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夏高粱单位面积产量由每亩穗数、每穗粒数和千粒重三个因素构成。单位面积上的穗数和穗粒数越多,千粒重越高,产量就高。研究这三个因素互相适应、互相制约的关系,有助于认识夏高粱增产的规律,以便通过栽培措施来协调三者之间的关系,达到增产目的。1983、1984两年我们对夏高粱产量构成因素及适宜栽培密度进行了研究,以期为夏高粱生产起到一定的指导作用。
Summer sorghum yield per unit area by the number of spike per acre, grain number per spike and 1000 grain weight of three factors. The more spikes and grains per unit area, the higher the grain weight, the higher the yield. Studying the relationship between these three factors to adapt to and restrict each other helps to understand the law of summer sorghum yield increase so as to coordinate the three relations through cultivation measures and achieve the purpose of increasing production. In 1983 and 1984, we studied the yield components and appropriate planting density of summer sorghum, in order to guide summer sorghum production.