Yield stability of soybean lines using addtive main effects and multiplicative interaction analysis - AMMI.

• Autor(a) principal: ROCHA, M. de M.
• Data de Publicação: 2004
• Outros Autores: VELLO, N. A., LOPES, A. C. de A., MAIA, M. C. C.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/507367
• topic: Interação genótipo-ambiente; Adaptabilidade; Adaptability; Estabilidade; Estability; Modelo AMMI; AMMI model; Semillas de soja; Interacción genotipo-ambiente; Rendimiento de los cultivos; Soja; Glycine max; Rendimento; Soybeans; Genotype-environment interaction; Crop yield

The grain yield of 27 soybean lines was evaluated at three locations (Anhembi, Areão and Esalq) in Piracicaba, State of São Paulo, Brazil, during four crop years to study the effect of environment (E) on the adaptability and stability of the lines (G) using additive main effects and multiplicative interaction analysis (AMMI). Effects of the G, E, and GE interaction were found to be significant and accounted for 51, 12, and 36% of the variation, respectively. The first and only significant interaction principal component axis (IPCA1) accounted for 26% of the sum of squares due to original GE interaction. This concentrated the largest proportion of the pattern of GE interaction. Environments associated with Anhembi and Esalq proved more favorable, while Areão contributed negatively to the grain yield. However, Anhembi and Areão were more predictable for the crop years. USP 93-5082 and USP 93-5243 lines combined high adaptability and stability.