In order to improve breeding efficiency and make clear of the relationship between agronomic characteristics and yield of rice germplasm resources in Heilongjiang Province, the main agronomic characteristics of 139 rice germplasm resources were studied by using the methods of descriptive analysis, correlation analysis and path analysis. The results showed: the rice germplasm resources in Heilongjiang Province are rich and the stability is good. The coefficient of variation of 12 agronomic traits were more than 11%. The number of tillers, grain number per panicle, effective panicles, leaf width were positively correlated with yield, grain shape was nega-tively correlated with yield. 10 agronomic characteristics could be classified into 4 main components, the cumulative contribution rate was 68.759%.%为明确黑龙江省主要水稻种质资源农艺性状与产量之间的关系,更高效的选育水稻新品种,以139份水稻种质资源为材料,采用描述性分析、相关分析、通径分析等方法对影响产量的主要农艺性状进行了试验研究.结果表明,黑龙江省水稻种质资源比较丰富,12个农艺性状的变异系数均≥11%,并且稳定性很好;分蘖株数、每穗粒数、有效穗数、剑叶宽度与产量呈正相关关系,谷粒形状与产量呈负相关关系;10个农艺性状可以归为4个主成分,其累计贡献率为68.759%.
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