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Wild Proso Millet (Panicum miliaceum) Interference in Dry Beans (Phaseolus vulgaris)

Published online by Cambridge University Press:  12 June 2017

Robert G. Wilson*
Affiliation:
Panhandle Res. and Ext. Ctr., Univ. Nebraska, Scottsbluff, NE 69361

Abstract

Effects of proso millet interference with irrigated dry beans were evaluated in Nebraska over a 2-yr period. Dry bean yield reduction ranged from 12 to 31% from a wild proso millet density of 10 plants m-2. As density increased, dry bean yield reduction could be predicted with a rectangular hyperbola regression model. Ten wild proso millet plants m-2 growing with dry beans produced 14 780 to 21 420 seed m-2. Dry bean yields were reduced 41 and 11% in 1990 and 1991, respectively, when wild proso millet removal was delayed 6 wk after dry bean planting. Four weeks of weed-free maintenance were sufficient to provide dry bean yields comparable to plots kept weed free all season.

Type
Weed Biology and Ecology
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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