黑龙江省水稻主栽品种农艺性状与产量的相关性研究

通过对黑龙江省28个水稻主栽品种的农艺性状及产量构成因素之间的相关性分析,得出株 高与穗长、倒三茎长、倒三叶长呈极显著的正相关;在产量构成因素中,穗粒数与理论产量呈极显著 的正相关,相关系数为0．535(r0.05=0．374 r0.01=0．478 n=28);穗粒数与剑叶宽、倒二叶长、倒二宽、倒三 叶长、倒三叶宽呈显著或极显著的正相关;叶片的宽度与结实率呈显著或极显著的负相关,与理论产 量呈显著或极显著的正相关。

The Relation of Characters of the Main Plant Rice Breedsin HEI LONG JIANG Province to the fields

Through the relativity of agronomic characters of 28 main plant breeds in Heilongjiang province and yield factors, the results showed : plant height is remarked significant positive to panicle length, converse third burl length, converse third leaf length; Among the factors of field, grain number is remarked significant positive to theoretic yield, the correlation coefficient is 0.535 (r0.05=0.374 r0.01=0.478 n=28); grain number is remarked positive or remarked significant positive to blade leaf width, converse second leaf length, converse second leaf width, converse third leaf length, converse third leaf width; leaf width is remarked negative or remarked significant negative to seed-setting rate and remarked positive or remarked significant to theoretic yield.