Data/hora: 15/06/2024 18:06:30

Biblioteca(s): | Embrapa Arroz e Feijão; Embrapa Unidades Centrais.
Data corrente: | 22/12/2017
Data da última atualização: | 03/01/2018
Autoria: | MORAIS JÚNIOR, O. P. de; MELO, P. G. S.; MORAIS, O. P. de; COLOMBARI FILHO, J. M.
Afiliação: | ODILON PEIXOTO DE MORAIS JUNIOR, UFG; PATRICIA GUIMARÃES SANTOS MELO, UFG; ORLANDO PEIXOTO DE MORAIS, CNPAF; JOSE MANOEL COLOMBARI FILHO, CNPAF.
Título: | Genetic variability during four cycles of recurrent selection in rice.
Ano de publicação: | 2017
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n, 11, p. 1033-1041, nov. 2017.
ISSN: | 1678-3921
DOI: | 10.1590/S0100-204X2017001100009
Idioma: | Inglês
Conteúdo: | The objective of this work was to estimate genetic and phenotypic parameters among progenies of the CNA6 population of upland rice (Oryza sativa) for grain yield and plant height in four cycles of recurrent selection, in order to evaluate the genetic variability and the genotype × location interaction. The experimental data were obtained from yield trials of S0:2 progenies, which were carried out in the experimental design of Federer?s augmented blocks, without replications for progenies within each location. The effect of S0:2 progenies was significant in all cycles for grain yield and in the first three cycles for plant height, indicating the maintenance of the population?s genetic potential to generate transgressive progenies. The participation of the component of the progeny × location interaction in phenotypic variance was of high magnitude. The genetic variability of the CNA6 population of upland rice is maintained for grain yield and plant height during the four cycles of recurrent selection.
Palavras-Chave: | Genética quantitativa componentes de variância; Interação genótipo × ambiente; Melhoramento populacional; Population improvement; Variance components.
Thesagro: | Arroz; Melhoramento genético vegetal; Oryza Sativa; Seleção recorrente.
Thesaurus Nal: | Genotype-environment interaction; Quantitative genetics.

Categoria do assunto:

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G Melhoramento Genético

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/169710/1/Genetic-variability-during.pdf
Registro original: | Embrapa Arroz e Feijão (CNPAF)

Exemplares:

AI-SEDE - (62079-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS
CNPAF - (35026-1) - UPC - AP - DD - 2017 -  - 2017 - DIS