With the grey system model,the yield,commodity,loding resistance,resistance to diseases and insects and earliness of thirteen new rice varieties in Jiangsu province were analyzed.

• 运用灰色系统理论,对江苏省迟熟中粳新品系的产量、商品性、稳产性、抗倒性、抗病性和早熟性6个性状进行综合分析和评价。