不同遮阴处理对大花萱草形态及生物量的影响

摘要

[目的]研究不同遮阴条件对大花萱草生长的影响.[方法]对3种不同大花萱草的品系进行遮阴处理,在生长季内对其形态及生物量进行观测.[结果]在40％光照条件下,3种大花萱草在形态上表现良好,观赏性较高；低于40％的透光率不利于其物质积累,生物增量减少,但根部增量总体大于叶片.[结论]大花萱草更适宜在40％以上的光照条件下作观赏地被.%[Objective] The aim was to understand the influences of different shading conditions on the growth of Hemerocallis middendorffii. [Method] The morphology and biomass of Hemerocallis middendorffii were observed under different shading treatments in the growing season. [Result] Three kinds of Hemerocallis mtddendorffii had better performances in 40% light codition.and they had better enjoyment;It's not good to the accumulation of material,and the biological increment reduced when the light transmission rate was less than 40% ,but the root increment was greater than the leaf. [Conclusion] Hemerocailis middendorffii were more suitable to be ornamental ground cover under more than 40% of the light conditions.