| 遮光对紫叶加拿大紫荆光合速率及叶绿素荧光参数的影响 |
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| 引用本文： | 张依,卓丽环,汪成忠. 遮光对紫叶加拿大紫荆光合速率及叶绿素荧光参数的影响[J]. 河北农业大学学报, 2009, 32(6) |
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| 作者姓名： | 张依 卓丽环 汪成忠 |
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| 作者单位： | 东北林业大学,园林学院,黑龙江,哈尔滨,150040;东北林业大学,园林学院,黑龙江,哈尔滨,150040;上海农林职业技术学院,上海,201600 |
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| 基金项目： | 彩叶树木引种适应性及色彩表现的研究 |
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| 摘 要： | 研究了遮光30%、60%、80%和全光照处理(CK)对紫叶加拿大紫荆(Cercis canadensis‘Forest Pansy’)叶面积、叶片色素含量、净光合速率以及叶绿素荧光参数的影响。结果表明:随着遮光度增加,叶片色素含量增加,叶绿素a/b减小;叶片净光合速率(Pn)、蒸腾速率(Tr)下降,Pn、Tr日变化均呈单峰曲线;叶绿素荧光参数Fv/Fm和Fv/Fo随着遮光程度的增加而降低。说明紫叶加拿大紫荆有一定的耐荫性。
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| 关 键 词： | 紫叶加拿大紫荆 遮光 色素 光合作用 叶绿素荧光 |
Effects of shade treatments on net photosynthetic characteristics and chlorophyll fluorescence parameters of Cercis canadensis'Forest Pansy' |
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| ZHANG Yi,ZHUO Li-huan,WANG Cheng-zhong. Effects of shade treatments on net photosynthetic characteristics and chlorophyll fluorescence parameters of Cercis canadensis'Forest Pansy'[J]. Journal of Agricultural University of Hebei, 2009, 32(6) |
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| Authors: | ZHANG Yi ZHUO Li-huan WANG Cheng-zhong |
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| Affiliation: | ZHANG Yi1,ZHUO Li-huan1,2,WANG Cheng-zhong1(1.College of L,scape , Architecture,Northeast Forestry University,Harbin 150040,China,2.Shanghai Vocational Technical College of Agriculture & Forestry,Shanghai 201600,China) |
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| Abstract: | Pigment content,net photosynthetic rate(Pn),transpiration rate(Tr) and chlorophyll fluorescence of leaves in Cercis canadensis'Forest Pansy' were studied to investigate the effect of different shading treatments(CK,30%,60% and 80%)on 'Forest Pansy' seeding.With the increasing of sun-shading,the pigment content increased,whereas leaf net photosynthetic rate(Pn),transpiration rate(Tr) and the chlorophyll fluorescence parameters(Fv/Fm and Fv/Fo) decreased.Both diurnal variation curve of net photosynthetic rate... |
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| Keywords: | Cercis canadensis 'Forest Pansy' shading pigment photosynthesis chlorophyll fluorescence |
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