近几年来,在作物高产生理的研究中,逐渐着重于有机物的运转与种子灌浆过程的探索,其原因在于粮食作物,特别是稻麦等作物的单位面积产量,决定子每亩穗数、每穗实粒数与千粒重。试验表明,每亩穗数可以通过插秧本数或播种量而适当调节;每穗实粒数也可在一定程度上通过肥水管理控制花器官分化而有所提高;籽粒的重量虽然也可通过栽培管理措施使之增加,但以其因素复杂,效果迄不理想。另一方面,粮食作物的经济产量与生物学产量的比值一般仍嫌偏低。因之,从植物生理角度探明作物营养生长与生殖生长之间的关 In recent years, in the research of high yield physiology of crops, the research on the operation of organics and the process of seed filling has been gradually put forward. The reason lies in the yield per unit area of ​​crops such as grain and rice, Spike grain and 1000 grain weight. Experiments show that the number of spikes per acre can be properly adjusted by transplanting the number or sowing; grain number per spike can also be increased to some extent through the fertilizer and water management to control flower organ differentiation; although the weight of the grain can also be managed through cultivation Measures to make it increase, but its complex factors, the effect has been unsatisfactory. On the other hand, the ratio of economic output to biological output of food crops is generally still too low. Therefore, from the point of view of plant physiology, the relationship between vegetative and reproductive growth of crops is clarified