Data/hora: 21/06/2024 03:21:46

Biblioteca(s): | Embrapa Trigo; Embrapa Unidades Centrais.
Data corrente: | 21/12/2017
Data da última atualização: | 17/08/2021
Autoria: | AGOSTINETTO, D.; ULGUIM, A. da R.; VARGAS, L.; SILVA, J. D. G. da; LANGARO, A. C.
Afiliação: | Dirceu Agostinetto, UFPEL/FAEM/DF; André da Rosa Ulguim, Universidade Federal de Santa Maria - UFSM; LEANDRO VARGAS, CNPT; Jessica Dias Gomes da Silva, UFPEL/FAEM/DF; Ana Claudia Langaro, UFPEL/FAEM/DF.
Título: | Morphophysiogenetic characterization of wild poinsettia biotypes with low resistance to glyphosate.
Ano de publicação: | 2017
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n, 11, p. 987-996, novembro 2017.
Idioma: | Inglês
Notas: | Título em português: Caracterização morfofisiogenética de biótipos de leiteira com baixa resistência ao glifosato.
Conteúdo: | The objective of this work was to compare wild poinsettia (Euphorbia heterophylla) biotypes as to their morphological characteristics, as well as to determine their genetic similarity in the state of Rio Grande do Sul, Brazil, and to confront the light compensation point of susceptible biotypes and of biotypes with low-resistance level to glyphosate. Besides the morphology analysis, the study included the genetic characterization, by AFLP, of susceptible (GR50 = 58.65 g ha-1 a.e.) biotypes and of biotypes with low resistance (GR50 = 310.36 g ha-1 a.e.) to glyphosate. The competitive ability of the biotypes was inferred according to their light compensation point. The observed morphological characteristics do not allow to differentiate biotypes as to their geographical location, or their resistance level to glyphosate. The genetic analysis identified low genetic diversity among the 15 tested biotypes, with a large amount of subgroups. The biotypes with low resistance formed an isolated group. The susceptible biotypes showed the lowest values of light compensation point and, possibly, they have a greater competitive ability under low-luminosity conditions. The evaluated characteristics do not enable to differentiate genotypes with different levels of glyphosate resistance.
Palavras-Chave: | Competitive ability; EPSPs inhibitor herbicide; Habilidade competitiva; Herbicida inibidor de EPSPs; Ight compensation point; Light compensation point; Ponto de compensação de luz; Resistência a herbicidas.
Thesagro: | Amendoim bravo; Erva daninha; Euphorbia Heterophylla.
Thesaurus Nal: | Amplified fragment length polymorphism; Herbicide resistance; Weeds.

Categoria do assunto:

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H Saúde e Patologia

URL:

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/173827/1/ID44304-2017v52n11p987PAB.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/169518/1/Morphophysiogenetic-characterization.pdf

Registro original: | Embrapa Trigo (CNPT)

Exemplares:

AI-SEDE - (62074-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS
CNPT - (44304-1) - UPC - AP - DD -  -  -  - DIS