Influences of Different Shading and Soil Water Drainage on Growth and Photosynthetic Characteristics of Rhododendron moulmainense

被引：0
作者：
Bai Y. [1 ]
Xie L. [2 ]
Wang D. [3 ]
机构：
[1] Lawn Research Institute of Beijing Forestry University, Beijing
[2] School of Applied Chemistry and Biotechnology, Shenzhen Polytechnic, Shenzhen
[3] Administrative Office of Wutong Mountain National Park, Shenzhen
来源：
Linye Kexue/Scientia Silvae Sinicae | 2017年 / 53卷 / 02期
关键词：
P[!sub]n[!/sub; P[!sub]n[!/sub]/PAR; Photoresponse curve; Plant growth; Rhododendron moulmainense; Shading; Soil water drainage; WUE;
D O I：
10.11707/j.1001-7488.20170206
中图分类号：
学科分类号：
摘要：
Objective: This study aimed to select the suitable key cultivation conditions for growth of Rhododendron moulmainense and provide technical support for landscape application of R. moulmainense. Method: The split-plot experiment design was adopted with different shading (0%, 20%, 50%, 80%) as the main plot and different soil water drainage (high bed and flat bed) as the subplot. The plant increment and photosynthetic characteristics of R. moulmainense. were measured. Result: The results showed that under 50% shading with high bed, the branch increment was greatest, and chlt (total chlorophyll content), Pmax(maximum net photosynthetic rate), AQY (apparent quantum yield), daily average Pn (net photosynthetic rate), daily average WUE (water use efficiency), and daily average Pn/PAR (photosynthetically active radiation) of R. moulmainense were relatively higher or the highest. The chla/chlb (chlorophyll a/chlorophyll b), LCP (light compensation point), LSP (light saturation point), and Rd (dark respiration rate) were relatively lower or the lowest. In contrast, under 0% shading with flat bed, the chlorophyll content, Pmax, AQY, daily average Pn, daily average WUE, and daily average Pn/PAR of R. moulmainense were the lowest, and the basal stem increment chla/chlb, LCP, LSP, and Rd were the highest.In general, with enhancing of shading (moderate shading) and soil water drainage, the branch increment, chlorophyll content and RWC appeared the trend of increasing gradually, while the other indexes all appeared the trend of decreasing gradually. Conclusion: It is concluded that Rhododendron moulmainense is suitable for growing in the habitat with 50% shading and high bed. © 2017, Editorial Department of Scientia Silvae Sinicae. All right reserved.
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页码：44 / 53
页数：9
相关论文
共 43 条
[1]  
Cai G.R., Liu Q., Domestication and cultivation of genus Rhododendron, Practical Forestry Technology, 9, pp. 49-50, (2011)
[2]  
Chen X.B., Tian Q., Zhang L.P., Et al., Influence of different transmittance and water contents in soil on branch increment and some physiological indexes in leaf of Sinocalycanthus chinensis, Journal of Plant Resources and Environment, 19, 4, pp. 70-77, (2010)
[3]  
Chen T.X., Hao W.J., Chen X.B., Et al., Comparison of photosynthetic characteristics of 10 Alfalfa cultivars, Chinese Journal of Grassland, 31, 2, pp. 41-45, (2009)
[4]  
Ding X.T., Jin H.J., Zhang H.M., Et al., Effect of shading on growth and diurnal photosynthetic changes of four vegetables in glasshouse, Acta Agriculturae Zhejiangensis, 22, 1, pp. 51-56, (2010)
[5]  
Huang T., Liao J.Y., Tang H., Geographical distribution and utilization of Rhododendron moulmainense in China, Journal of Hunan Environment-Biological Polytechnic, 29, 2, pp. 1-4, (2010)
[6]  
Kang M.L., Li Y.H., Xie L.J., Et al., Biological characteristics and cultivation management of Rhododendron moulmainense, Journal of Anhui Agricultural Sciences, 37, 16, pp. 7389-7391, (2009)
[7]  
Li H.S., Modern Plant Phydiology, (2002)
[8]  
Li W.H., Jia C.J., Study on the propagation of Rhododendron moulmainense, Jilin Agriculture, 2, pp. 164-165, (2012)
[9]  
Lin P., Li J.Y., Chen C., Study on the photosynthetic physiological ecology characteristics of gingko, Journal of Beijing of Forestry University, 30, 6, pp. 22-29, (2008)
[10]  
Liao J.Y., The research on photosynthetic characteristic of four Rhododendron species in Hunan, (2011)
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