| 10种观赏竹的光合特性及叶绿素荧光特性研究 |
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| 引用本文： | 乔一娜,李云鸽,刘聘,刘凯,张晓庆,荣俊冬,陈礼光.10种观赏竹的光合特性及叶绿素荧光特性研究[J].热带作物学报,2020,41(7):1373-1379. |
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| 作者姓名： | 乔一娜 李云鸽 刘聘 刘凯 张晓庆 荣俊冬 陈礼光 |
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| 作者单位： | 1.福建农林大学林学院,福建福州 3500022.福建农林大学园林学院,福建福州 350002 |
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| 基金项目： | 福建农林大学科技发展资金项目“百竹园观赏竹生态适应性及净化环境功能研究”(KF2015084);福建省科技创新团队项目(118/KLA18069A) |
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| 摘 要： | 本研究以10种不同观赏竹为研究对象,分别对不同竹种的叶绿素、光合特性、叶绿素荧光特性进行测定和对比分析,并通过主成分分析法对10种不同观赏竹进行综合评价,进而筛选出满足城市绿化种植的优良高效竹种,也为不同观赏竹种的选育和园林绿化利用提供参考依据。结果表明：（1）在整个生长期内,佛肚竹（Bambusa ventricosa）的叶绿素含量最高,唐竹（Sinobambusa tootsik）最低;（2）在10种观赏竹中,金丝慈竹（Bambusa affinis）、花巨竹（Gigantochloa verticillata）、花孝顺竹（Bambusa multiplex f. Alphonse-karri）、花竹（Bambusa albo-lineata Chia）这4种竹子的净光合速率（Pn）值都在3.5 μmol/(m2?s)以上,而青丝黄竹（Bambusa eutuldoides var. viridi-vittata）的Pn值最低,仅为1.34 μmol/(m2?s)。不同观赏竹的净光合速率与蒸腾速率（Tr）、气孔导度（Gs）和水分利用率（WUE）之间存在显著的相关关系;（3）青丝黄竹、花巨竹、唐竹的PSⅡ潜在的光化学活性（Fv/Fo）和PSⅡ有效光化学量子效率（Fv/Fm）值相对较高,紫竹Phyllostachys nigra （Lodd. ex Lindl.）Munro]、花孝顺竹相对较低。同时花竹、唐竹、金丝慈竹都有较高的非光化学淬灭系数（qN）、光化学淬灭系数（qP）、PSⅡ光化学效率（Yield/ΦPSII）。由此可见,在相同生长环境下,不同观赏竹的光合利用能力、光合效率及光适应能力不同,且有显著差异。综合评价可知,花巨竹、金丝慈竹、佛肚竹为高光效竹种,光合适应性较强,适宜城市绿化种植。
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| 关 键 词： | 观赏竹 光合特性 叶绿素荧光 |
| 收稿时间： | 2019-10-15 |
Photosynthetic Characteristics and Chlorophyll Fluorescence Characteristics of Ten Ornamental Bamboo Species |
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| QIAO Yina,LI Yunge,LIU Pin,LIU Kai,ZHANG Xiaoqing,RONG Jundong,CHEN Liguang.Photosynthetic Characteristics and Chlorophyll Fluorescence Characteristics of Ten Ornamental Bamboo Species[J].Chinese Journal of Tropical Crops,2020,41(7):1373-1379. |
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| Authors: | QIAO Yina LI Yunge LIU Pin LIU Kai ZHANG Xiaoqing RONG Jundong CHEN Liguang |
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| Institution: | 1. College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China2. College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China |
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| Abstract: | Ten different ornamental bamboo species were selected to study the photosynthetic characteristics and chlorophyll fluorescence parameters of different bamboo species. Principal component analysis was used to comprehensively evaluate the species and to screen species whicn meeting urban greening cultivation. During the whole growth period, the chlorophyll content of Ambusa ventricosa was the highest, and that of Sinobambusa tootsik was the lowest. The Pn value of Bambusa affinis, Gigantochloa verticillata, Bambusa multiplex f. Alphonse-karri and Bambusa albo- lineata Chia was 3.5 μmol/(m 2?s) or more, and that of Bambusa eutuldoides var. viridi-vittata was 1.34 μmol/ (m2?s), the lowest. There was a significant correlation between net photosynthetic rate and transpiration rate (Tr), stomatal conductance (Gs) and water use efficiency (WUE) of different species. The potential photochemical activity (Fv/Fo) and PSII effective photochemical quantum efficiency (Fv/Fm) value of PSII of B. eutuldoides var. viridi-vittata, G. verticillata and S. tootsik were relatively high. Phyllostachys nigra (Lodd. ex Lindl.) Munro and B. multiplex f. Alphonse-karri were relatively low. B. albo-lineata Chia, S. tootsik and B. affinis had higher non-photochemical quenching coefficient (qN), photochemical quenching coefficient (qP) and PSII photochemical efficiency (Yield/ΦPSII). It could be seen that under the same growth environment, the photosynthetic utilization ability, photosynthetic efficiency and light adaptability of different ornamental bamboos were different, and there were significant differences. According to the comprehensive evaluation, G. verticillata, B. affinis and B. ventricosa are high-efficiency bamboo species, and the light is suitable for strong greening. |
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| Keywords: | ornamental bamboo photosynthetic characteristics chlorophyll fluorescence |
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