| 土壤水分胁迫对短葶山麦冬光响应特性的影响 |
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| 引用本文： | 范海兰,洪伟,吴承祯,李键,林晗,侯智勇.土壤水分胁迫对短葶山麦冬光响应特性的影响[J].福建林学院学报,2011,31(3):193-197. |
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| 作者姓名： | 范海兰 洪伟 吴承祯 李键 林晗 侯智勇 |
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| 作者单位： | 福建农林大学林学院,福建福州350002;福建省高校森林生态系统过程与经营重点实验室,福建福州350002 |
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| 基金项目： | 国家自然科学基金资助项目(31070606); 教育部博士点学科专项基金资助项目(20093515110006) |
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| 摘 要： | 以盆栽的短葶山麦冬为材料,研究不同土壤水分梯度即土壤含水量分别为土壤田间持水量的80％(CK)、65％(W1)、50％(W2)和35％(W3)条件下,短葶山麦冬光合作用—光响应特性.结果表明,当光合有效辐射高于200 μmol·m-2· s-1时净光合速率表现为CK ＞W2 ＞W1 ＞W3,水分胁迫处理降低了最大净光合...
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| 关 键 词： | 短葶山麦冬 水分胁迫 光响应 光合作用 |
Effects of soil water stress on the photosynthetic response of Liriope muscari |
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| FAN Hai-lan,HONG Wei,WU Cheng-zhen,LI Jian,LIN Han,HOU Zhi-yong.Effects of soil water stress on the photosynthetic response of Liriope muscari[J].Journal of Fujian College of Forestry,2011,31(3):193-197. |
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| Authors: | FAN Hai-lan HONG Wei WU Cheng-zhen LI Jian LIN Han HOU Zhi-yong |
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| Institution: | FAN Hai-lan1,2,HONG Wei1,WU Cheng-zhen1,LI Jian1,LIN Han1,HOU Zhi-yong1,2(1.College of Forestry,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China,2.Key Laboratory of Forest Ecological System Process and Management of Fujian Universities,China) |
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| Abstract: | Four different levels of water stress,mild water stress(W1),moderate water stress(W2),severe water stress(W3) and the control(CK) were applied to study the effects of water stress on the photosynthetic response of Liriope muscari under pot cultural condition by controlling soil water content.The results showed that net photosynthetic rate(Pn) was CK>W2>W1>W3 when PAR was above 200 μmol · m-2 · s-1.Water stress lowered the max net photosynthetic rate and apparent quantum efficiency and the decreasing amplitude of W3 was the biggest.W3 increased the light compensation point and light saturation point.The water use efficiency reached maximum at the 400 μmol · m-2 · s-1 of PAR under the different soil water moisture.50% and 35% of field water-holding capacity increased the water use efficiency of L.muscari. |
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| Keywords: | Liriope muscari(Decne ) Bailey water stress photosynthetic response photosynthesis |
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