Data/hora: 09/06/2024 08:45:29

Biblioteca(s): | Embrapa Arroz e Feijão; Embrapa Soja.
Data corrente: | 28/10/2003
Data da última atualização: | 24/04/2018
Autoria: | CARVALHO, C. G. P. de; ARIAS, C. A. A.; TOLEDO, J. F. F. de; ALMEIDA, L. A. de; KIIHL, R. A. de S.; OLIVEIRA, M. F. de.
Afiliação: | CLAUDIO GUILHERME PORTELA DE CARVAL, CNPSO; CARLOS ALBERTO ARRABAL ARIAS, CNPSO; JOSÉ FRANCISCO FERRAZ DE TOLEDO, CNPSo; LEONES ALVES DE ALMEIDA, CNPSo; ROMEU AFONSO DE SOUZA KIIHL, CNPSo; MARCELO FERNANDES DE OLIVEIRA, CNPSO.
Título: | Adaptability and stability study of soybean lines developed for high yield in Paraná state using four methodologies.
Ano de publicação: | 2002
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 2, p. 247-256, jun. 2002.
Idioma: | Inglês
Conteúdo: | An adaptability and stability study was carried out using soybean yield data from several locations in Paraná State, obtained from 1990 to 1999. The main objectives were: a) to check the efficiency of the Embrapa Soja breeding program for selecting the highest yielding lines with specific (regional) or broad adaptation; b) to analyze the performance of the control cultivars under favorable and unfavorable conditions; c) to identify the best stability methodology for inbred line evaluation. The evaluated lines were classified into early (L), semi- early (M) and medium (N) maturity groups. A randomized complete block design with four replications was used in each location and all analyses were carried out by maturity group. The number of M maturity lines that scored higher than the controls BR-16 and Embrapa 4 increased along the years, especially in unfavorable environments. On the other hand, the number of L and N maturity groups scoring higher than the controls either remained constant or fluctuated (increasing or decreasing) with time. The controls FT-Guaíra, Embrapa 4, BR-16 and FT-10 and the great majority of the tested lines showed broad adaptation. IAS 5 and FT-Abyara showed adaptation to poor environments and also broad adaptation. The analysis of the means in favorable and unfavorable environments was the most efficient method for soybean line evaluation. A methodology to classify soybean genotypes was proposed, based on these means.
Palavras-Chave: | Adaptabilidade; Environment interaction; Estabilidade; Genetic breeding; Melhoramento genético; Paraná.
Thesagro: | Glycine Max; Soja.
Thesaurus Nal: | genotype.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/175921/1/c8128f42-4f7d-08a5.pdf
Registro original: | Embrapa Soja (CNPSO)

Exemplares:

CNPAF - (21718-1) - ADD - AP - -- - 631.05 - C - 2004.00084 - DIS
CNPSO - (22318-1) - UPC - AP - PP -  -  -  - DIS
CNPSO - (22318-2) - UPC - AP - DD -  -  -  - DIS