scholarly journals Additive main effects and multiplicative interaction analysis for storage root yield of cassava genotypes evaluated in Uganda

2001 ◽  
Vol 9 (4) ◽  
Author(s):  
P. H. Ntawuruhunga ◽  
P. Rubaihayo ◽  
J. B.A. Whyte ◽  
A. G.O. Dixon ◽  
D. S.O. Osiru
Keyword(s):  
Interaction Analysis ◽  
Storage Root ◽  
Root Yield ◽  
Multiplicative Interaction ◽  
Main Effects

scholarly journals Evaluation of maize hybrids and environmental stratification by the methods AMMI and GGE biplot

2010 ◽  
Vol 10 (3) ◽  
pp. 247-253 ◽  
Author(s):  
Rogério Lunezzo de Oliveira ◽  
Renzo Garcia Von Pinho ◽  
Márcio Balestre ◽  
Denys Vitor Ferreira
Keyword(s):  
Interaction Analysis ◽  
Environment Interaction ◽  
Gge Biplot ◽  
Multiplicative Interaction ◽  
Maize Hybrids ◽  
Growing Seasons ◽  
Single Cross ◽  
Predictive Correlation ◽  
Environmental Stratification ◽  
Main Effects

The purpose of this study was to evaluate yield stability, adaptability and environmental stratification by the methods AMMI (Additive Main Effects and Multiplicative Interaction Analysis) and GGE (Genotype and Genotypes by Environment Interaction) biplot and to compare the efficiency of these methods. Data from the evaluation of 20 experimental single-cross and three commercial hybrids and 11 locations, in two growing seasons, 2005/2006 and 2006/2007 were used. Analyses of variance, adaptability, stability and environmental stratification were performed. A better combination of adaptability and stability was observed in the hybrids 10 and 16, according to the graphics of AMMI and GGE biplot methods, respectively. The number of locations could be reduced by 28% based on stratification. The predictive correlation of the AMMI and GGE methods was 0.88 and 0.86, respectively. The results showed that it is possible to reduce the number of evaluation sites; AMMI tended to be more accurate than GGE analysis.

scholarly journals Adaptabilidade e estabilidade de clones de cana-de-açúcar

Bragantia ◽  
2013 ◽  
Vol 72 (3) ◽  
pp. 208-216 ◽  
Author(s):  
Antonio Ribeiro Fernandes Júnior ◽  
João Antonio da Costa Andrade ◽  
Pedro César dos Santos ◽  
Hermann Paulo Hoffmann ◽  
Roberto Giacomini Chapola ◽  
...  
Keyword(s):  
Interaction Analysis ◽  
Sao Paulo ◽  
São Paulo ◽  
Multiplicative Interaction ◽  
Main Effects

O objetivo deste trabalho foi identificar clones de cana-de-açúcar produtivos, com boa estabilidade e adaptabilidade no estado de São Paulo e, também, identificar locais mais representativos para seleção e experimentação. Foram avaliados dez clones e duas testemunhas comerciais de maturação média-tardia em primeira soca de experimentos colhidos em agosto de 2009, utilizando o método de regressão bissegmentada e análise AMMI (Additive Main Effects and Multiplicative Interaction Analysis). Os resultados dos dois métodos foram comparados e evidenciaram que os clones RB975201, RB975157, RB975932, RB975242 e RB975162 foram os mais promissores devido à produtividade superior à das testemunhas, a alta estabilidade verificada em um ou nos dois métodos e a adaptabilidade ampla ou específica. O ambiente Tarumã apresentou maior estabilidade e capacidade de discriminação entre os genótipos, o que permite um ordenamento mais confiável em relação à média geral dos ambientes testados.

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