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本文对当前有关水稻收获指数的研究进行综述，分析水稻品种收获指数的成固和遗传改良，指出水稻育种中产量进一步提高的途径是收获指数与生物学产量协调提高。
In this paper, we reviewed the current research on rice harvest index, analyzed the solidification and genetic improvement of rice variety harvest index, and pointed out that the way to further increase the yield of rice breeding is to coordinate the harvest index and biological yield.