Authors:
N. Jain Indian Agricultural Research Institute Division of Genetics New Delhi 110012 India

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G.P. Singh Indian Agricultural Research Institute Division of Genetics New Delhi 110012 India

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R. Yadav Indian Agricultural Research Institute Division of Genetics New Delhi 110012 India

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R. Pandey Indian Agricultural Research Institute Division of Plant Physiology New Delhi 110012 India

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P. Ramya Indian Agricultural Research Institute Division of Genetics New Delhi 110012 India

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M.B. Shine Indian Agricultural Research Institute Division of Genetics New Delhi 110012 India

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V.C. Pandey Indian Agricultural Research Institute Division of Genetics New Delhi 110012 India

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N. Rai Indian Agricultural Research Institute Division of Genetics New Delhi 110012 India

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J. Jha Indian Agricultural Research Institute Division of Genetics New Delhi 110012 India

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K.V. Prabhu Indian Agricultural Research Institute Division of Genetics New Delhi 110012 India

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Under limiting water resources, root system response of genotypes to soil-water conditions with enhanced shoot biomass holds the key for development of improved genotypes. Based on the hypothesis of root biomass contribution to higher yields under limiting conditions which might be attributed to the root system plasticity of genotypes, a set of thirty-four genotypes were evaluated under three moisture regimes in a pot experiment for root system traits. Total root dry matter had a positive association with total shoot dry matter (0.35). The identified genotypes showed greater yields and higher stress tolerance index (STI) in an independent field experiment. Root dry matter positively correlated with stress tolerance index on grain yields in both the years. The total variation was partitioned into principal components and GGE biplots were studied to identify the best performing genotypes under the three environments for root dry biomass and related traits. HD2932 appeared to be the winner genotype under different regimes. These results might be helpful in identifying donors for moisture stress tolerance that can be utilized in wheat breeding programmes for accelerated development of varieties with improved root systems.

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Cereal Research Communications
Language English
Size A4
Year of
Foundation
1973
Volumes
per Year
1
Issues
per Year
4
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0133-3720 (Print)
ISSN 1788-9170 (Online)