据国内外有关资料显示,玉米单株增产潜力有限,要想大幅度提高玉米单位面积产量,增加单位面积的株数是必由之路。因此,我单位在育种基础材料组配,自交系的耐密性选择等方面也做了一些工作,目前有一批中早熟、耐密植、易脱水、品质优、抗倒性好的稳定株系陆续进入配合力鉴定阶段,该试验就是2013年在测交初比试验中表现优异的组合进行复试。 According to the relevant information at home and abroad, the yield potential of corn plants is limited. To greatly increase the yield per unit area of ​​corn, it is necessary to increase the number of plants per unit area. Therefore, my company also made some efforts in breeding basic materials and intimacy selection of inbred lines. At present, there are a number of stable lines that are premature, densely populated, easily dehydrated, good in quality and lodging-resistant One after another into the stage of appraisal of the combining ability, which is a retest of the combination which performed excellently in the early test of cross-test in 2013.