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1974年我们研究了不同株型的四个水稻品种在不同施氮水平下的抗倒能力、叶片角度与透光关系、干物质积累和光能利用率的情况。试验结果证明:矮而叶片挺立的紧凑类型的品种不仅有耐肥、抗倒强、透光好的特性,而且具有后期光能利用率高的特点,因此干物质积累多,生产潜力较高。根据水稻株型在育种上进行高产品种选育和在栽培上进行高产栽培都具有实际的指导意义。
In 1974, we studied the lodging resistance of four rice cultivars with different plant types at different N rates, the relationship between leaf angle and light transmission, dry matter accumulation and light energy utilization. The test results showed that compact and short varieties of upright leaves not only have the characteristics of being resistant to fertilizer, strong anti-down, and good light transmission, but also have the characteristics of high utilization of light energy in the later period. Therefore, dry matter accumulates more and the production potential is higher. According to the type of rice in breeding high-yielding variety breeding and cultivation of high-yield cultivation have practical significance.