Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Bond, Jason A.

Committee Member

Golden, Bobby R.

Committee Member

Allen Jr., Thomas W.

Committee Member

Bararpour, M. T.

Date of Degree

8-9-2019

Original embargo terms

Worldwide

Document Type

Graduate Thesis - Open Access

Major

Weed Science

Degree Name

Master of Science

College

College of Agriculture and Life Sciences

Department

Department of Plant and Soil Sciences

Abstract

Quizalofop and florpyrauxifen-benzyl are both new herbicides for rice in the midsouthern U.S. Quizalofop is only effective for control of monocot weed species; therefore, mixtures of florpyrauxifen-benzyl with quizalofop could be beneficial in acetyl CoA carboxylase (ACCase)-resistant rice. Field experiments were conducted at the Delta Research and Extension Center in Stoneville, MS, in 2017 and 2018 to evaluate control of monocot and dicot weed species with sequential applications of quizalofop including auxinic herbicides in the first or second treatment. Other field experiments in 2017 and 2018 evaluated sequential applications of different rates of quizalofop with florpyrauxifen-benzyl included in treatments immediately prior to flooding. A final field experiment in 2017 and 2018 evaluated growth and yield of six ACCase-resistant rice cultivars and advanced lines following POST applications of florpyrauxifen-benzyl.

URI

https://hdl.handle.net/11668/14475

Sponsorship

Mississippi Rice Promotion Board

Comments

Provisia(TM) rice||application timing||herbicide-resistant||application rate||auxinic herbicides||sequential applications||preflood||cultivar||herbicide tolerance||differential susceptibility

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