摘要：越南青冈与毛叶青冈同是壳斗科青冈属常绿乔木。越南青冈分布局限，为极危种，而同域毛叶青冈分布较为广泛，两者之间种存在自然杂交。本论文以越南青冈和毛叶青冈为研究对象,通过进行对两种青冈种子萌发和幼苗生长观测试验，对比其生长特性。结果表明:越南青冈与毛叶青冈在幼苗时期形态较为相似，不易区分，但在生长于生理特性方面还是略有不同的。例如毛叶青冈的株高及茎粗增长趋势变化较为平稳，而越南青冈株高及茎粗增长趋势的变化较为明显。5162
关键词： 越南青冈；毛叶青冈；苗期；生长特性
Comparison of Seeding stage growth characteristic in Cyclobalanopsis austrocochinensis and Cyclobalanopsis kerrii
Abstract：Cyclobalanopsis austrocochinensis and Cyclobalanopsis kerrii are both  evergreen treeof Fagaceae Cyclobalanopsis.Cyclobalanopsis austrocochinensis distributed restrictively in North Vietnam and South West of China with only 3 populations and it is a critically endangered species. Cyclobalanopsis kerri is a wide spread common species.Furthermore,and there is a natural hybrid between the two species.This study is about Cyclobalanopsis austrocochinensis and Cyclobalanopsis kerrii,and to compare the growth characteristic of the two species through research on characteristic of seed germination and seedling growth.The results show that,although
The morphology response of Cyclobalanopsis austrocochinensis and Cyclobalanopsis kerrii are familiar in their seeding stage，there are some differences between Cyclobalanopsis austrocochinensis and Cyclobalanopsis kerrii in growth characteristic. The trend growth of heights, diameters of Cyclobalanopsis kerrii is steady，but the trend growth ofThe heights, diameters of Cyclobalanopsis austrocochinensis is not.

Key Words: Cyclobalanopsis austrocochinensis; Cyclobalanopsis kerrii;Seeding stage;growth characteristic
目  录
1.绪论3
1.1青冈属植物概述3
1.1.1青冈属植物的分类3
1.1.2我国青冈属资源的综合利用3
1.1.3青冈属植物在国内的研究和应用3
1.2越南青冈与毛叶青冈概述4
1.2.1越南青冈的生态习性4
1.2.2毛叶青冈的生态习性5
1.2.3越南青冈国内外研究现状6
1.3越南青冈的研究意义7
2.实验材料与方法8
2.1实验材料8
2.2实验方法8
2.2.1越南青冈及毛叶青冈种子育苗试验8
2.2.2越南青冈与毛叶青冈苗期基本生长量（株高、叶片数、茎粗）.8
2.2.3叶绿素含量测定8
2.2.4气孔密度.9
2.2.5叶绿素荧光和快速光响应曲线的测定.9
3.结果与分析10
3.1越南青冈与毛叶青冈的种子出苗率10
3.1.1结果分析.10
3.2越南青冈与毛叶青冈苗期基本生长量.10
3.2.1株高分析比较10
3.2.2叶片数分析比较11
3.2.3茎粗分析比较12
3.2.4侧枝分析比较12
3.2.5越南青冈与毛叶青冈苗期形态13
3.3叶绿素含量14
3.3.1叶绿素含量14
3.3.2相对叶绿素15
3.4气孔密度分析.16
3.5叶绿素荧光和快速光响应曲线的分析17
3.5.1快速光响应曲线比较.17
3.5.2快速光响应曲线参数比较.20
4.讨论21
5.结论22
6.致    谢23
7.参考文献24

1绪论
1.1 青冈属植物概述
1.1.1 青冈属植物的分类
    青冈属（Cyclobalanpsis）为壳斗科常绿树种，约有110-150种, 主要分布在东南亚及东南亚热带常绿阔叶林及季节性雨林中[1]。我国有77种及3变种，主要分布在秦岭、淮河流域以南各省区[2]。由于青冈属种类繁多, 类群间重要分类形态性状上存在重叠, 镶嵌, 故其分类相当困难和混乱。
1.1.2我国青冈属资源的综合利用
1  树皮 越南青冈和毛叶青冈苗期生长和生理特性比较:http://www.751com.cn/shengwu/lunwen_2105.html