目前在华南双季稻区的早稻生产中，依然广泛应用汕优桂９９、汕优６３和特优６３等中迟熟杂交稻组合。但由于汕优桂９９存在着产量潜力不大，汕优６３存在着叶片披散不适合华南早季雨水多、阳光不足生态条件，而特优６３外观品质较差等问题，因此，生产上亟需具有高产、稳产、 At present, in the early rice production in the double cropping rice area in South China, the middle-late maturing hybrid rice combination such as Shanyougui 99, Shanyou 63 and Teyou 63 is still widely used. However, there is little potential for yield in Shanyougui 99, and there is a problem that the leaf dissemination in Shanyou 63 is not suitable for the rainy season in southern China in the early season and the sunlight is poor, while the appearance quality of the Teyou 63 is poor. Therefore, With high yield, stable production,