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Response of pearl millet (Pennisetum americanum) to short-term flooding in a moderately sodic soil under field conditions

Published online by Cambridge University Press:  27 March 2009

D. P. Sharma  and
A. Swarup
D. P. Sharma
Affiliation:
Central Soil Salinity Research Institute, Karnal-132001, India
A. Swarup
Affiliation:
Central Soil Salinity Research Institute, Karnal-132001, India
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Summary

A field study in India in 1987 evaluated the effects of flooding at either tillering (25 days after sowing) or flowering (50 days after sowing) or at both on growth, yield and mineral composition of Pennisetum americanum L. Leeke in a moderately sodic soil (pH 8·5, exchangeable Na 18%).

Flooding for 1, 2, 4 or 6 days at tillering or flowering significantly reduced tillering, plant height, dry matter content, ear length and 1000-grain weight and resulted in a 6·3, 150, 21·6 or 26·6% reduction in grain yield, respectively. Flooding decreased oxygen diffusion rate, restricted root growth and decreased ion uptake, especially of N, P, K and Zn, and led to higher absorption of Na, Fe and Mn. The detrimental effects were greater when the crop was flooded at both stages.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 113 , Issue 3 , December 1989 , pp. 331 - 337
Copyright
Copyright © Cambridge University Press 1989

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