优质香稻不育系宜香1A的选育与利用  

Breeding and Utilization of Aromatic Indica Rice CMS Line Yixiang 1A with Good Grain Quality

作　　者：江青山[1] 林纲[2] 赵德明[2] 李云武[2] 贺兵[2] 包灵丰[2] 杨从金[2] 

机构地区：[1]四川农业大学农学院,四川雅安625014 [2]宜宾市农业科学院,四川宜宾644600

出　　处：《杂交水稻》2008年第2期11-14,共4页Hybrid Rice

基　　金：国家“863”计划项目(2002AA2070002);国家科技部农业科技成果转化资金项目(02EFN215100541);四川省“十五”科技攻关项目(96A-01-01);四川省宜宾市重点科技计划项目(200101001)

摘　　要：宜香1A是宜宾市农业科学院用不育系D44A作母本,(D44B/N542)F3选株作父本测交并逐代回交转育而成的优质香稻不育系。宜香1A花粉败育彻底,育性稳定,不育株率和花粉败育度均为100%,农艺性状优良,异交习性好,配合力高,稻米品质优良,2000年7月通过四川省技术鉴定。由宜香1A所配组合在试验、示范中表现稻米品质优良、产量高、抗病性较强、适应性广等特点,到2007年底止,已有33个组合分别通过国家或省级品种审定,应用前景广阔。Yixiang 1A,developed by Yibin Agricultural Science Research Institute, is a new indica CMS line with fine grain quality and aroma derived from crossing the selected F3 plants of IM4B/N542 to D44A and through successive backcross and selection. It shows a complete and stable male sterility with 100% of sterile plants and pollen sterility. It has desirable agronomic and economical characters such as good plant type, high outcrossing rate, good grain quality and blast resistance. It was technically certified in Sichuan Province in July,2000. The F1 hybrids of Yixiang 1A showed such characteristics as fine grain quality, high yield, stronger disease resistance and wide adaptability in various trials and demonstrations. Up to now, there have been 33 hybrid combinations derived from Yixiang 1A which have been registered and released to commercial production at national or provincial level in China, indicating a good prospect for its wide extension.

关 键 词：杂交水稻 香稻 不育系 宜香1A 优质 选育 

分 类 号：S511.03[农业科学—作物学] S334