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进入80年代，我国水稻从提高光能利用率出发进行理想株型育种，逐渐形成了丛化育种理论，并取得了很大成绩。我所也先后育成了垦稻6号、垦盯一815等丛生速长型（即前期繁茂，后期株型收敛）水稻新品种（系）。由于丛生速长型水稻苗期生长快、叶片长、生长繁茂，常因播种量大、
Into the 1980s, China’s rice from the improvement of light energy utilization rate of ideal plant type breeding, and gradually formed a plexus breeding theory, and achieved great success. We have also cultivated new rice varieties (lines) such as Kenyao No.6 and Kenyao-815. Due to the rapid growth of rice cluster seedling rapid growth, long leaves, the growth of lush, often due to large seeding,