摘要
以长白山牛皮杜鹃为试材,研究比较了1 500、1 800、2 100、2 400m4个不同海拔高度牛皮杜鹃种群的叶片表面形态结构特征和叶片功能性状。结果表明:不同海拔高度的牛皮杜鹃叶片上表皮细胞随海拔高度的升高而排列比较疏松,叶片下表皮细胞排列比较有规则。叶干物质含量随海拔增加而增加,低海拔与高海拔的叶干物质含量差异显著;比叶面积随着海拔增加而减少,海拔1 800m叶片比叶面积低于其它3个海拔高度;叶厚随海拔增加而增加,海拔1 800m叶片厚度高于其它3个海拔。
Taking Rhododendron chrysanthum Pall. as material, the adaptation characteristic of leaves of Rhododendron chrysanthum Pall. populations at four altitudes （1 500,1 800,2 100,2 400 m） of Changbai Mountain were studied and compared. The results showed that leaf adaxial epidermal cells were looser with the altitudes increased and leaf lower epidermal cells were regular. Leaf dry matter content increased with altitude, and existed significant difference between low altitude and high altitude. SLA decreased with the altitudes. SLA of 1 800 m was lower than the other three altitudes. Leaf thickness increased with altitudes,and that of 1 800 m was thicker than the other three elevations.
出处
《北方园艺》
CAS
北大核心
2013年第19期80-83,共4页
Northern Horticulture
基金
吉林省教育厅科学技术研究资助项目(吉教科合字(2009)第270号)
吉林省科技发展计划资助项目(20130206060NY)
关键词
适应性结构
功能性状
不同海拔
牛皮杜鹃
adaptation characteristic
functional traits
different altitude
Rhododendron chrysanthum Pall.
