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在我国水稻生产中,许多高产地区把争取大穗作为高产的重要栽培途径,把选育大穗作为育种方向。近年来我国推广的杂交水稻,具有穗大粒多的特点,每穗粒数显著多于常规稻,大田生产正是利用这一优势夺取高产。在日本近年来也有人对多穗型栽培途径提出反对意见,主张以增加粒数和提高
In the rice production in our country, many high-yielding areas have made the fight for big ears as an important cultivation method for high-yielding, and the big-spike selection breeding direction. In recent years, the hybrid rice popularized in our country has the characteristics of large spike and large grain, and the grain number per spike is significantly more than that of conventional rice. The production in the field is to utilize this superiority to seize high yield. In Japan in recent years, some people have raised objections to the cultivation method of the multi-spike type, advocating increasing grain number and increasing