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水稻的产量是由:单位面积的穗数×每穗颖花数×成熟率×千粒重的乘积所构成。在这四个因素中由于千粒重受栽培环境的影响小,所以产量是由单位面积的颖花数与成熟率的乘积,即是说,是由容器的容量与总碳水化合物量的关系所决定的。可是,在通常的情况下,这两者之间呈负相关,因而成为高产的最大障碍。所以,在单位面积颖花数多的条件下,如何提高成熟率,亦即增大同化作用,这是水稻栽培上极其重要的一个问题。
The yield of rice consists of the number of spikes per unit area × the number of spikes per spike × the maturity rate × the weight of thousand kernels. Because of the small effect of grain weight on the environment under cultivation, the yield is determined by the product of the number of flowers per unit area and the rate of maturity, that is, by the relationship between the capacity of the container and the total amount of carbohydrates . However, under normal circumstances, the two are negatively correlated and thus become the biggest obstacle to high productivity. Therefore, under the condition of a large number of spikes per unit area, how to increase the rate of maturity, that is, to increase the assimilation, is an extremely important issue in rice cultivation.