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Differential Bentazon Response in Cowpea (Vigna unguiculata)

Published online by Cambridge University Press:  12 June 2017

Howard F. Harrison Jr.  and
Richard L. Fery
Howard F. Harrison Jr.
Affiliation:
U. S. Dep. Agric, Agric. Res. Serv., U. S. Vegetable Lab., Charleston, SC 29414-5334
Richard L. Fery
Affiliation:
U. S. Dep. Agric, Agric. Res. Serv., U. S. Vegetable Lab., Charleston, SC 29414-5334
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Abstract

The U. S. Plant Introduction Collection of cowpea germplasm and a collection of cowpea cultivars were evaluated for bentazon tolerance in the field. Most accessions were intermediate in bentazon tolerance; however, several highly tolerant and highly susceptible accessions were identified. Tolerant and susceptible selections from the field experiment were evaluated in greenhouse experiments. The most susceptible selections were killed or severely injured by bentazon at 2 kg ae ha−1; the most tolerant selections were not severely injured by bentazon at 16 kg ha−1.

Keywords

Bentazon, 3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidecowpea, Vigna unguiculata (L.) WalpHerbicide tolerancesusceptibility

Information

Type
Notes
Information
Weed Technology , Volume 7 , Issue 3 , September 1993 , pp. 756 - 758
Copyright
Copyright © 1993 by the Weed Science Society of America 

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References

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