红藤种子储藏条件的初步研究

Preliminary Study on the Storage Conditions for the Seeds of Daemonorops margaritae

红藤(Daemonorops margaritae(Hance)Becc.),俗名黄藤,属棕榈科有刺攀缘藤本植物,是我国重要的商品藤种之一。天然分布于华南地区的海南省和广东、广西南部地区,分布海拔为0～1200m,是仅分布于我国的特有藤种。但由于对野生资源的过度开发利用,目前天然资源已近枯竭,亟待发展人工栽培。红藤种子在自然条件下容易丧失活力,如即采即播,发芽率低且极不整齐,发芽期可长至10～12个月,甚至更长,致使苗木来源缺乏,价格较高,这势必限制人工栽培的推广。因此,提高红藤种子发芽率,促使种子发芽整齐和降低苗木成本,已成为急需解决的生产问题。本试验旨在探索种子储藏温度和湿度对种子发芽率的影响,以便为生产上采种、运输和育苗提供科学依据。

This paper deals with the effect of storage conditions on vigor of seed of Daemonorops margaritae (Hance) Becc. Seven levels of moisture content and two temperature treatments of each were conducted with coconut dust as storage material. The results showed that the seeds could be controlled in their safety moisture content (29 %~31 %) when they were stored in the material contained moisture content of 50 %~65 % at 15℃. In comparison with germination and moisture content of seeds, there were significant differences among the treatments; the seeds, stored in the material with moisture content of 55 % and 65 % at 15℃, could be able to keep their germination more than 65 % for six months after storing, which were 4.0 and 4.5 times higher than that of seeds storing in the condition of room temperature (18°~25℃).