应用灰色关联度分析法对江苏省水稻试区5个供试水稻品种的12个性状进行生态适应性综合评价分析。结果表明,灰色关联度分析法行之有效,并具有实践意义,其评价结果与品种表现一致。其中“9优138”品种关联度最大,综合性状最优,生态适应性最广且高产、稳产,应大面积推广。 Applying the gray relational analysis method, the 12 ecological traits of five rice cultivars in paddy area of ​​Jiangsu Province were evaluated synthetically. The results show that the method of gray relational analysis is effective and has practical significance. The evaluation results are consistent with those of breeds. Among them, “9 You 138” had the highest degree of correlation, the best comprehensive traits, the widest ecological adaptability, high yield and stable yield, and should be widely popularized.