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Metribuzin and Chlorsulfuron Effect on Grain of Treated Winter Wheat (Triticum aestivum)

Published online by Cambridge University Press:  12 June 2017

Randy L. Anderson
Randy L. Anderson*
Affiliation:
Central Great Plains Res. Stn., Akron, CO 80720
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Abstract

A field experiment was conducted to determine the influence of metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one] and/or chlorsulfuron {2-chloro-N-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl)benzenesulfonamide} on germination, coleoptile growth, and mineral accumulation of seed from treated parent plants. The herbicides were applied postemergence in the spring to ‘Vona’ and ‘Centurk’ winter wheat (Triticum aestivum L.). The rate of metribuzin was 360 g ai/ha, with chlorsulfuron applied at 18, 35, or 70 g/ha. Metribuzin reduced grain yields of both varieties approximately 40%, whereas chlorsulfuron at the higher rates reduced grain yields of only Vona. Seed germination was not affected by either herbicide, but metribuzin, when applied alone, reduced coleoptile growth of Vona seed. The addition of chlorsulfuron to metribuzin eliminated this growth reduction. The mineral concentration of the seed of both varieties indicated that metribuzin and chlorsulfuron did not affect mineral translocation to the seed by the parent plant.

Keywords

Mineral accumulationgerminationcoleoptile growthantagonismBROTE
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 34 , Issue 5 , September 1986 , pp. 734 - 737
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

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