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Evaluation of polyethylene glycol test of measuring cell membrane stability as a drought tolerance test in wheat

Published online by Cambridge University Press:  27 March 2009

G. S. Premachandra  and
T. Shimada
G. S. Premachandra
Affiliation:
Faculty of Applied Biological Science, Hiroshima University, Fulcuyama, Japan 720
T. Shimada
Affiliation:
Department of Grassland Science, Obihiro University, Obihiro, Japan 080
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Summary

Effectiveness of the polyethylene glycol (PEG) test for measuring cell membrane stability (CMS) to select drought-tolerant genotypes in wheat was investigated. PEG test was compared with two other tests. Genetic variability of CMS was also investigated.

Drought was induced artificially in pot-grown plants and in excised leaves, and percentage injury in leaf tissues by drought stress as measured by CMS was compared with that by PEG test. Percentage injury in leaf tissues of pot-grown plants was not correlated significantly with that by PEG test. However, percentage injury in excised leaves was well correlated with that in PEG test. The results suggest that the PEG test has merit in measuring drought tolerance in wheat. Frequency distribution of CMS in winter wheat lines was closely related to the characteristic pattern of quantitative inheritance and therefore CMS of wheat seems to be controlled by polygene action.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 110 , Issue 3 , June 1988 , pp. 429 - 433
Copyright
Copyright © Cambridge University Press 1988

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