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vol.23 número2EFEITOS DO FÓSFORO E DO ZINCO NO ARROZ DE SEQUEIRO EM LATOSSOLO VERMELHO ESCUROINFLUÊNCIA DA ÉPOCA DE PLANTIO E CLASSES DE BULBILHOS NO RENDIMENTO DE ALHO índice de autoresíndice de assuntospesquisa de artigos
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Ciência Rural

versão impressa ISSN 0103-8478

Resumo

SACCOL, Ailo Valmir  e  STORCK, Lindolfo. PHENOTYPIC STABILITY ANALYSIS OF SOYBEAN CULTIVARS IN 28 ENVIRONMENTS OF THE STATE OF RIO GRANDE DO SUL. Cienc. Rural [online]. 1993, vol.23, n.2, pp.145-149. ISSN 0103-8478.  http://dx.doi.org/10.1590/S0103-84781993000200004.

Yield data of 21 soybean variety from trials conducted in 28 environments in the Rio Grande do Sul State were used for a stability analyses using the discontinuous bi-segmented model (STORCK, 1989) with corrections due to errors in the variables. The main conclusions were: 1) The method was adequate for phenotype stability studies of soybean varieties since there was a wide environmental variation and a good data adjustment to the model; 2) The group of varieties can be considered as undesirables (Hill, IAS-2, Paraná, Prata, Sel. Foscarin, Louisiana, Hardee, Bienville, Industrial, Santa Rosa, Bossier and Viçoja); b) Adaptable to both unfavorable and favorable environments, within the region studied (Pérola, Bragg and Jakson); c) Adaptable to favorable environments (Planalto, Hale-7, IAS-5, IAS-1 and IAS-4); d) Adaptable to average environments (Hood).

Palavras-chave : soybean; stability analysis; cultivar-environment interaction.

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