绒毛番龙眼种子萌发生态特性的研究  

Ecological characteristics of seed germination of Pometia tomentosa

作　　者：文彬[1] 殷寿华[1] 兰芹英[1] 杨湘云[1] 

机构地区：[1]中国科学院西双版纳热带植物园,云南勐腊666303

出　　处：《广西植物》2002年第5期408-412,407,共6页Guihaia

基　　金：中国科学院 KZ95 1- A1- 10 4课题

摘　　要：就温度、光照、土壤水分条件对绒毛番龙眼 ( Pometia tom entosa( Bl.) Teysm.et Binn.)种子萌发的影响及种子寿命进行了研究 ,结果表明 ,绒毛番龙眼种子萌发的适宜温度为 2 0～ 35°C,最适温度为 30°C;周期性光照条件下的萌发优于全黑暗条件 ;适宜土壤含水量为 2 0 %～ 70 % ,最适为 6 0 % ;在室内自然摊放条件下 ,9d后发芽率减半 ,16 d后完全丧失发芽能力。研究认为 ,目前绒毛番龙眼的濒危状态主要是由于滥砍乱伐和森林破坏造成的 ,由于其种子具有顽拗性种子的一些特点 ,该物种宜采取活体保存的方法 ,以就地保护为主 ,活植物迁地保护为辅。The studies on the germination of seeds of Pometia tomentosa(Bl.)Teysm. et Binn. influenced by the temperature,the illumination and soil moisture content as well as its seed longevity were carried out,which indicated that the favorable temperature for their germination was 20～35 °C,and the optimum temperature was 30 °C;The condition of periodic alternation of illumination and darkness was better than that of full darkness;The favorable soil moisture content was 20%～70% while the optimum one was 60%;Under the condition of open storage in room temperature,their germination rate decreased to a half within 7 days and to nought within 15 days. It seemed that the denudation and deforestation endanger Pometia tomentosa severely. For some recalcitrant properties of its seeds,the protection of this species depends on in-situ conservation supplemented with ex-situ conservation of living plants.

关 键 词：绒毛番龙眼 种子萌发 生态特性 无患子科 常绿乔木 

分 类 号：Q949.755.5[生物学—植物学] Q945.65