Physiological traits and breeding for drought resistance in wheat
1998
Malik, T.A. (University of Agriculture, Faisalabad (Pakistan). Dept. of Plant Breeding and Genetics) | Aeright, D.
A series of field and pot experiments were conducted under drought stress to evaluate leaf water potential, osmotic adjustment, relative water content, excised leaf water loss, stomatal resistance and seedling survival as breeding criteria in spring wheat. Twelve genotypes (six drought resistant and six drought susceptible) were used in the study. Drought resistant genotypes had higher osmotic adjustment, stomatal resistance, relative water content and seedling survival compared to drought susceptible genotypes. Excised leaf water loss was higher in drought susceptible genotypes. The response of the genotypes for the traits at the flag leaf susceptible and 3rd leaf stage was similar, hence screening for improved drought resistance may be done at seedling stage. Leaf water potential may not be a reliable criterion to differentiate drought resistant genotypes from the susceptible ones.
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Эту запись предоставил National Agricultural Research Centre