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Assessment of Bentazon Tolerance in Pepper (Capsicum sp.)

Published online by Cambridge University Press:  12 June 2017

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

Preliminary evaluation of 11 pepper genotypes indicated a high degree of variability in bentazon tolerance. ‘Bohemian Chile’ and ‘Santanka’ hot pepper tolerated bentazon similarly in subsequent greenhouse and field experiments. Yields or shoot fresh weights of these two cultivars were not reduced by up to 9.0 kg ai/ha bentazon in the field. ‘Keystone Resistant Giant’ sweet pepper was more susceptible to bentazon compared to the tolerant cultivars, but it was more tolerant than the highly susceptible cultivar, ‘Sweet Banana’. An F1 hybrid of Keystone Resistant Giant and Santanka tolerated bentazon better than Keystone Resistant Giant but slightly less than Santanka. Thus, bentazon tolerance in this genotype is genetically transferrable, and increasing bentazon tolerance through conventional plant breeding techniques may be possible.

Keywords

Bentazon, 3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidepepper, Capsicum annum L., C. frutescens L., and C. chinense L.
Type
Research
Information
Weed Technology , Volume 3 , Issue 2 , June 1989 , pp. 307 - 312
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

Literature Cited

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