氮素积累量与收获指数和氮收获指数呈极显著正相关关系，而与氮素干物质生产效率呈极显著负相关，与氮素籽粒生产效率相关不显著。
It was also showed that the nitrogen content in rice grain had very significantly negative correlation with NHI, NDMPE, and NGPE, while had no significant correlation with hi.
第8染色体22.4 ~ 23.6位点上检测到成熟期影响稻谷产量、稻草氮素含量、稻谷氮素含量和氮素籽粒生产效率等性状的QTL；
Morever, at mature stage, QTLs for GY, rice straw nitrogen content, grain nitrogen content, NGPE were located at 22.4 ~ 23.6 on chromosome 8;
第8染色体22.4 ~ 23.6位点上检测到成熟期影响稻谷产量、稻草氮素含量、稻谷氮素含量和氮素籽粒生产效率等性状的QTL；
Morever, at mature stage, QTLs for GY, rice straw nitrogen content, grain nitrogen content, NGPE were located at 22.4 ~ 23.6 on chromosome 8;
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