Joint Regression Analysis of Some Quantitative Charactersof Fi Sugarcane Genotypes

摘要

To determine the magnitude of the genotype-environment (G x E) interaction and stability in sugarcane (Sacchamm officinarum L.), 10 randomly selected F! genotypes were evaluated for two years at three locations in the North-Western zone of Bangladesh.Genotypes were developed from the crosses of North Carolina Design-I at the Bangladesh Sugarcane Research Institute. A joint regression analysis of variance for all the characters showed highly significant genotypic (G) and environment (E) items and their interaction. In most cases, both linear and non-linear regression accounted for the G x E interaction and the heterogeneity of regression showed non-significance for all characters. The G x E interaction was due to the slopes of non-linear relationshi