【作者】 陈景堂； 祝丽英； 芦立婷； 宋占权； 黄亚群； 刘志增；

【Author】 CHEN Jing-tang~1 ZHU Li-ying~1 LU Li-ting~1 SONG Zhan-quan~2 HUANG Ya-qun~1 LIU Zhi-zeng~1 1.College of Agronomy,Agricultural University of Hebei,Heibei Baoding 071001,China; 2.Baoding Teachers College,Heibei Baoding 071051,China

【机构】 河北农业大学农学院； 保定师范专科学校；

【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。更多还原

【Abstract】 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 heterusis would have.更多还原