| 遮荫对半高丛越橘光合特性的影响 |
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| 引用本文： | 董丽华,张春雨,李亚东,刘海广,吴林,张志东.遮荫对半高丛越橘光合特性的影响[J].东北农业大学学报,2009,40(3). |
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| 作者姓名： | 董丽华 张春雨 李亚东 刘海广 吴林 张志东 |
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| 作者单位： | 1. 吉林农业大学园艺学院,长春,130118
2. 吉林大学植物科学学院,长春,130062 |
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| 基金项目： | 公益性行业科研专项经费,吉林省科技厅重点项目 |
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| 摘 要： | 以半高丛越橘品种"北陆"为材料,研究了遮荫处理对半高丛越橘光合特性的影响。结果表明,在全光照和半遮荫处理下,净光合速率(Pn)日变化为"双峰"曲线,具有光合午休现象,在全遮荫处理下,Pn日变化为"单峰"曲线;随着光照强度的减弱,越橘叶片的总叶绿素总量、叶面积以及栅/海值逐渐增加,而叶绿素a/b值和比叶重减少;同对照相比,半遮荫2处理的光合特性与全日照无明显差异,是较好的半高丛越橘露地栽培模式。
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| 关 键 词： | 越橘 遮荫 光合特性 |
Effects of shading on photosynthetic characteristics of half-highbush blueberry Northland |
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| DONG Lihua,ZHANG Chunyu,LI Yadong,LIU Haiguang,WU Lin,ZHANG Zhidong.Effects of shading on photosynthetic characteristics of half-highbush blueberry Northland[J].Journal of Northeast Agricultural University,2009,40(3). |
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| Authors: | DONG Lihua ZHANG Chunyu LI Yadong LIU Haiguang WU Lin ZHANG Zhidong |
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| Institution: | 1. College of Horticulture;Jilin Agricultural University;Changchun 130118;China;2. College of Plant Science;Jilin University;Changchun 130062;China |
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| Abstract: | The photosynthetic characteristics of blueberry under different shading treatments were studied using half-highbush blueberry cultivar Northland. The results showed that the diurnal variation of leaf net photo- synthetic rate (Pn) showed double-peak curve under full sun light and half shading with photosynthestic midday drop, and single-peak curve under full shading. With decreasing of light degrees, the content of the total chlo- rophyll, leaf area and the ration of the palisade tissue thickness to the spo... |
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| Keywords: | blueberry shading photosynthetic characteristics |
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