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Wild Proso Millet (Panicum miliaceum) Interference in Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Robert G. Wilson  and
Philip Westra
Robert G. Wilson
Affiliation:
Univ. Nebraska, Scottsbluff, NE 69361
Philip Westra
Affiliation:
Colorado State Univ., Fort Collins, CO 80523
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Abstract

Effects of wild proso millet interference with irrigated corn were evaluated in Nebraska and Colorado over a 2-yr period. Corn yield reductions ranged from 13 to 22% from a wild proso millet density of 10 plants m–2. As density increased, corn yield reduction could be predicted with a rectangular hyperbola regression model. Ten wild proso millet plants m–2 growing with corn produced 4200 to 6200 seed m–2. Corn yields were reduced 10% at one location if wild proso millet removal was delayed 2 weeks after corn planting. If removal was further delayed until 6 weeks after corn planting, corn yield reductions at the two locations ranged from 16 to 28%.

Keywords

Wild proso millet, Panicum miliaceum L. # PANMIcorn, Zea mays LCompetitioninterferencetime of removaltridiphane + cyanazinePANMI
Type
Weed Biology and Ecology
Information
Weed Science , Volume 39 , Issue 2 , June 1991 , pp. 217 - 220
Copyright
Copyright © 1991 Weed Science Society of America 

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References

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