西A是广西博白县农业科学研究所选育出的三系不育系,该不育系米质优,开花习性较好,异交结实率高,2009年10月通过广西农作物品种审定委员会鉴定。多年生产实践表明,该不育系最佳抽穗扬花温度在28~30℃,湿度在80%~85%。总结了该不育系的主要特征特性及其高产繁殖技术。 West A is Guangxi Bobai County Institute of Agricultural Sciences breeding of three lines of sterile lines, the CMS rice is good, flowering habits better, outcrossing seed setting rate, in October 2009 through the Guangxi Crop Variety Approval Committee Identification. Years of production practice shows that the optimal flowering date of the male sterile flowering 28 ~ 30 ℃, humidity in the 80% to 85%. The main characteristics and characteristics of the CMS line and its high yielding breeding technology were summarized.