土壤水分调控对冬小麦水分利用特性及产量的影响

Effects of Soil Water Operation on Water Using Traits and Yield

综述了土壤水分对冬小麦水分利用特性及产量的影响.我国麦区时常出现干旱,由于土壤水分缺少而使根系吸水区域向下扩展,提高了土壤水分的利用率;同时,土壤水分缺少也影响了器官生长,使叶面积减小,群体叶片光合性能下降,土壤水分缺少也使开花后的光合产物减少,灌浆物质不足,从而造成减产.

In this paper, the effects of soil water on water using traits and yield. In recent years, the frequently happened soil water stress in dry land field. The influences of water stress on the growth of organ led to smaller leaf area, and poorer photosynthetic performancesin community. Soil water stress also reduced photosynthetic production after flowering, leading to insufficient grain filling matters, so that the yield decread.