【摘要】 通过四个对生玉米自交系双列杂交F1对生频率和单株产量的结果分析 ,认为 :只要F1对生株率达到 5 0 %左右 ,单株产量达到 2 5 0克左右 ,生产上利用对生玉米杂种优势是完全可行的。更多还原

【Abstract】 It is complete possibal to utilize the hybrid superoristy of opposite corn in corn plant according to the opposite freqnency and the yield of sigle plant of diallel crossing F 1 from selfcross line of four opposite corn,and as long as the ratio of F 1 opposite plant and the yield of sigle plant arrived at approrimate 50% and 250 gram,sespectively.更多还原