| 弱光对甜椒不同品种光合特性的影响 |
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| 引用本文： | 眭晓蕾,蒋健箴,王志源,朱雨杰.弱光对甜椒不同品种光合特性的影响[J].园艺学报,1999,26(5):314-318. |
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| 作者姓名： | 眭晓蕾 蒋健箴 王志源 朱雨杰 |
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| 作者单位： | 1. 中国农业大学蔬菜园艺系,北京100094
2. 北京市农林科学院,蔬菜研究中心,北京100089 |
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| 摘 要： | 以４个对光照强度敏感性不同的甜椒品种为试材，分别给予１００％、７０％和３５％光强处理。结果表明：７０％光强下甜椒产量显著提高，植株净光合速率最高，夜间呼吸速率最低。随光强的减弱，甜椒的光补偿点降低，而叶片叶绿素含量、捕光叶绿素ａ／ｂ蛋白复合体（ＬＨＣＰ）含量增加。叶片低温荧光发射光谱显示，反映激发能在两个光系统间分配情况的Ｆ６８６／Ｆ７４０比值先下降后又升高。对弱光适应性强的品种具有较低的光补偿点
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| 关 键 词： | 甜椒 弱光 光合特性 |
| 修稿时间： | 1999-01-05 |
Effect of Low Light Intensity on Photosynthetic Characteristics of Di fferent Sweet Pepper Cultivars |
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| Sui Xiaolei,Jiang Jianzhen,Wang Zhiyuan,Zhu Yujie.Effect of Low Light Intensity on Photosynthetic Characteristics of Di fferent Sweet Pepper Cultivars[J].Acta Horticulturae Sinica,1999,26(5):314-318. |
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| Authors: | Sui Xiaolei Jiang Jianzhen Wang Zhiyuan Zhu Yujie |
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| Abstract: | In this study,four cultivars of sweet pepper( Capsicum frutescens L.var. grossum Bailey)were cultivated under three levels of light intensity which were 100%,70% and 35% of the natural light intensity respectively.The results showed that the fruit yield,net photosynthetic rate were the highest and the night respiratory rate was the lowest under 70% light intensity.As the light intensity decreased,the light compensation point declined;the chlorophyll contents and LHCP relative contents increased;the F 686 /F 740 ratio of low temperature fluorescence emission in leaves firstly declined then ascended.Under low light intensity,there were lower light compensation point and night respiratory rate,less increasing contents of chlorophyll and LHCP in the low light tolerance cultivar,while the F 686 /F 740 ratio was changed obviously. |
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| Keywords: | Sweet pepper Low light intensity Photosynthetic characteristics |
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