The grey relational analysis (GRA) was used to evaluate the 10 sugarcane lines by 13 main agronomic characters. The result showed that the grey correlation degree of self-cultivated lines GNY08-320 (0.7502), GNY08-336 (0.7409), GNY08-186 (0.7369), and GNY08-225 (0.7277) were higher than ROC22...