Applying the method of Fuzzy Comprehensive Evaluation, 139 sugarcane crosses were comprehensively evaluated with the characters of brix, stem thickness, plant height and number of millable cane/ stool of F1 seedlings and emergence rate of seedling character in range of assess criterion as degree of membership. The results of evaluating the crosses were further tested with selection ration of crosses and selection ration of clone. As a result, it indicated that 14 crosses were the excellent, 22 crosses the better, 15 crosses the general, 39 crosses the less inferior and 49 crosses inferior. The selection ration of crosses was respectively 35.71%, 36.36%, 26.67%, 23.08% and 6.12%, the selection ration of clones was respectively 0.23%, 0.14%, 0.02%, 0.06% and 0.03% for the excellent crosses, the better crosses, the general crosses, the less inferior crosses and the inferior crosses. The selection efficiency for excellent, better crosses was higher than that of general, less inferior crosses and the selection efficiency for general, less inferior crosses was higher than that of inferior crosses. This indicated that the result of Fuzzy Comprehensive Evaluation for sugarcane crosses was effective for sugarcane crosses selection and clone selection, and it is helpful for sugarcane breeding selection.
Sugar Crops of China
Fuzzy comprehensive evaluation