GGE Biplot Analysis in Evaluations in Bunches Characteristics from Assai Palm Trees of the Amazon Region

• Main Authors: Gilberto Ken Iti Yokomizo, João Tomé de Farias Neto, Kuang Hongyu, Maria do Socorro Padilha de Oliveira
• Format: Article
• Language: English
• Published: Universidad Nacional de Colombia 2017-01-01
• Series: Mundo Amazónico
• Subjects: Euterpe oleracea; interação genótipos x ambientes; estabilidade; adaptabilidade; GGE Biplot
• Online Access: https://revistas.unal.edu.co/index.php/imanimundo/article/view/63456

The interest by assai palms fruits in other regions of the country makes necessary genetic improvement for the Euterpe oleracea. The research aimed to verify, by gge (Genotype main effects + Genotype-by-environment interaction) biplot, those promising for selection among 30 families from different mother plants of a population of the municipality of Anajás and cultivated in Tomé-Açu, Pará, and also identify the environment that best allows the discrimination of these. The experimental design was in randomized blocks, with 30 treatments (progenies) and three repetitions, were evaluated the characteristics: average weight of the bunches (pmc), in grams; total number of clusters (ntc) and; total weight of the bunches (ptc). It was concluded that for purposes of selection based on the ideotype, the best genotypes in pmc were G22 and G19; in ptc are G10 and G14, and ntc was the genotype G10; the genotypes with average values for the evaluated characteristics showed less stability, except G10 for ptc; The gge biplots allow you to view the layout, the inter-relationship with environmental effects and choose superior genotypes; in the graphical analysis by gge biplot method the environments effects (years) allow differentiation of genotypes, with emphasis to the environment A3 for pmc and ptc, and A1 For ntc; for the representativity of all environments is the A1 on the characteristics pmc and ptc; while that is the A2 for ntc.