优质籼稻不育系西A的选育与应用

西A是博白县农科所用博B×秋B的后代与自育的中间材料“双博Ⅱ秋B”、“双博Ⅱ／秋Ⅱ博B”杂交制保，以秋A为母本经多代回交转育而成的优质籼型三系不育系。具有农艺性状稳定，败育彻底，开花习性好，米质优，可恢复性好，配合力高等特点，于2008年10月通过广西科技厅田间技术鉴定。西A12项米质指标均达部颁优质食用稻米标准，其中9项指标达到优质一级标准。文章同时对其繁殖与制种技术要点作了介绍。

Breeding and application of indica rice male sterile line Xi A with good grain quality

Xi A is an indica rice three-line male sterile line derived from backerossing between Qiu A （female parent） and the crossing progeny between the crossing progeny of Bo B×Qiu B and self-bred middle materials Shuangho Ⅱ Qiu B and Shnangbo Ⅱ/Qiu/fBo B, by Bobai Institute of Agricultural Sciences. Xi A showed stable agronomic traits of population, thorough abortion, better flowering habit and restorability, good grain quality and high combining ability, etc. It passed the field identification by Guangxi Department of Science and Technology in October, 2008. The 12 grain quality indexes of Xi A reached the standard of good grain quality rice of the Ministry of Agriculture, and 9 indexes reached the first grade standard of good grain quality. Furthermore, the propagation and seed production technologies were introduced in the present study.