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作物产量的高低与光能利用的多少有直接的关系。株型育种就是改变植株的形态结构,提高对光能的利用率,选育早熟、高产、优质的新品种。自从水稻矮秆高产品种育成以来,国内外对株型育种已引起广泛的重视,在水稻、小麦、玉米等禾谷类作物方面并已取得了比较显著的成效。棉花是无限生长习性作物,具有单轴枝和合轴枝,与禾谷类作物有很大的不同,什么样的株型光能利用最好,是值得研究与探讨的问题。
The level of crop yield is directly related to the amount of light energy used. Plant type breeding is to change the morphological structure of plants, improve the utilization of light energy, breeding early, high yield, high quality new varieties. Since the development of rice dwarf high-yielding varieties, widespread attention has been paid to plant-type breeding at home and abroad. In rice, wheat, corn and other cereal crops, it has achieved remarkable results. Cotton is an unlimited growth habit of crops, with uniaxial and uniaxial branches, and cereal crops are very different, what kind of plant type light energy use is the best, is worth to study and explore the issue.