Adaptabilidade e estabilidade de soja por métodos paramétricos e não-paramétricos

• Ano de defesa: 2007
• Autor(a) principal: Barros, Hélio Bandeira
• Orientador(a): Sediyama, Tuneo
• Banca de defesa: Sakiyama, Ney Sussumu , Fidélis, Rodrigo Ribeiro
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Doutorado em Fitotecnia
• Departamento: Plantas daninhas, Alelopatia, Herbicidas e Resíduos; Fisiologia de culturas; Manejo pós-colheita de
• País: BR
• Palavras-chave em Português: Soja; Produtividade; Adaptação; Maturidade
• Palavras-chave em Inglês: Soybean; Yield; Adaptability; Maturity
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA
• Link de acesso: http://locus.ufv.br/handle/123456789/1082

This work was developed by using grain yield data (kg ha-1) from the final competition test of soy from the breading program of the Campo Experimental Bacuri e Sales Agropecuária . The experiments were carried out in Mato Grosso (Nova Brasilândia, Campo Verde, Vera e Rondonópolis) at 2004/05 and 2005/06 experimental years. Based on the performance, stability and adaptability, this work aimed to evaluated, 94 lines of soy divided according to the following maturity groups: early, semi-early/medium, medium, semi- late/late and late, besides 14 cultivars throughout the following methods: Eberhart & Russel (1996); Lin & Binns (1988), modified by Carneiro (1998); Annicchiarico (1992) and Centroid (Rocha et al. 2005). The experiments were laid out in a complete randomized blocks scheme with four replicates for the following maturity groups: early, medium and late; and three replicates for the semi-early/medium and semi-late/late groups. Individual variances analyses were used by following the joined variances analyses for each maturity group. In order to implement such analyses the computational application in genetics and statistics GENES was used. To the joined analysis, the homogeneity of the residual variances was evaluated firstly, which was calculated by the ratio between the largest and the smallest mean square residual. By considering all environments inside each maturity group it was obtained the following mean productivities: 3200 kg ha-1 (early), 3080.1 kg ha-1 (semi-early/medium), 3297 kg ha-1 (medium), 2994 kg ha-1 (semi-late/late) and 3292 kg ha-1 (late). The lines SL 2238, SL 1949, SL 31, SL 2382 and the standard cultivars Uirapuru and M-Soy 8411 showed the largest averages for the early maturity groups, and they were classified according to the wide environmental conditions according to the methodology proposed by Eberhart and Russel, general adaptability ([Beta]1 = 1) and [0]2di [differs] 0, which indicate low stability. The lines SL 2238, SL 712, SL 1949 and the cultivar Uirapuru were classified as the most adapted and stable by Lin and Binns, Annicchiarico and Centroid methodologies. The cultivars M-soy 8329, M-soy 8411, Conquista, FT 109 and Tucunaré (semi-early/medium maturity group) presented regression coefficient statistically similar to one ([Beta]1 = 1) and a deviation regression non-significant ([0]2di [differs] 0), which is classified as general adaptability and high stability, by using the methodology proposed by Eberhart and Russell. The line BCR 03 142498 and the standart cultivars M-soy 8329 and M-soy 8411 were classified according to the wide environmental conditions, which means high stability, by using the methodologies developed by Lin and Binns, Annicchiarico and Centroid. The lines SL 10, SL 1842, SL 2022, SL 703 and the cultivar Uirapuru (medium cycle genotypes) presented high mean productivity, general adaptability and high productivity as well. The lines BCR 02 57, BCR 02 25, BCR 02 20, the cultivars Tabarana and SL 88102 (semi-late/late maturity group) were classified as the most productive, presenting a wide adaptability and stable according to the methodology proposed by Lin and Binns and Centroid. The lines SL 1831, SL 1923, SL 627, SL 2280 and SL 310 (late maturity group) were classified according to the methodology proposed by Annicchiarico and Centroid, by having the highest productivity, a wide adaptability and stability, as well. The lines: SL 2238, SL 1949 and SL 712 (early cycle); BCR 03 142498 (semi-early/medium cycle); SL 10, SL 1842, SL 2022 and SL 703 (medium cycle); BCR 02 57, BCR 02 25, BCR 02 20 (semi-late/late cycle) and SL 1831, SL 627, SL 2280 and SL 310 (late cycle) presented high performance in a wide range of environmental conditions. The late cycle line SL 818 showed the best performance for specific conditions of favorable environments.