【摘要】 嘉浙 A是用优质早籼嘉浙 B(代号 Y33)作轮回亲本 ,与野败型不育系珍汕 97A连续回交育成 .1999年 7月通过浙江省科委组织的技术鉴定 .嘉浙 A的主要特性如下 :1米质优 :据农业部稻米及制品质量监测中心化验的十项米质指标中 ,嘉浙 A有六项达国家优质籼米一级标准 ,四项达二级标准 .2不育性稳定 :嘉浙 A不育株率 10 0 % ,不育度 99.98% ,符合籼型不育系的育性标准 .3性状优良 :嘉浙 A穗型大 ,配合力好 ,花时早而集中 ,柱头外露率高 ,制、繁种产量较高更多还原

【Abstract】 Jiazhe A is a WA type fine quality indica CMS line developed successively through crossing Jiazhe B (No:Y33) to Zhenshan 97A and backcrossing with Jiazhe B as the recurrent parent. It was technically certified in Zhejiang in July 1999. Quality indexes of JiazheA were analyzed and six of ten indexes were fine to meet the first class standards of GB/T 17891 1999, and other four indexes meet the second class standards. The rate of male sterility plant was 100 percent and the sterility degree was 99.98 percent as the result of the technically certify. JiazheA has good characters such as large panicle, early and concentrate anthesis time and high rate of stigma exsertion rate,higher yield in its multiplication and hybrid seed production.更多还原