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Retardation of hypocotyl growth by prior heat stress in seedlings of cowpea, melon and tomato

Published online by Cambridge University Press:  27 March 2009

I. C. Onwueme
I. C. Onwueme
Affiliation:
Department of Plant Science, University of Ife, Ile-Ife, Nigeria
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Summary

Seeds of cowpea, melon, and tomato were planted in moist soil and subjected to a heat stress of 45 °C for 10 h on the day of sowing (day 0), 1 day after sowing or 2 days after sowing. The heat stress subsequently resulted in retarded hypocotyl elongation for all the crops, but the greatest retardation was due to heat stress applied on day 1 for cowpea, day 2 for melon, and day 0 for tomato. The growth-retarding effect of heat stress was associated with a delay, by 1 day, of the maximum rate of elongation of the seedlings.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 83 , Issue 3 , December 1974 , pp. 409 - 413
Copyright
Copyright © Cambridge University Press 1974

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