Título:	Glyphosate translocation in herbicide tolerant plants.
Autoria:	GALON, L. FERREIRA, E. A. ASPIAZÚ, I. CONCENCO, G. SILVA, A. F. SILVA, A. A. VARGAS, L.
Afiliação:	Leandro Galon, Universidade Federal da Fronterira Sul ? UFFS; Universidade dos Vales do Jequitinhonha e Mucuri – UFVJM; Univesidade Estadual de Montes Claros Montes Claros – UNIMONTES; GERMANI CONCENCO, CPAO; ALEXANDRE FERREIRA DA SILVA, CNPMS; Universidade Federal de Viçosa - UFV; LEANDRO VARGAS, CNPT.
Ano de publicação:	2013
Referência:	Planta Daninha, Viçosa, MG, v. 31, n. 1, p. 193-201, jan./mar. 2013.
Conteúdo:	The objective of this study was to evaluate glyphosate translocation in glyphosate-tolerant weed species (I.nil, T.procumbens and S.latifolia) compared to glyphosate-susceptible species (B. pilosa). The evaluations of 14 C-glyphosate absorption and translocation were performed at 6, 12, 36 and 72 hours after treatment (HAT) in I. nil and B. pilosa, and only at 72 HAT in the species T. procumbens and S. latifolia. The plants were collected and fractionated into application leaf, other leaves, stems, and roots. In S. latifolia, approximately 88% of the glyphosate remained in the application leaf and a small amount was translocated to roots at 72 HAT. However, 75% of the herbicide applied on T. procumbens remained in the leaf that had received the treatment, with greater glyphosate translocation to the floral bud. It was concluded that the smaller amount of glyphosate observed in S. latifolia and T. procumbens may partly account for their higher tolerance to glyphosate. However, I.nil tolerance to glyphosate may be associated with other factors such as metabolization, root exudation or compartmentalization, because a large amount of the herbicide reached the roots of this species.
Thesagro:	Bidens pilosa Corda de viola Erva daninha Picão preto
NAL Thesaurus:	Weeds Ipomoea nil Tridax procumbens
Palavras-chave:	Spermacoce latifolia
Digital Object Identifier:	10.1590/S0100-83582013000100021
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPMS)