盆栽小菊耐涝性研究+文献综述
毕业论文关键词：盆栽小菊；涝渍胁迫；形态变化；抗氧化酶
Waterlogging Tolerance of Potted Chrysanthemum
Abstract: This paper studies the waterlogging tolerance of four species of potted chrysanthemum cultivars (Zhongshanxuegui, Jinlinghonglian, Jinlinghongmei and Jinlingyangguang). Experiment by the observation of the root, stem, leaf morphology indicators and the determination of physiological indices, including leaf superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) activity and membrane lipid oxidation product malondialdehyde (MDA) content, chlorophyll content, soluble protein content, obtained the most tolerant species, while screening out suitable varieties of chrysanthemum which had high waterlogging tolerance in Shanghai region. The results showed that: the 16th day after waterlogging was critical day to identify the waterlogging tolerance. The root vigor of four species all declined significantly under waterlogging. Zhongshanxuegui and Jinlinghongmei had similar change in antioxidant enzyme activities, chlorophyll content and soluble protein content, the total average content were higher than these of Jinlinghonglian and Jinlingyangguang, and membrane lipid oxidation product malondialdehyde (MDA) content of Zhongshanxuegui and Jinlinghongmei was relatively low, and the data changes of the two species were also relatively small. The morphological changes under the waterlogging suggested that Zhongshanxuegui and Jinlinghongmei are the tolerant species, whereas Jinlinghonglian and Jinlingyangguang are the sensitive species.
Key Words: potted chrysanthemum; waterlogging stress; morphological indicators; antioxidant enzymes
目录
1 综述 1
1.1 背景 1
1.1.1 涝害的含义 1
1.1.2 盆栽小菊品种介绍 1
1.1.3 盆栽小菊发展前景 2
1.2 植物耐涝性研究进展 2
1.3 研究内容 3
1.4 本论文的研究目的与意义 3
1.4.1 研究目的 3
1.4.2 研究意义 4
2 材料与方法 5
2.1 实验材料 5
2.1.1 植物材料 5
2.1.2 基质材料 5
2.1.3 实验药品 5
2.1.4 辅助材料 6
2.2 实验方法 6
2.2.1 实验设计 6
2.2.2 测定指标 6
2.2.3 指标测定方法 7
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