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前已述及,单位面积上水稻产量库的大小取决于总颖花数和每朵颖花体积的乘积,据此,栽培上通过增加颖花数或扩大颖花体积都可以达到增大产量库的目的。不过,就一定的品种而言,颖壳的形状与大小是固有的特征,在不同栽培条件下比较相对稳定,其最大变幅一般不致超过5％,要改变颖壳的形状或增大颖花的体积,主要应通过育种途径来解决。但单位面积上的颖花数则不然,常因栽
As mentioned above, the size of the rice yield base per unit area depends on the product of the total number of spikes and the volume of each spikelet. Accordingly, by increasing the number of spikes or expanding the volume of spikelets, the yield base can be increased the goal of. However, for a certain variety, the shape and size of the glume shell are inherent features and are relatively stable under different cultivation conditions. The maximum amplitude generally does not exceed 5%. To change the shape of the glume shell or to increase the spikelet Of the volume, mainly through breeding channels to solve. However, the number of spikes per unit area is not the case, often due to planted