Response of aryloxyphenoxypropionate-resistant grain sorghum to quizalofop at various rates and application timings

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dc.contributor.author Abit, Mary Joy M.
dc.contributor.author Al-Khatib, Kassim
dc.contributor.author Stahlman, Phillip W.
dc.contributor.author Geier, Patrick W.
dc.date.accessioned 2013-05-15T20:56:52Z
dc.date.available 2013-05-15T20:56:52Z
dc.date.issued 2013-05-15
dc.identifier.uri http://hdl.handle.net/2097/15834
dc.description Citation: Abit, M. Joy M., Kassim Al-Khatib, Phillip W. Stahlman, and Patrick W. Geier. “Response of Aryloxyphenoxypropionate-Resistant Grain Sorghum to Quizalofop at Various Rates and Application Timings.” Weed Technology 26, no. 1 (March 2012): 14–18. https://doi.org/10.1614/WT-D-11-00020.1.
dc.description.abstract Conventional grain sorghum is highly susceptible to POST grass control herbicides. Development of aryloxyphenoxypropionate-resistant grain sorghum could provide additional opportunities for POST herbicide grass control in grain sorghum. Field experiments were conducted at Hays and Manhattan, KS, to determine the effect of quizalofop rate and crop growth stage on injury and yield of aryloxyphenoxypropionate-resistant grain sorghum. Quizalofop was applied at 62, 124, 186, and 248 g ai haˉ¹ at sorghum heights of 8 to 10, 15 to 25, and 30 to 38 cm, which corresponded to early POST (EPOST), mid-POST (MPOST), and late POST (LPOST) application timings, respectively. Grain sorghum injury ranged from 0 to 68% at 1 wk after treatment (WAT); by 4 WAT, plants generally recovered from injury. The EPOST and MPOST applications caused 9 to 68% and 2 to 48% injury, respectively, whereas injury from LPOST was 0 to 16%, depending on rate. Crop injury from quizalofop was more prominent at rates higher than the proposed use rate in grain sorghum of 62 g ha-1. Grain yields of quizalofop treatments were similar with the non-treated treatments and that application of quizalofop at different timings did not reduce yield except when applied MPOST at the Manhattan site. en_US
dc.language.iso en_US en_US
dc.relation.uri https://doi.org/10.1614/WT-D-11-00020.1 en_US
dc.rights This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.uri https://rightsstatements.org/page/InC/1.0/?language=en
dc.subject Quizalofop en_US
dc.subject Sorghum en_US
dc.subject ACCase-inhibiting herbicides en_US
dc.subject Growth stages en_US
dc.subject Application timing en_US
dc.subject Herbicide rate en_US
dc.subject Crop response en_US
dc.title Response of aryloxyphenoxypropionate-resistant grain sorghum to quizalofop at various rates and application timings en_US
dc.type Text en_US
dc.date.published 2012 en_US
dc.citation.doi 10.1614/WT-D-11-00020.1 en_US
dc.citation.epage 18 en_US
dc.citation.issn 0890-037X
dc.citation.issue 1 en_US
dc.citation.jtitle Weed Technology en_US
dc.citation.spage 14 en_US
dc.citation.volume 26 en_US
dc.citation Abit, M. Joy M., Kassim Al-Khatib, Phillip W. Stahlman, and Patrick W. Geier. “Response of Aryloxyphenoxypropionate-Resistant Grain Sorghum to Quizalofop at Various Rates and Application Timings.” Weed Technology 26, no. 1 (March 2012): 14–18. https://doi.org/10.1614/WT-D-11-00020.1.
dc.contributor.authoreid stahlman en_US
dc.contributor.authoreid pgeier en_US
dc.description.version Article (author version)


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