Control of Glyphosate-Resistant Marestail in Identity-Preserved or Glyphosate-Resistant and Glyphosate/Dicamba-Resistant Soybean with Preplant Herbicides  

作　　者：Nader Soltani Christy Shropshire Peter H. Sikkema Nader Soltani;Christy Shropshire;Peter H. Sikkema(University of Guelph Ridgetown Campus, Ridgetown, Ontario, Canada)

机构地区：[1]University of Guelph Ridgetown Campus, Ridgetown, Ontario, Canada

出　　处：《American Journal of Plant Sciences》2020年第6期851-860,共10页美国植物学期刊（英文）

摘　　要：Two studies, each consisting of six field experiments were conducted in growers’ fields in 2018 and 2019 to determine the optimal herbicide tankmixes, applied preplant (PP) for the control of glyphosate-resistant<b><span style="font-family:Verdana;"> (</span></b><span style="font-family:Verdana;">GR</span><b><span style="font-family:Verdana;">)</span></b><span style="font-family:Verdana;"> marestail in</span><span style="font-family:Verdana;"> 1) identity-preserved and glyphosate-resistant soybean (Study 1) and, 2)</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;"><span style="font-family:Verdana;">glyphosate/dicamba-resistant soybean</span></span><span style="font-family:Verdana;"> (Study 2). </span><span style="font-family:Verdana;">There was no significant injury in soybean with the PP herbicides evaluated in both studies. </span><span style="font-family:Verdana;">In Study 1, at 8 weeks after treatment (WAA), glyphosate + saflufenacil, glyphosate + 2,4-D ester, glyphosate + pyraflufen/2,4-D, glyphosate +, 4-D choline or glyphosate + halauxifen-methyl, applied PP, controlled GR marestail 93%, 58%, 60%, 67% and 71%, respectively</span><span style="font-family:Verdana;">.</span><span style="font-family:Verdana;"> The addition of metribuzin to </span><span style="font-family:Verdana;">the tankmixes of glyphosate + </span><span style="font-family:Verdana;">saflufenacil</span><span style="font-family:Verdana;">, 2,4-D ester and pyraflufen/2,4-D increased the control to 98%, 91% and 95%, respectively. The addition of metribuzin + chlorimuron-ethyl to 2,4-D choline/glyphosate and glyphosate + halauxifen-methyl increased the control to 94% and 93%, respectively.</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">In Study 2, a</span><span style="font-family:Verdana;">t </span><span style="font-family:Verdana;">8 WAA,</span><span style="font-family:Verdana;"> glyphosate/dicamba</span><span style="font-family:Verdana;">,</span><span style="font-family:;" "Two studies, each consisting of six field experiments were conducted in growers’ fields in 2018 and 2019 to determine the optimal herbicide tankmixes, applied preplant (PP) for the control of glyphosate-resistant<b><span style="font-family:Verdana;"> (</span></b><span style="font-family:Verdana;">GR</span><b><span style="font-family:Verdana;">)</span></b><span style="font-family:Verdana;"> marestail in</span><span style="font-family:Verdana;"> 1) identity-preserved and glyphosate-resistant soybean (Study 1) and, 2)</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;"><span style="font-family:Verdana;">glyphosate/dicamba-resistant soybean</span></span><span style="font-family:Verdana;"> (Study 2). </span><span style="font-family:Verdana;">There was no significant injury in soybean with the PP herbicides evaluated in both studies. </span><span style="font-family:Verdana;">In Study 1, at 8 weeks after treatment (WAA), glyphosate + saflufenacil, glyphosate + 2,4-D ester, glyphosate + pyraflufen/2,4-D, glyphosate +, 4-D choline or glyphosate + halauxifen-methyl, applied PP, controlled GR marestail 93%, 58%, 60%, 67% and 71%, respectively</span><span style="font-family:Verdana;">.</span><span style="font-family:Verdana;"> The addition of metribuzin to </span><span style="font-family:Verdana;">the tankmixes of glyphosate + </span><span style="font-family:Verdana;">saflufenacil</span><span style="font-family:Verdana;">, 2,4-D ester and pyraflufen/2,4-D increased the control to 98%, 91% and 95%, respectively. The addition of metribuzin + chlorimuron-ethyl to 2,4-D choline/glyphosate and glyphosate + halauxifen-methyl increased the control to 94% and 93%, respectively.</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">In Study 2, a</span><span style="font-family:Verdana;">t </span><span style="font-family:Verdana;">8 WAA,</span><span style="font-family:Verdana;"> glyphosate/dicamba</span><span style="font-family:Verdana;">,</span><span style="font-family:;" "

关 键 词：Biomass Crop Injury Density GLYPHOSATE Herbicide Tankmixture METRIBUZIN Saflufenacil Yield 

分 类 号：O17[理学—数学]