小麦温光型两系恢复系MR168的选育与利用初报  

Breeding and Application of Thermo-photo-sensitive Wheat Restore Line MR168

作　　者：李生荣[1] 杜小英[1] 陶军[1] 周强[1] 任勇[1] 欧俊梅[1] 雷加容[1] 李太军[1] 

机构地区：[1]四川绵阳市农业科学研究所,绵阳621023

出　　处：《植物遗传资源学报》2009年第2期306-308,共3页Journal of Plant Genetic Resources

基　　金："十五"国家"863"计划(2002AA207004);四川省"十一五"作物育种攻关项目(2006YZGG-3);四川省农业厅重点资助项目

摘　　要：利用不同生态区冬、春小麦地理远缘杂交,育成适应西南冬麦区生态条件的温光型两系恢复系材料MR168。其主要特点是早熟,分蘖力较强,成穗率高;株高适中,穗大粒多,穗层整齐,穗子方正,开花期较集中,花药较大且外露率高;后期落黄好,灌浆速度快;高抗条锈病和白粉病。经初步利用表明,MR168所配组合对早春低温具有较强的抵抗力,不同年份其杂种一代结实正常,丰产性好,适应性广,抗病力强,兼抗条锈病和白粉病,具有较好的应用前景。MR168 was a new restore line of thermo-photo-sensitive male sterile wheat and adaptable to southwest,which was bred by crossing winter wheat and spring wheat of different ecotope. It was characteristic of early maturity, high tillering ability, high spike rate, suitable plant height, big and quadrate spike, more kernels per spike, regular spike layer, blooming stage concentration, big anther and high emerge rate, maturate fast at the late period of duration and high resistance to stripe rust and powdery mildew. The preliminary studies showed that F~ hybrids made of MR168 had high resistance to low temperature at early spring and completely normal fertility at different years. In addition,the F1 hybrids has more characteristics such as high yield,wide adaptability and resistant to both stripe rust and powdery mildew. MR168 shows a good prosperity in production application.

关 键 词：小麦 温光敏 恢复系 MR168 选育 利用 

分 类 号：S512.1[农业科学—作物学]