不同类型水稻品种结实率的研究

Study on the Fulfilled Grain Percentage of Various Types of Rice Varieties

本文研究了水稻干物质分配比例、子粒灌浆特性、剑叶光合能力等对不同类型水稻品种结实率的影响。结果认为：未来超高产水稻品种应具有谷草比较大，剑叶光合能力较强并在后期持续较长时间，强弱势粒粒重差较早达到高峰并在后期降幅较大，所达恒定值较小的穗重型品种类型。

It was studied in this paper, that the effect of the partitioning ratio of dry matter, the property of grain filling and the photosynthetic capacity of flag leaf on fulfilled grain percentage of various types of rice varieties. The result showed that the super high yield rice varieties should be large head type and have some characteristics with higher ratio of grain to straw, higher photosynthetic capacity and longer duration of flag leaf and the difference of grain weight between strong and weak potential grains should get to the peak earlier and drop fast.