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重点研究了京郊通县地区不同灌水条件下冬小麦根冠的发育规律，根冠间的动态消长关系及对后期产量形成的影响程度及敏感性。结果表明：水分胁迫会引起根、冠功能降低，导致根、冠生长与干物质积累量下降。然而不同水分条件下根、冠的生长特征，根、冠自调节、自适应的功能表现却不同；前期受水分胁迫抑制，后期恢复供水时，“补偿生长”作用较突出；根长密度最大速率的剖面分布将随着生育阶段的增长由表层向底层转移。
The study focused on the development of root and shoot of winter wheat under different irrigation conditions in Tongxian County of Beijing, the relationship between the dynamic growth and decline of root and canopy, and the degree and sensitivity to the late yield formation. The results showed that water stress could cause the root and crown functions to decrease, resulting in the decrease of root and shoot growth and dry matter accumulation. However, under different water conditions, root and crown growth characteristics, root and crown self-regulation, self-adaptation function is different; early by water stress suppression, late recovery water supply, “compensatory growth” more prominent role; root length density maximum rate The profile distribution will shift from the surface layer to the bottom layer with the growth of the reproductive stage.