XO7S是一个实用性较好的中籼光(温)敏核不育系,起点温度较低,育性稳定,育性转换明显,制种风险较小、秋、冬繁产量高,配制组合优势较强,并表现较好的早熟遗传性、结实性和抗白叶枯病特性,1992年与中籼665、明恢63配制的中灿杂交组合,小区试验亩产分别达到622.5kg和605kg,比对照汕优63显著增产。 XO7S is a more practical medium indica (thermo) sensitive genic male sterile line with lower initial temperature, stable fertility, obvious fertility conversion, less risk of seed production, high yield in autumn and winter, Stronger and better performance of precocious hereditary, fruiting and bacterial blight resistance, 1992 and medium indica 665, Minghui 63 prepared in the Can hybrid cross combinations, plots yield per capita reached 622.5kg and 605kg, Shanyou 63 significantly increased compared with the control.