CORRELATION AMONG PREDICTED GENOTYPIC VALUES AND ADAPTABILITY AND STABILITY ESTIMATES OF SUGARCANE CLONES IN A MIXED MODELS CONTEXT

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Main Author: Irlane Todelo Bastos
Format: Artículo científico
Language:en
Published: Universidade Federal do Paraná 2009
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author Irlane Todelo Bastos
author_facet Irlane Todelo Bastos
contents CORRELATION AMONG PREDICTED GENOTYPIC VALUES AND ADAPTABILITY AND STABILITY ESTIMATES OF SUGARCANE CLONES IN A MIXED MODELS CONTEXT Irlane Todelo Bastos Márcio Henrique Pereira Barbosa Marcos Deon Vilela de Resende Cássia Ângela Pedrozo Cristiane Gamarano Melo Luiz Alexandre Peternelli Paulo Mafra de Almeida Costa Clariana Valadares Xavier David Carlos Ferreira Baffa Agrociencias Sugarcane trials augmented blocks genotype by environment interaction The objective of the present study was to apply the mixed model theory to predict the genotypic values and to estimate the adaptability and stability parameters of sugarcane clones evaluated in augmented blocks designs in several environments and to assess the correlation among these predicted and estimated values. Methodologies by Wricke (Wricke & Webber, 1986), Eberhart & Russell (1966) and Carneiro (1998) were used. The predicted genotypic values free from genotype x environment interaction were strongly correlated with the parameters estimated by the Carneiro¿s methodology, moderately correlated with adaptability parameter ( ) of Eberhart and Russel and weakly correlated with the Wricke ¿i (%) parameter and with R2 i (%) parameter of Eberhart and Russell. The Wricke ¿i (%) parameter only presented significant correlation with the R2 i (%) parameter of Eberhart and Russell, indicating the similarity of both in assessing the stability of genotypes. These results show that the predicted genotypic values free from genotype x environment interaction effects correlate better with adaptability than with stability. 2009 artículo científico 1519-1125 https://www.redalyc.org/articulo.oa?id=99515565004 en http://www.redalyc.org/revista.oa?id=995 Scientia Agraria application/pdf Universidade Federal do Paraná Scientia Agraria (Brasil) Num.2 Vol.10
format Artículo científico
id redalyc_99515565004
institution Redalyc
language en
publishDate 2009
publisher Universidade Federal do Paraná
spellingShingle CORRELATION AMONG PREDICTED GENOTYPIC VALUES AND ADAPTABILITY AND STABILITY ESTIMATES OF SUGARCANE CLONES IN A MIXED MODELS CONTEXT
Irlane Todelo Bastos
Agrociencias
Sugarcane trials
augmented blocks
genotype by environment interaction
CORRELATION AMONG PREDICTED GENOTYPIC VALUES AND ADAPTABILITY AND STABILITY ESTIMATES OF SUGARCANE CLONES IN A MIXED MODELS CONTEXT Irlane Todelo Bastos Márcio Henrique Pereira Barbosa Marcos Deon Vilela de Resende Cássia Ângela Pedrozo Cristiane Gamarano Melo Luiz Alexandre Peternelli Paulo Mafra de Almeida Costa Clariana Valadares Xavier David Carlos Ferreira Baffa Agrociencias Sugarcane trials augmented blocks genotype by environment interaction The objective of the present study was to apply the mixed model theory to predict the genotypic values and to estimate the adaptability and stability parameters of sugarcane clones evaluated in augmented blocks designs in several environments and to assess the correlation among these predicted and estimated values. Methodologies by Wricke (Wricke & Webber, 1986), Eberhart & Russell (1966) and Carneiro (1998) were used. The predicted genotypic values free from genotype x environment interaction were strongly correlated with the parameters estimated by the Carneiro¿s methodology, moderately correlated with adaptability parameter ( ) of Eberhart and Russel and weakly correlated with the Wricke ¿i (%) parameter and with R2 i (%) parameter of Eberhart and Russell. The Wricke ¿i (%) parameter only presented significant correlation with the R2 i (%) parameter of Eberhart and Russell, indicating the similarity of both in assessing the stability of genotypes. These results show that the predicted genotypic values free from genotype x environment interaction effects correlate better with adaptability than with stability. 2009 artículo científico 1519-1125 https://www.redalyc.org/articulo.oa?id=99515565004 en http://www.redalyc.org/revista.oa?id=995 Scientia Agraria application/pdf Universidade Federal do Paraná Scientia Agraria (Brasil) Num.2 Vol.10
title CORRELATION AMONG PREDICTED GENOTYPIC VALUES AND ADAPTABILITY AND STABILITY ESTIMATES OF SUGARCANE CLONES IN A MIXED MODELS CONTEXT
topic Agrociencias
Sugarcane trials
augmented blocks
genotype by environment interaction
url https://www.redalyc.org/articulo.oa?id=99515565004