Multivariate analysis of GGE and AMMI biplot graph to investigate geno-type by environment interaction of rice hybrids at multiple locations in Malaysia

This study was conducted to investigate the genotype by environment (G×E) interaction of 20 rice hybrids tested in eight environments which include four locations and two different cropping seasons Malaysia. The parameter observed on yield per ha, number panicles plant, filled grains panicle, thousand-grain weight. Data analysis used ANOVA stability measurement according AMMI GGE biplot graph. indicated that all studied phenotypic showed significantly variance genotypes, season, location, location × season. most promising were G19, G3, G18, G13, G8, G7, G14, resulting a higher mean ha. multivariate defined those divided into three categories. first category is with high wide adaptability (G19, G3 G4), second hybrid exhibiting suitable for specific (G12) lastly, low (G9, G11 G1). Hybrids stable performance could be further evaluated large-scale planting prior release commercial.