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Effects of Four Herbicides on Four Early Maturing Soybean (Glycine max) Cultivars

Published online by Cambridge University Press:  12 June 2017

Theodore C. Helms
Affiliation:
Crop Weed Sci. Dep., N.D. State Univ., Fargo, ND 58105
Mark A. Halvorson
Affiliation:
Crop Weed Sci. Dep., N.D. State Univ., Fargo, ND 58105

Abstract

Tolerance of two metribuzin-tolerant and two metribuzin-sensitive early maturing soybean cultivars to two rates of acifluorfen, imazethapyr, metribuzin, and thifensulfuron was evaluated under weed-free conditions. Acifluorfen at 1120 g ai ha-1 reduced plant height by 3 cm and thifensulfuron at 18 and 35 g ai ha-1 delayed physiological maturity by 3 d. No herbicide treatment reduced soybean yield when compared with a weed-free check. Soybean yield of the two metribuzin-tolerant and the two metribuzin-sensitive cultivars did not change as metribuzin rate was increased from zero to 280 to 560 g ai ha-1.

Type
Research
Copyright
Copyright © 1991 Weed Science Society of America 

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References

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