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玉米亲本(原种)生活力较弱,自身产种量偏低,繁殖系数不高。一方面如果遇到灾年,亲本种子往往不足。另一方面由于昆虫串粉等原因造成种性退化。为了解决上述问题,我所利用本地区自然优势,一是在低热河谷区开展玉米冬繁工作,加速玉米亲本繁殖,保证夏播制
Maize parents (original species) weaker viability, their own production is low, breeding coefficient is not high. On the one hand, in the event of a disaster, the parents’ seeds are often inadequate. On the other hand due to insect powder and other causes of species degradation. In order to solve the above problems, I make use of the natural advantages of the region. The first is to carry out winter and winter maize work in the valley of the low-heat valleys, speed up the propagation of maize parents, and ensure summer sowing