冬青属植物的叶形态及光合能力的研究
毕业论文关键词：冬青属植物；叶形态；光合能力
Study on leaf morphology and photosynthetic capacity of several plants of the genus Ilex
Abstract: Ilex is one of the most important genus in aquifoliaceae. There are many different kinds of plants of the Ilex. Due to the characteristics of the four seasons evergreen and long persistent fruit, become a tree species with high ornamental value, more and more people pay attention to the Ilex, and is used for urban greening. At present, For Ilxe photosynthetic capacity research is few. In this paper, we studied leaf morphology and photosynthetic capacity of four species of Ilex. I.cornuta, I.cornuta varfortunei, I.crenata and Hybrid Ilex，Determination of the relative chlorophyll content, net photosynthetic rate and transpiration rate，record the data. Research in the relationship between the chlorophyll content and photosynthetic rate of plant, the comparison of different varieties of chlorophyll. Comparing the photosynthetic rate of different varieties. Through the research get the overall evaluation of growth adaptability, in-depth understanding of Ilex, the better use of landscaping.
Keywords: Ilex; leaf morphology; photosynthetic capacity
目录
引言 1
1 课题研究目的和意义 1
2 文献综述 2
2.1 国内外研究现状与进展 2
2.1.1国外研究现状 2
2.1.2国内研究现状 2
2.2冬青属植物介绍与地理分布 2
2.2.1 冬青属植物介绍 2
2.2.2 冬青属植物地理分布 3
2.3冬青属植物的生理研究 3
2.3.1 抗寒性 3
2.3.2抗旱性 3
2.3.3 抗涝性 4
2.3.4光合能力 4
2.4 叶绿素的形成及条件 5
2.5 影响光合作用的因素 5
2.5.1 影响光合作用的内部因素 5
2.5.2 影响光合作用的外部因素 6
2.6冬青属植物的园林应用 6
2.6.1 观赏价值 6
2.6.2应用形式 6
2.6.3应用范围 7
3 研究方案 7
3.1课题研究目的和主要内容 7
3.1.1 课题研究目的 7
3.1.2 主要内容 7
3.2课题的调查（实验）方法 8
3.2.1形态指标、生长情况及物候的观察 8
3.2.2 相对叶绿素测定 8
3.2.3光合速率的研究 8
4 实验结果 8
4.1 形态观察与物候数据 8
4.1.1 形态观察 8
4.1.2 物候数据 10
4.2 相对叶绿素含量测定数据 13
4.3 光合能力研究相关数据 13
5讨论与结论 17