玉米自交系×大刍草远缘杂交蛋白质含量杂种优势研究初探  

Study on heterosis of protein content of distant crossing between maize inbred line and Zea.luxurians

作　　者：陈景堂[1] 祝丽英[1] 芦立婷[1] 宋占权[2] 黄亚群[1] 刘志增[1] 

机构地区：[1]河北农业大学农学院,河北保定071001 [2]保定师范专科学校,河北保定071051

出　　处：《西南农业学报》2005年第5期562-564,共3页Southwest China Journal of Agricultural Sciences

基　　金：河北省"十五"科技攻关项目(03220144D);河北农业大学博士基金;河北农业大学回国人员科研启动基金项目资助

摘　　要：经奈氏比色测定两组栽培玉米自交系×大刍草远缘杂种F1及其亲本蛋白质含量。结果,大刍草的含量最高,为21.9%,其余依次为亲本自交系4792×大刍草的远缘杂交种F1(16.9%)、亲本自交系3153(15.2%)、自交系3153×大刍草的远缘杂交种F1(13.6%)和亲本自交系4792(12%)。杂种优势分析表明,栽培玉米自交系×大刍草的杂种F1蛋白质含量表现负向中亲优势,甚至负向超亲优势,而且杂交的双亲蛋白质含量差异越大杂种优势表现越强,差异越小杂种优势越弱。Distant cross between maize inbred line （4792 and 3153） and Z.mixicana was done, and Colorimetry determine protein content on distant crossing progeny F1 and its parents were analyzed. The protein content of Z. mixicana was 21.9 %, which was the highest. Hybrid F1 maize 4792 and Z. mixicana, its protein content was 16.9 % . the protein content of maize 3153 was 15.2 %. while protein content of progeny F1（13.6 % ）was evident lower than that of its parents maize 3153 and Z.mixicana. the protein content of maize 4792 （12 % ） was the lowest . The results showed that the protein content of distant crossing progeny F1 was minus mid-parent heterosis, even was minus over-parent heterosis. The more difference parents had in protein content, the more heterosis would have.

关 键 词：玉米自交系 大刍草 远缘杂交 蛋白质含量 杂种优势 

分 类 号：S513[农业科学—作物学]