Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/989153
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dc.contributor.authorSILVA, A. F. dapt_BR
dc.contributor.authorGALON, L.pt_BR
dc.contributor.authorCONCENCO, G.pt_BR
dc.contributor.authorASPIAZÚ, I.pt_BR
dc.contributor.authorFERREIRA, E. A.pt_BR
dc.contributor.authorTIRONI, S. P.pt_BR
dc.contributor.authorSILVA, A. A. dapt_BR
dc.date.accessioned2017-06-06T23:53:09Z-
dc.date.available2017-06-06T23:53:09Z-
dc.date.created2014-06-27pt_BR
dc.date.issued2014pt_BR
dc.identifier.citationAustralian Journal of Crop Science, v. 8, n. 6, p. 965-976, 2014.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/989153pt_BR
dc.descriptionWeed management in Brazilian sugarcane fields is accomplished mainly with herbicides. These chemical products may negatively impact sugarcane growth and development. Therefore, we aimed this study to evaluate the influence of the selective herbicides ametryn, trifloxysulfurom-sodium and its commercially available mixture on the growth of sugarcane cultivars. The experiment was conducted under greenhouse condition in a completely randomized design, using a 3×3×4 factorial scheme with four replications. Factor A comprised sugarcane cultivars (SP80-1816, RB855113 and RB867515); factor B herbicides ametryn (Metrimex®), trifloxysulfuron-sodium (Envoke®) and its mixture (Krismat®), and factor C the doses (0.0, 0.5x, 1.0x and 3.0x the label dose), where 1.0x dose= 2,000gha-1 for ametryn; 22.5gha-1 for trifloxysulfuron-sodium and 1, 463+37.0gha-1 for the mixture. Crop toxicity was assessed 28 days after herbicide application and traits such as plant height, number of leaves per plant, stalk diameter, leaf area index, specific leaf area and crop growth rate were assessed 80 days after crop emergence. The results showed that trifloxysulfuron-sodium causes lower impact on all variables; therefore, being more selective to all cultivars. The label dose (1.0x), equivalent to 2,000 gha-1 of ametryn and 22.5 gha-1 of trifloxysulfuron- sodium is considered as a threshold between deficient weed control (in lower doses) and excessive crop toxicity (in higher doses). RB867515 and RB855113, respectively, were the most and least tolerant cultivars to both herbicides. In highly infested planting fields, farmers usually prefer to grow the most tolerant sugarcane cultivar when applying ametryn or trifloxysulfurom sodium.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleSugarcane cultivars present differential susceptibility to herbicides ametryn and trifloxysulfuron-sodium.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-06-06T23:53:09Zpt_BR
dc.subject.thesagroIntoxicaçãopt_BR
dc.subject.thesagroHerbicidapt_BR
dc.subject.thesagroCana de açúcarpt_BR
dc.subject.nalthesaurusTrifloxysulfuronpt_BR
dc.subject.nalthesaurusSaccharumpt_BR
dc.subject.nalthesaurusHerbicidespt_BR
riaa.ainfo.id989153pt_BR
riaa.ainfo.lastupdate2017-06-06pt_BR
dc.contributor.institutionALEXANDRE FERREIRA DA SILVA, CNPMS; GERMANI CONCENCO, CPAO.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CNPMS)

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