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Growth Analysis of Perennial Grasses in Tropical India I. Herbage Growth in Pure Grass Swards

Published online by Cambridge University Press:  03 October 2008

R. D. Singh  and
B. N. Chatterjee
R. D. Singh
Affiliation:
Ranchi Agricultural College and Research Institute, Kanke, Bihar
B. N. Chatterjee
Affiliation:
Ranchi Agricultural College and Research Institute, Kanke, Bihar
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Summary

Herbage production from twelve perennial grasses was analysed under two frequencies of defoliation. There were differences in the speed of establishment from seed, Heteropogon contortus, Pennisetum pedicellatum and P. polystachyon being most rapid. Once the grasses were established, the highest yields were obtained from Andropogon gayanus and Brachiaria brizantha and the lowest from Paspalum notatum. Yields were higher at the lower frequency of cutting. There were large differences in production throughout each year, with yields during winter and the dry season (November to April) only about one-tenth of those obtained in the rainy season. A. gayanus, B. brizantha, Chloris gayana and Dichanthium caricosum gave higher yields than other species during winter. Variations in yield between species could generally be ascribed to variations in the extension of leaf area, although some species maintained high net assimilation rates during unfavourable growth periods.

Type
Research Article
Information
Experimental Agriculture , Volume 4 , Issue 2 , April 1968 , pp. 117 - 125
Copyright
Copyright © Cambridge University Press 1968

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