Indian Society of Genetics & Plant Breeding

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Multi-environmental evaluation of wheat genotypes for drought tolerance

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Drought is a major abiotic stress affecting wheat production
worldwide. Present study was conducted to identify drought
tolerant wheat lines. In this study, field screening was done
in multi-environment for four years followed by validation
at molecular level for identifying stable drought tolerant
wheat genotypes. In field screening, based on eleven
quantitative traits including drought susceptibility index
(DSI) under irrigated and non-irrigated conditions in two
successive years, 44 wheat genotypes were selected from
an initial set of 177 genotypes. These selected lines were
further screened for two more years against drought stress.
Stability analysis and AMMI biplot was also performed to
analyze the stable performance of genotypes across the
environments and years. The studied genotypes were also
evaluated for the presence of six drought-linked molecular
markers. Based on drought susceptibility index, other
physiological parameters and molecular analysis, the
genotypes namely, ET127225, ET127230, EC531185,
ET127236, ET127267 and ET127269 were found to be
potential genetic resources for drought tolerance, which
can be further used in wheat improvement programme.
 

Keywords: Drought stress, drought susceptibility index (DSI), molecular markers, multienvironmental trials, wheat genotypes

Info

Year: 2018
Volume: 78
Issue: 1
Article DOI: 10.5958/0975-6906.2018.00004.4
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

info_circle
Jyoti Kumari info_circle
Ruchi Bansal info_circle
B. R. Kuri info_circle
D. Upadhyay info_circle
Ashutosh Srivastava info_circle
Bhakti Rana info_circle
Manoj K. Yadav info_circle
R. S. Sengar info_circle
Amit K. Singh info_circle
Rakesh Singh info_circle

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