遮荫对10种地被植物光合特性的影响  

THE LMPACT OF SSHADE ON PHOTOSYNTHETIC CHARACTERISTICS OF TEN GROUND COVERING PLANTS

作　　者：李高[1,2] 杜玉玲 赵鸿彬[3] 

机构地区：[1]北京市园林管理局颐和园管理处,北京100091 [2]内蒙古农业大学农学院,呼和浩特010019 [3]内蒙古农业大学生命科学学院,呼和浩特010018

出　　处：《内蒙古农业大学学报（自然科学版）》2011年第3期211-214,共4页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

摘　　要：为了探讨地被植物在不同遮荫条件下的适应性,本研究以10种地被植物为材料,对其在不同光照条件下的生长状态、日平均净光合速率、表观量子效率及光补偿点进行分析。结果表明:遮荫水平对10种植物的光合有很大影响,10种植物能忍受的遮荫程度不同。对旋覆花、甘野菊、大叶铁线莲、青杞、委陵菜来说,全光比较合适;对蛇莓、匍枝毛茛、匍枝委陵菜来说,它们在遮阴条件下的光合速率要高于在全光下的光合速率,1/3是最适遮荫度。而连钱草适宜的光强是1/3全光～全光,玉竹比较适宜1/6～1/3全光。根据试验材料对光的适应性,可将它们直接应用在不同的园林绿地中。The study was focused on 10 ground covering plants in order to investigate the adaptabilities of the ground covering plants under different shade conditions.Their growth state,the average daily net photosynthetic rate,apparent quantum efficiency and light compensation point were analyzed under different illumination conditions.The results showed that shade levels have a great impact on photosynthetic of the 10 plants.The tolerations of these plants were different under different levels of shade.Complete illumination were more suitable to Inula japonica,D.lavandulifolium,Clematis heracleifolia,Solanum septemlobum Bge.and Potentilla chinensis Ser.However,the photosynthetic rate of Duchesnea indica,Potentilla eptans L.and Potentilla flagellaris was higher than that in the full illumination,and 1/3 the illumination was the optimum shade degree to them.The appropriate light intensity to Glechoma hederacea L was 1/3 to full of the illumination,while Polygonatum doratum prefer 1/6 to 1/3 of the illumination.Those 10 ground covering plants can be applied directly to different gardens green space,according to the light adaptability of test materials.

关 键 词：地被植物 遮荫性 光合速率 

分 类 号：Q945.11[生物学—植物学]