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Response of fluid-drilled ‘Grand Rapids’ lettuce seeds to high temperature and low moisture

Published online by Cambridge University Press:  27 March 2009

W. G. Pill  and
J. E. Rojas
W. G. Pill
Affiliation:
Delaware Agricultural Experiment Station, Department of Plant Science, College of Agricultural Sciences, University of Delaware, Newark, Delaware 19717–1303, U.S.A.
J. E. Rojas
Affiliation:
Delaware Agricultural Experiment Station, Department of Plant Science, College of Agricultural Sciences, University of Delaware, Newark, Delaware 19717–1303, U.S.A.
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Extract

It is estimated that only 35–50% of the potential yield of field lettuce crops is harvested (Gray, 1978c). A major contributory factor is the failure to establish full, uniform plant stands. Erratic lettuce emergence has been attributed to inadequate soil moisture, soil crusting, and high (> 25 °C) soil temperature (Hemphill, 1982).

Type
Short Notes
Information
The Journal of Agricultural Science , Volume 109 , Issue 2 , October 1987 , pp. 411 - 414
Copyright
Copyright © Cambridge University Press 1987

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References

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