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	Provedor de dados R. Bras. Zootec. (1) Autor Davide,Lisete Chamma (1) Nunes,Juliane Dornellas (1) Pereira,Roselaine Cristina (1) Pinto,José Eduardo Brasil Pereira (1) Souza Sobrinho,Fausto de (1) Souza,Patrícia Nirlane da Costa (1) Timbó,Ana Luiza de Oliveira (1) Mais... Palavra-chave DNA content (1) Forage plant breeding (1) Number of chromosomes (1) Pollen viability (1) Polyploidy induction (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2014 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Obtaining tetraploid plants of ruzigrass (Brachiaria ruziziensis) R. Bras. Zootec. Timbó,Ana Luiza de Oliveira; Souza,Patrícia Nirlane da Costa; Pereira,Roselaine Cristina; Nunes,Juliane Dornellas; Pinto,José Eduardo Brasil Pereira; Souza Sobrinho,Fausto de; Davide,Lisete Chamma. The objective of the present work was to induce chromosome doubling in genotypes of Brachiaria ruziziensis with potential for production of good-quality biomass and tolerance/resistance to stress caused by aluminum and spittlebugs. Germinated seeds of B. ruziziensis were immersed in 0.1% colchicine solution for 2 or 3 hours. Ploidy level was determined by flow cytometry and confirmed by chromosome count. Fertility of the tetraploid plants was assessed through evaluation of pollen viability by staining. There was no statistical difference with regard to seedling survival and number of duplicate seedlings between the treatments. Survival rate was 8%, of which 11.45% were tetraploid genotypes. The mean viability of pollen grains from the evaluated tetraploid... Tipo: Info:eu-repo/semantics/article Palavras-chave: DNA content; Forage plant breeding; Number of chromosomes; Polyploidy induction; Pollen viability. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000300004 Registros recuperados: 1 Primeira ... 1 ... Última

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