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Evaluation of Wheat Genotypes for Drought Tolerance (Paperback)
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Evaluation of Wheat Genotypes for Drought Tolerance (Paperback)
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The present investigation was carried out with an aim to studying
some physio-morphological characters of wheat associated with yield
under different soil moisture stress. The soil moisture stress as a
whole reduced the yield and yield contributing characters of wheat.
Correlation analysis of grain yield with yield attributing
characters indicated a high positive correlation coefficient with
total dry matter, crop growth rate, leaf number/plant, harvest
index, spikelet number/spike and 1000 kernel weight. Growth
analysis showed that both crown root initiation and heading stages
were the critical and care is needed at these stages for better
crop yield. However, heading stage was more critical. Stress study
clearly showed that the varieties differed from one another in
their tolerance to stress and among the varieties studied, Gaurab
was comparatively least susceptible one while Aghrani was the
highest highest susceptible. Phenotypic regression analysis also
showed that Gaurab had unit regression slope with low stability
value for grain yield/plant, fertile tiller number and 1000 kernel
weight indicating its stability to varying soil moisture
treatments.
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