籼型杂交水稻是我国在世界上第一个培育成功,杂交水稻的研究和推广我国也在世界上居领先地位,但多偏重于育种和栽培的研究,对杂交水稻的生理优势,特别是对谷粒产量生理的研究较少,而全面系统地探明籼型杂交水稻的生理优势表现,为栽培、育种提供可靠的生理指标,已成为进一步挖掘杂交水稻增产潜力,提高经济效益的关键性问题之一。 Indica hybrid rice is the first one in our country to cultivate successfully. The research and popularization of hybrid rice in China is also the leading position in the world, but more emphasis on breeding and cultivation of the physiological advantages of hybrid rice, especially for Physiological research on grain yield is less, and the physiological predominance of indica hybrid rice is systematically and systematically elucidated, providing reliable physiological indices for cultivation and breeding. It has become a key issue to further explore the yield potential of hybrid rice and increase economic benefits one.