Stability parameters proposed by Lin and Binns (1988) compared with regression method

• Autor(a) principal: Correia Farias, Francisco José
• Data de Publicação: 1997
• Outros Autores: Patto Ramalho, Magno Antônio, de Carvalho, Luiz Paulo, Nunes Moreira, José de Alencar, Nunes da Costa, Joaquim
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Brasileira (Online)
• Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/4657
• topic: cotton adaptability; Gossypium hirsutum; adaptabilidade do algodão; Gossypium hirsutum

The stability parameters proposed by Lin & Binns (1988) method for yield of seed cotton were compared with the regression method proposed by Eberhart & Russell (1966). The experiments were composed by nine cultivars tested at randomized complete block design with six replicates carried out by CNPA in sixteen sites on Northeast Brazil in 1991 and 1992. The estimate comparison between the two methods was performed by Spearman rank correlation. The cultivars CNPA 6H and CNPA 85-241 showed high yields, β1 ≥ I, R2 > 95%, low values of Pi and contributed only with 2.1 and 3.5% of total interaction while the CNPA Giorge I was the more instable. The Spearman rank correlation between β1 and Pi in 1992 was -0.96 significative by t test (P ≤ 0,01) indicating that these parameters provided the same results. The advantage of Pi utilization is that there is no restriction on the independence of variables and also it indicates the materials with performance near the maximum value in different environments tested.