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Metribuzin Tolerance Within the Genus Vigna

Published online by Cambridge University Press:  12 June 2017

Howard F. Harrison Jr.
Howard F. Harrison Jr.*
Affiliation:
U.S. Veg. Lab., U.S. Dep. Agric., Agric. Res. Serv., Charleston, SC 29407
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Abstract

A simple, labor-efficient screening procedure was developed for identifying metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one] tolerant southernpea [Vigna unguiculata (L.) Walp.] germplasm in the greenhouse. Of 1241 southernpea plant introduction (PI) accessions screened, two (PI 293569 and PI 427221) tolerated metribuzin. In additional greenhouse experiments, the two selected southernpea accessions were slightly more tolerant than the susceptible cultivar ‘Lady’ or the moderately tolerant cultivar ‘Big Boy’. However, several accessions from related Vigna species tolerated 1.5 ppmw metribuzin, twice the concentration that killed the southernpea selections.

Keywords

Vigna angularisV. lancifoliaV. luteolaV. mungoV. oblongifoliaV. parvifloraV. umbellataV. unguiculata
Type
Research
Information
Weed Technology , Volume 2 , Issue 1 , January 1988 , pp. 59 - 63
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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