根据浙北地区直播晚粳稻秀水 6 3计 6 6块田的调查数据 ,采用多元回归分析、通径分析和灰色关联分析 ,进行了多角度的计算机统计分析 ,探讨了直播晚粳稻栽培的高产途径。结果表明 ,直播晚粳稻产量性状对产量的效应大小依次为每穗总粒数 >有效穗数 >结实率 >粒重 ,其高产途径应是在确保高产所需的适宜穗数基础上 ,主攻大穗。 According to the survey data of 6 6 field plots of late spring rice Xiushui, which broadcast in northern Zhejiang, multiple regression analysis, path analysis and gray relational analysis were used to conduct multi-angle computer statistical analysis to explore the high-yielding ways of direct-seeding late-season japonica rice . The results showed that the effects of yield traits of late-sowing late japonica rice on yield were in the order of total grains per panicle> effective panicles> seed-setting rate> grain weight. The high-yielding approach should be based on the appropriate panicles needed to ensure high yield ear.