Genotype × environment interactions in sugarcane. I. Patterns of response across sites and crop-years in north Queensland

摘要: Responses of sugarcane genotypes across environments in north Queensland for sugar yield and its components cane content, were examined using pattern analysis methods. The aim was to provide information which could be used designing efficient selection methods breeding programs. Of particular interest the comparison variation relative performance sites crop-years. Results from two series trials are presented. In first series, 65 evaluated at four plant, ratoon second crops. second, 52 plant Crops years confounded both series. Crop-years within generally more similar genotypic responses than different sites. Within most ranking groups derived cluster However, there some substantial differences between would vary if subsets considered. There little among general response results indicate that testing is importance. similarity obtained crop-years suggests may limited gain multiple crops or a site.