Data/hora: 09/06/2024 05:24:28

Provedor de dados: | 65
País: | Brazil
Título: | Consistency of two stability analysis methods in potatoes
Autores: | Souza,Velci Queiroz de; Pereira,Arione da Silva; Silva,Giovani Olegário da; Fritsche Neto,Roberto; Oliveira,Antônio Costa de.
Data: | 2007-06-01
Ano: | 2007
Palavras-chave: | Solanum tuberosum; G x E interaction; AMMI model; Bi-segmented method.
Resumo: | The objective of this research was to compare the consistency of the bi-segmented and AMMI (additive main effects and multiplicative interaction analysis) methods for estimating yield stability in potatoes. Data of ten genotypes evaluated in 34 environments (local, growing season and year combinations) of the Rio Grande do Sul state, Brazil, in 1994 and 1995 were used. Three data sets were analyzed: 34-environment data set and two 17-environment data subsets, which were chosen by randomly dividing the total data set. For the 34-environment data set, the models gave similar results in relation to the stable genotypes, but they differed with regard to the unstable genotypes. For the 17-environment data sets, the bi-segmented model showed more consistent results, either between subsets or between these and the total data set. For the AMMI model, only the Santo Amor genotype showed consistency between one of the subsets and the total data set. In this work, the bi-segmented method was shown to be more consistent than the AMMI model.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000300009
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/S0103-84782007000300009
Formato: | text/html
Fonte: | Ciência Rural  v.37 n.3 2007
Fonte: | info:eu-repo/semantics/openAccess