for stress environments.

Keywords: Wheat, drought susceptibility index, heat susceptibility index, tolerant genotype


Year: 2007
Volume: 67
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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