论文部分内容阅读
通过对 1986~ 1999年玉米杂交种区域试验早熟组材料汇总结果分析 ,提出河南省早熟玉米高产育种目标 :玉米产量目标应达到 75 0 0kg/hm2 以上 ;穗行数 14~15行 ;行粒数 35~ 37粒 ;千粒重 2 90~ 310 g ;出籽率 86 %~ 88%。选育出品质优 ,抗逆性较好 ,株高为 2 40~ 2 5 5cm的早熟优良玉米品种为宜。
Based on the summary of the early maturing group of maize hybrids from 1986 to 1999, the paper put forward the goal of breeding high-yielding maize in Henan Province: the goal of maize yield should be above 75 0kg / hm2; the number of ear rows should be 14 to 15; 35 to 37 grains; grain weight 2 90 ~ 310 g; seed yield of 86% to 88%. Breeding good quality, resistance is good, height of 2 40 ~ 2545cm precocious fine varieties of corn is appropriate.