Data/hora: 05/06/2024 11:11:25

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 11/07/2023
Data da última atualização: | 11/07/2023
Autoria: | GUIMARÃES, P. H. R.; CASTRO, A. P. de; COLOMBARI FILHO, J. M.; TORGA, P. P.; RANGEL, P. H. N.; MELO, P. G. S.
Afiliação: | PAULO HENRIQUE RAMOS GUIMARÃES, UNIVERSIDADE FEDERAL DE GOIÁS; ADRIANO PEREIRA DE CASTRO, CNPAF; JOSE MANOEL COLOMBARI FILHO, CNPAF; PAULA PEREIRA TORGA, CNPAF; PAULO HIDEO NAKANO RANGEL, CNPAF; PATRÍCIA GUIMARÃES SANTOS MELO, UNIVERSIDADE FEDERAL DE GOIÁS.
Título: | Diallel analysis: choosing parents to introduce new variability in a recurrent selection population.
Ano de publicação: | 2023
Fonte/Imprenta: | Agriculture, v. 13, 1320, 2023.
ISSN: | 2077-0472
DOI: | https://doi.org/10.3390/agriculture13071320
Idioma: | Inglês
Conteúdo: | Selecting appropriate donors and acquiring information about the genetic basis of inheritance is essential for breeding programs. In this study, a diallel cross was produced by crossing 15 progenies with five commercial lines of wide diversity for different rice traits (grain yield, plant height, days to flowering, panicle blast, brown spots, leaf scald, and grain discoloration) in an incomplete crossing design. The 20 parents and the 25 F2 crosses constituting the diallel cross were evaluated in a triple lattice design for different traits in a field test. The analysis of variance revealed significant differences between parents and their crosses for all traits, showing high variability. The general combining ability (GCA) and the specific combining ability (SCA) were significant, with a greater contribution of the SCA compared to GCA for the variation among crosses, indicating that non-additive effects were more prevalent for the traits evaluated. The results suggested that commercial lines such as IRGA 424 and BRS Catiana can be used to improve CNA 12T population.
Palavras-Chave: | Genetic parameters; Non-additive gene effects.
Thesagro: | Arroz; Melhoramento Genético Vegetal; Oryza Sativa; Parâmetro Genético; Seleção Recorrente.
Thesaurus Nal: | Additive gene effects; Diallel analysis; Recurrent selection; Rice.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154867/1/agriculture-2023.pdf
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (36761-1) - UPC - AP - DD - 2023 -  - 2023 - DIS