| CO2 和温度对网纹甜瓜群体光合作用的影响 |
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| 引用本文： | 牛庆良,黄丹枫,艾尔肯·牙生,陈春宏.CO2 和温度对网纹甜瓜群体光合作用的影响[J].园艺学报,2006,33(2):272-277. |
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| 作者姓名： | 牛庆良 黄丹枫 艾尔肯·牙生 陈春宏 |
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| 作者单位： | (上海交通大学农业与生物学院, 上海201101; 新疆农业科学院园艺作物研究所, 新疆830000; 上海农业科学院环境科学研究所, 上海201106) |
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| 基金项目： | 国家科技攻关项目;上海市农委重点项目 |
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| 摘 要： | 采用人工气候室和建立的作物群体光合作用测定分析体系, 研究了CO2、温度等环境因子对网纹甜瓜群体总光合速率( Pgc ) 的影响。结果表明, CO2 浓度升高显著提高了群体的初始光合效率(αc )和最大光合速率, 提高了甜瓜群体总光合速率, 当CO2 浓度由400 μmol·mol- 1增至700和1 000 μmol·mol- 1时, Pgc分别提高了30.1%和44.6% , 且强光照条件下, CO2 的促进效果更为明显; 温度对甜瓜群体光合作用影响明显, 高温降低了初始光化学效率, 在低CO2 浓度下提高了甜瓜群体的最大光合速率, 但高CO2 下受CO2 —温度互作的影响, 最大光合速率反而下降。初步确定了不同CO2 浓度和光照条件下获得最大群体光合速率的适宜温度。
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| 关 键 词： | 网纹甜瓜 群体光合作用 CO2 浓度 温度 |
| 文章编号： | 0513-353X（2006）02-0272-06 |
| 收稿时间： | 2005-10-15 |
| 修稿时间： | 2005-10-152005-12-27 |
Effects of CO2 and Temperature on Canopy Photosynthesis of Muskmelon |
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| Niu Qingliang,Huang Danfeng,Aierken·Yasheng,Chen Chunhong.Effects of CO2 and Temperature on Canopy Photosynthesis of Muskmelon[J].Acta Horticulturae Sinica,2006,33(2):272-277. |
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| Authors: | Niu Qingliang Huang Danfeng Aierken·Yasheng Chen Chunhong |
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| Institution: | (1 School of Agriculture and B iology, Shanghai J iaotong University, Shanghai 201101, China; 2 Insititute of Horticultural Crops,X injiang Academ y of Agricultural Sciences, X injiang 830000, China; 3 Environm ent Science Research Laboratories, ShanghaiAcadem y of Agricultural Sciences, Shanghai 201106, China) |
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| Abstract: | Calculation and analysis system were established for crop gross photosynthesis measurement in climate chambers and effects of climate factor on muskmelon (Cucumis melo var. reticulatus Naud. ) canopy photosynthesiswere studied. It indicated that elevated CO2 obviously increased gross photosynthesis ( Pgc ) ,especially under high radiation conditions. Pgc increased 30.1% and 44.6% when CO2 concentration rose from 400 to 700 and 1 000 μmol·mol- 1 respectively. Elevated CO2 also enhanced photochemical efficiency (αc ) and maximum gross photosynthesis rate ( Pgc, m ax ). Temperature had high influence on Pgc also, higher temperature reduced αc and Pgc, max increased under low CO2 condition, whereas it's different when CO2 concentration was heightened to a relative high level because of CO2—emperature interactions effect. Temperature that maximized Pgc at different CO2 and light conditions were calculated and determined as well in the experiment. |
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| Keywords: | Muskmelon Cucumis melo var reticulatus Naud Gross photosynthesis CO2 Temperature |
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