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| 遮荫对广东西部香根草光合特性及生长的影响 | |
| 引用本文： | 文军,刘金祥,赵玉红.遮荫对广东西部香根草光合特性及生长的影响[J].草原与草坪,2009(1):78-81. |
| 作者姓名： | 文军 刘金祥 赵玉红 |
| 作者单位： | 1. 西北师范大学,经济管理学院,甘肃,兰州,730070;甘肃农业大学草业学院,甘肃,兰州,730070 2. 湛江师范学院热带草业科学研究所,广东,湛江,524048 3. 甘肃农业大学草业学院,甘肃,兰州,730070 |
| 摘 要： | 研究了不同遮荫（0％，75％和94％）条件下对广东西部香根草光合特性和生长的影响。结果表明：遮荫导致叶片的光合速率下降，香根草光饱和点（LSP）和光补偿点（LCP）也有所降低，94％遮荫处理的光补偿点与对照差异极显著（P〈0．01），但是遮荫对表观量子效率（AQY）却有不同程度的提高。遮荫使香根草叶片中叶绿素a、叶绿素b和总叶绿素含量显著增加，75％和94％遮荫处理的叶绿素总量分别比对照增加了23．28％和19．40％。遮荫也使香根草的植株含水量显著（P〈0．05）增加，并且94％遮荫与对照差异极显著（P〈0．01）。 |
| 关 键 词： | 香根草 遮荫 光合特性 生长 |
Effect of shading on photosynthesis characteristics and growth of Vetiveria zizanioides in western Guangdong |
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| WEN Jun,LIU Jin-xiang,ZHAO Yu-hong.Effect of shading on photosynthesis characteristics and growth of Vetiveria zizanioides in western Guangdong[J].Grassland and Turf,2009(1):78-81. | |
| Authors: | WEN Jun LIU Jin-xiang ZHAO Yu-hong |
| Institution: | 1.Northwest Normal University;Lanzhou 730070;China;2.College of Pratacultural Science;Gansu Agricultural University;3.Institute of Tropical Pratacultural Science;Zhanjiang Normal College;Zhanjiang 524048;China |
| Abstract: | The effect of 3 levels of shading(0,75% and 94% shading) on physiological characteristics and growth of Vetiveria zizanioides in the western Guangdong was studied.The results showed that the shading treatment decreased the photosynthesis rate.It also caused a decrease of light saturation point(LSP)and the light compensation point(LCP)to some degree,and the light compensation point(LCP)was significantly different(P<0.01) between the 94% shading treatment and the control,but the apparent quantum efficiency(AQ... |
| Keywords: | Vetiveria zizanioides shading photosynthesis character growth |
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