外源性物质对乌桕抗寒性的影响

Effects of Exogenous Substances on Cold Resistance of Sapium sebiferum

乌桕是中国特有的经济树种,具有极高的观赏观值、经济价值。该文根据Ca2+与K+在植物抗性生理中的作用机理,并结合乌桕的生态习性进行了整个生长周期的抗性训练,探讨了在乌桕幼苗期、抚育期、落叶期使用外源物质提高其抗寒性的方法,从而打破树种地域性种植的限制,提升绿化效果。

Sapium sebiferum is a unique economic tree species in China,it has extremely high ornamental value and economic value.Based onthe mechanism of Ca2＋ and K＋ in plant resistance physiology,and combined with the ecological habits of Sapium sebiferum to carry out resistancetraining during the entire growth cycle,the methods were discussed that using exogenous substances to improve its cold resistance during seedlingstage,nursery stage and defoliation stage.Thereby,the restrictions of regional planting of tree species were broken and the greening effect was improved.