优质籼型水稻新不育系荃9311A的选育  

Breeding of New Quality Indica CMS Line Quan 9311A in Rice

作　　者：王合勤[1] 陈金节[1] 张云虎[1] 张从合 严志[1] 刘兴江[1] 陈琳[1] 

机构地区：[1]安徽荃银高科种业股份有限公司,安徽合肥230088

出　　处：《杂交水稻》2013年第6期10-12,共3页Hybrid Rice

基　　金：国家科技支撑计划(2012BAD07B01);公益性行业科研专项(201203052);国家星火计划(2011GA710008);国家高新技术产业化项目[发改办高技(2012)1961号]

摘　　要：荃9311A是利用柱头外露好的中9B、分蘖性强的222B和两系强恢复系R9311采用多亲本杂交,即中9B∥222B/R9311,多代种植后,优选单株与中9A测交并多代回交选育的籼型水稻不育系。该不育系不育性稳定,不育株率100%,花粉败育以典败为主,花粉不育度达99.98%;柱头外露率高,配合力强,米质优(达国标优质稻谷1级),株叶形态好,2011年通过安徽省农作物品种审定委员会组织的专家技术鉴定。Quart 9311A, derived from the multiple cross of Zhong 9B （with high stigma exsertion rate） //222B （ with strong tillering ability） /R9311 （ a strong restorer line for two-line system） and its filial single plants selected to cross to Zhong 9A in pairs, is a new indica CMS line in rice. It shows a complete and stable male sterility with 100% of sterile plants and 99.98% of pollen sterility. Most of its abortive pollen grains belong to the typical abortion type. It has good plant type, high combining ability, high stigma exsertion rate and fine grain quality （meeting the 1st class of national standards for fine quality rice）. In 2011, it was technically identified by Anhui Provincial Crop Variety Appraisal Committee.

关 键 词：水稻不育系 荃9311A 优质 选育 

分 类 号：S511.03[农业科学—作物学] S334