小麦的籽粒产量,在品种间差异悬殊,造成这种差异的原因是多方面的。人们对影响小麦籽粒产量的因素作了很多研究,但大量的工作都是从栽培的角度出发的,尤其是对水肥的研究资料十分丰富。气象因素对籽粒的影响,研究也不少,并在生产上起了重要的指导作用。但这些研究都较少说明,品种间籽粒产量的变异,在生理方面的反应,且往往缺乏系统性。在现代小麦生产和育种工作中,进一步提高粒重是重要目标之一。业已指 The grain yield of wheat varies greatly among breeds. The reasons for this difference are many. Much research has been done on the factors influencing wheat grain yield, but a great deal of work has been done from the perspective of cultivation. In particular, the research on water and fertilizer is very rich. Meteorological factors on the grain, the study is also a lot, and in the production played an important guiding role. However, few of these studies show that variation in grain yield among varieties, physiological responses, and often lack of systematicness. In modern wheat production and breeding work, to further increase the grain weight is one of the important goals. Has been referred to