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Wheat (Triticum aestivum) Tolerance and Italian Ryegrass (Lolium multiflorum) Control with AE F130060 00 Plus AE F115008 00 Applied in Nitrogen

Published online by Cambridge University Press:  20 January 2017

H. Lane Crooks ,
Alan C. York  and
David L. Jordan
H. Lane Crooks
Affiliation:
Department of Crop Science, P.O. Box 7620, North Carolina State University, Raleigh, NC 27695-7620
Alan C. York*
Affiliation:
Department of Crop Science, P.O. Box 7620, North Carolina State University, Raleigh, NC 27695-7620
David L. Jordan
Affiliation:
Department of Crop Science, P.O. Box 7620, North Carolina State University, Raleigh, NC 27695-7620
*
Corresponding author's E-mail: alan_york@ncsu.edu
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Abstract

Soft red winter wheat tolerance to and Italian ryegrass control by a mixture of AE F130060 00 plus AE F115008 00 plus safener applied in water or urea ammonium nitrate (UAN) were evaluated in separate experiments. In the tolerance experiment, wheat responded similarly to AE F130060 00 plus AE F115008 00 at 12.5 plus 2.5 and 25 plus 5 g ai/ha, respectively, applied in water. The herbicides plus nonionic surfactant (NIS) applied in water injured weed-free, five- to seven-tiller wheat 3% or less and did not affect yield. Greater injury occurred with application in UAN, and yield was reduced 11% as result of fewer kernels per spike. NIS added to the herbicides in UAN increased weed-free wheat injury but had no effect on yield. AE F130060 00 plus AE F115008 00 controlled both diclofop-susceptible and -resistant Italian ryegrass. Greater control was obtained with application in UAN as compared with application in water, and NIS increased control. Yield of Italian ryegrass–infested wheat treated with herbicides plus NIS in UAN was similar to or greater than yield when herbicides plus NIS were applied in water.

Keywords

AEF 115008 00 (proposed name iodosulfuron-methyl-sodium), 4-iodo-2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino]sulfonyl]benzoic acid methyl esterAE F130060 00 (proposed name mesosulfuron-methyl), methyl 2-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-4-[[(methylsulfonyl)amino]methyl] benzoateItalian ryegrass, Lolium multiflorum Lam. Marshall #3 LOLMUwheat, Triticum aestivum L. ‘Coker 9704’Herbicide carrierssurfactant ratesyield componentsLOLMUGS, Feekes growth stageNIS, nonionic surfactantUAN, urea ammonium nitrateWAT, weeks after treatment
Type
Research
Information
Weed Technology , Volume 18 , Issue 1 , March 2004 , pp. 93 - 99
Copyright
Copyright © Weed Science Society of America 

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