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Effects of Soil Moisture Stress on Two Varieties of Upland Cotton in Israel IV. Effects of Periods of Stress Occurrence, Correlations and Regressions

Published online by Cambridge University Press:  03 October 2008

A. Marani
A. Marani
Affiliation:
Department of Field and Vegetable Crops, Faculty of Agriculture of The Hebrew University of Jerusalem Rehovot, Israel
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Summary

Effects of moisture stress during different stages of cotton development were evaluated by using correlation and regression methods on data of six irrigation experiments from three different climatic regions. Significant negative correlations were found between the number of days in which soil moisture was below a threshold level, and several plant traits. Flower number was usually affected adversely by stress at the beginning of flowering; boll number, boll retention, boll weight, lint yield, lint length and seed index by stress at the end of flowering; earliness and lint fineness by stress during early boll development. Lint index, per cent and strength were affected by stress at different periods and effects of stress on lint yield were correlated with its effects on boll number, boll weight, lint length and early maturity.

Type
Research Article
Information
Experimental Agriculture , Volume 9 , Issue 2 , April 1973 , pp. 121 - 128
Copyright
Copyright © Cambridge University Press 1973

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References

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