Data/hora: 30/05/2024 15:04:02

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 19/08/2005
Data da última atualização: | 07/04/2022
Autoria: | SOARES, P. C.; MELO, P. G. S.; MELO, L. C.; SOARES, A. A.
Afiliação: | PLINIO CESAR SOARES, EPAMIG; PATRÍCIA GUIMARÃES SANTOS MELO, UFG; LEONARDO CUNHA MELO, CNPAF; ANTÔNIO ALVES SOARES, UFLA.
Título: | Genetic gain in an improvement program of irrigated rice in Minas Gerais.
Ano de publicação: | 2005
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, v. 5, n. 2, p. 142-148, June 2005.
Idioma: | Inglês
Conteúdo: | An evaluation of the genetic improvement programme of irrigated rice of Minas Gerais (Brazil) estimated the genetic gain obtained in the 90s. Grain yield data of the advanced comparative trials of cultivars and lines of continuously flooded rice, conducted from 1990-91 to 2000-01, were used. The estimate of the genetic gain was obtained by the methodology of the adjusted means proposed by Breseghello (1998). The mean annual genetic gain in the 90s was 42.45+or-17.89 kg ha-1 (0.7% per year). The improvement programme proved auspicious for the development of lines that outmatched the controls. The mean of the cultivars released in the 90s did however not outstrip the mean of the elite lines, which were the genotypes with the highest means in this study and will be further evaluated in the ongoing programme.
Palavras-Chave: | Cultivares.
Thesagro: | Arroz; Melhoramento Genético Vegetal; Oryza Sativa.
Thesaurus Nal: | cultivars; genetic improvement; rice.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/24014/1/bd6b8337-4583-a49e.pdf
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (22900-1) - UPC - AP - DD - 2005 -  - 2005 - DIS