| 水分胁迫对甘薯叶绿素荧光和光合特性的影响 |
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| 引用本文： | 张云华,王荣富,阮 龙.水分胁迫对甘薯叶绿素荧光和光合特性的影响[J].中国农学通报,2005,21(8):208-208. |
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| 作者姓名： | 张云华 王荣富 阮 龙 |
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| 作者单位： | 1. 安徽农业大学生命科学学院,合肥,230036
2. 安徽农业科学院,合肥,230031 |
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| 基金项目： | 安徽省自然科学基金项目“水稻光抑制和强光适应机制”(01041106)，校长青年基金“水分胁迫条件下不同甘薯品种的光合特性的研究”(0400112)资助 |
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| 摘 要： | 以甘薯品种皖84-559，徐州18，为材料，测定功能叶片的光合和叶绿素荧光参数的变化。水分胁迫下，徐州18叶绿素含量、光合速率、PSⅡ原初光化学效率（Fv/Fm）和光化学猝灭系数（qP）的下降较少；非光化学猝灭系数（qN）增加较少。表明徐州18在水分胁迫条件下，光合机构受破坏较轻，其吸收的光能能较多的用于光化学转化能力，通过热耗散的能量较少。
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| 关 键 词： | 水分胁迫 甘薯 光合 叶绿素荧光 |
| 收稿时间： | 2005-04-08 |
| 修稿时间： | 2005-04-082005-04-14 |
Effects of Water Stress on Chlorophyll Fluorescence and Photosynthesis Characteristics in Sweet Potato(Ipomoea Batatas Lam.) |
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| Zhang Yunhu,Wang Rongfu,Ruan Long.Effects of Water Stress on Chlorophyll Fluorescence and Photosynthesis Characteristics in Sweet Potato(Ipomoea Batatas Lam.)[J].Chinese Agricultural Science Bulletin,2005,21(8):208-208. |
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| Authors: | Zhang Yunhu Wang Rongfu Ruan Long |
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| Institution: | (1College of Life Sciences, Anhui Agriculture University, Hefei 230036; 2Anhui Academy of Agricultural Sciences, Hefei 230031) |
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| Abstract: | Using sweet potato cultivars Xuezhou18 and Wan84-559 as materials, changes of photosynthesis and chlorophyll fluorescence parameters were measured. Under water stress, The decrement of contents of chlorophyll , PSⅡprimary photochemical efficiency（Fv/Fm）and photochemical quenching coefficient (qP) were less; increment of non-photochemical quenching coefficient（qN）were less in Xuezhou18. The above results suggested that damage of photosynthetic apparatus were lighter; more light energy absorbed by Xuezhou18 was converted into chemical energy and less light energy was dissipated through thermal energy. |
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| Keywords: | Water stress Sweet potato Photosynthesis Chlorophyll fluorescence |
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