长穗柽柳种子形态特征与萌发特性研究

摘要

[目的]了解柽柳植物在自然条件下的萌发行为.[方法]以长穗柽柳为实验材料,观察研究种子形态与萌发特性.[结果]①长穗柽柳种子平均的长、宽、千粒重分别为1 011.96 μm、399.94 μm、38.66 mg;②自然务件下长穗柽柳种子平均的发芽卒、发芽势、发芽指数、发芽系数分别达到95.56%、46.67%、20.25、56.86;③各地理居群之间的种子形态及萌发特性没有显著性差异.[结论]该研究以期为长穗柽柳的引种繁育及沙丘植被保护提供参考.%[ Objective ] The aim was to study the germination behavior of Tamarix elongata Ledeb. under natural conditions. [ Method ] By using T. elongata as the experimental materials, the seed morphology and germination characteristics were observed and measured. [ Result ] ①T. elongata seed was 1011.96 μm in length and 399.94 μm in width, and the thousand-seed weight was 38.66 mg; ② the germination rate.germination energy, germination index and germination coefficient of T. elongata seeds were 95.56％, 46.67％, 20.25 and 56.86 respective ly; ③ there were no significant differences in morphology and germination characteristics among the three different geographical populatiom.[ Conclusion ]The present research would provide reference for the introduction and breeding of T. elongata as well as the protection of sand dune vegetation.