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A Laboratory Technique to Screen Seedling Emergence of Sorghum and Pearl Millet at High Soil Temperature

Published online by Cambridge University Press:  03 October 2008

P. Soman  and
J. M. Peacock
P. Soman
Affiliation:
International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Andhra Pradesh 502 324, India
J. M. Peacock
Affiliation:
International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Andhra Pradesh 502 324, India
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Summary

Apparatus was built to screen sorghum and pearl millet for seedling emergence through a hot soil surface. Seeds were sown in soil in long clay pots arranged in a steel water tank so that the top 7 cm of the pots was above the water level. The soil in the pots was heated with infra-red lamps fitted to a frame above the tank. By adjusting the height of the frame the temperature of the soil could be changed. The system allows emerging plumules to be subjected to high soil temperatures (up to 50°C) but without water stress. Both crops exhibited genotypic differences in emergence.

Type
Research Article
Information
Experimental Agriculture , Volume 21 , Issue 4 , October 1985 , pp. 335 - 341
Copyright
Copyright © Cambridge University Press 1985

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References

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