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玉米杂交种掖单2号(鲁玉2号)从推广到现在,经历了一个兴衰历程。该品种杂交优势强,适应性广,宜于密植,光能利用率高,棒大粒大,成熟较早,不但产量高,而且种皮薄,品质好。推广速度快,种植时间长,在我国玉米生产史上写下了辉煌的一页。由于种植时间较长,繁育代数多,自然变异,人为混杂等原因,种子的种性和抗逆性难免有所降低,整齐度明显下降。该品种植株较高,气生根较少,结穗部位较高,倒伏现象时有
Yedan No. 2 corn hybrid (Luyu 2) from promotion to the present, has experienced a rise and fall process. The hybrids have strong heterosis, wide adaptability, suitable for close planting, high utilization of light energy, large sticks and large grains, and earlier ripening. The yield is high, the seed coat is thin and the quality is good. Promote speed, planting a long time, in the history of corn production in China wrote a brilliant page. Due to the long planting time, breeding algebra and more, natural variation, artificial mixed and other reasons, the seeds of seed resistance and resistance will inevitably be reduced, the uniformity of decreased significantly. The varieties of plants higher, less air root, ear parts higher, the phenomenon of lodging