Response of Asiatic dayflower (Commelina communis L.) to glyphosate and alternatives in soybean

dc.contributor.advisor Micheal D. K. Owen
dc.contributor.author Ulloa Cortázar, Santiago
dc.contributor.department Agronomy
dc.date 2018-08-23T06:03:01.000
dc.date.accessioned 2020-06-30T07:39:36Z
dc.date.available 2020-06-30T07:39:36Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2007
dc.date.issued 2007-01-01
dc.description.abstract <p>Greenhouse experiments were conducted to evaluate Asiatic dayflower ( Commelina communis L.) tolerance to glyphosate. Glyphosate rates and growth stages of Asiatic dayflower were evaluated. Shikimate accumulation in Asiatic dayflower, glyphosate resistant (GR) and non-GR maize and soybean cultivars was estimated. Field research was conducted to evaluate herbicides for Asiatic dayflower control. Pre-emergent and post-emergent herbicides were applied. Under greenhouse conditions, a single application of glyphosate (0.84 kg ae ha-1) did not affect the growth of or shikimate accumulation in Asiatic dayflower. At an early growth stage (2 leaves), 3.36 kg ae ha -1 glyphosate provided 28% control. Susceptible maize and soybean and also Asiatic dayflower accumulated shikimate after glyphosate application. However, only Asiatic dayflower plants survived. In field experiments, metribuzin and KIH-485 provided ≥ 80% and 73% control of Asiatic dayflower respectively. Early POST applications of cloransulam-methyl and lactofen provided 80 and 67% control of Asiatic dayflower respectively.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/14811/
dc.identifier.articleid 15810
dc.identifier.contextkey 7006856
dc.identifier.doi https://doi.org/10.31274/rtd-180813-15960
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/14811
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/68379
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/14811/1443124.PDF|||Fri Jan 14 20:27:06 UTC 2022
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.keywords Agronomy;Crop production and physiology (Weed science);Weed science;
dc.title Response of Asiatic dayflower (Commelina communis L.) to glyphosate and alternatives in soybean
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
thesis.degree.level thesis
thesis.degree.name Master of Science
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