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Research on the Photosynthesis Ability of Pairs polyphylla var. yunnanensis from Different Areas
Wang Yihao, Li Shichang, Liu Chunlu, Zhao Yanli, Zheng Guowei, Xu Furong
PDF(1341 KB)
PDF(1341 KB)
Research on the Photosynthesis Ability of Pairs polyphylla var. yunnanensis from Different Areas
To study the adaptability of Pairs polyphylla var. yunnanensis and provide a theoretical basis for its introduction, planting and resource protection, we investigated the photosynthetic capacity of P. polyphylla var. yunnanensis from different growth areas and different sources from the same area. LI-6800 photosynthesis instrument was used to detect the photosynthetic capacity of the same variety from different areas and different sources from the same area. The results show that the photosynthetic capacity of P. polyphylla var. yunnanensis collected from western Yunnan is higher than that from southeastern Yunnan, and the difference is great. There is no significant difference in photosynthetic rate of P. polyphylla var. yunnanensis among different sources in southeastern Yunnan, but the value is lower than that in western Yunnan. However, the leaf stomatal conductance (Gs), transpiration rate (Tr) and water use efficiency (WUE) of P. polyphylla var. yunnanensis from different habitats are lower than those of local varieties, while the ratio of intercellular CO2 concentration to environmental CO2 concentration (Ci/Ca) was higher than that of local varieties, and the photosynthetic capacity of transplanted varieties is lower than that of local varieties. The study shows that the photosynthetic capacity of P. polyphylla var. yunnanensis in western Yunnan is stronger than that in southeastern Yunnan, especially in Yongping County of Dali prefecture. However, the photosynthetic capacity and water use efficiency of the transplanted varieties are lower than those of the local varieties. So in the cultivation of Pairs polyphylla var. yunnanensis, the cultivated local varieties should be selected for artificial expansion.
Pairs polyphylla var. yunnanensis / geographical origin / resource protection / provenance / photosynthesis / light response curve {{custom_keyword}} /
图2 石菖蒲精油和艾叶精油对4种真菌的抑制作用1：尖孢镰刀菌；2：腐皮镰刀菌；3：毁坏柱孢霉；4：胶孢炭疽菌。A：阴性对照；B：石菖蒲精油处理组；C：艾叶精油处理组；D：阳性对照组。精油浓度为50 mg/mL，恶霉灵浓度为5 mg/mL |
表1 石菖蒲精油、艾叶精油及恶霉灵两两组合FICI结果 |
| 病原菌 | 石菖蒲+艾叶 | 石菖蒲+恶霉灵 | 艾叶+恶霉灵 |
|---|---|---|---|
| 尖孢镰刀菌 | 0.5625（加和） | 0.5625（加和） | 0.5625（加和） |
| 腐皮镰刀菌 | 1.0625（无关） | 1.000（加和） | 0.7500（加和） |
| 毁坏柱孢霉 | 1.0625（无关） | 1.0625（无关） | 1.1250（无关） |
| 胶孢炭疽菌 | 1.0625（无关） | 1.1250（无关） | 1.0625（无关） |
| 注：FICI≤0.5，协同；0.5<FICI≤1.0，加和；1.0<FICI≤4.0，无关；4.0<FICI，拮抗。 |
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PDF(1341 KB)
图1 石菖蒲和艾叶中药材图2 石菖蒲精油和艾叶精油对4种真菌的抑制作用图3 石菖蒲精油和艾叶精油对4种真菌的抑制率图4 石菖蒲精油和艾叶精油GC-MS化学成分分析图5 精油及其组分的MIC测定
表1 石菖蒲精油、艾叶精油及恶霉灵两两组合FICI结果/
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