Comparative of Photosynthetic Characteristics of Rhododendron triflorum Under  Different Light Environments(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Comparative of Photosynthetic Characteristics of Rhododendron triflorum Under  Different Light Environments

Author(s):: LIU Lin; ZHANG Liangying; FEI Wenqun; CAO Runfa; (Department of Plant Science，Tibet Agricultural and Animal Husbandry College，Linzhi，Tibet 860000)

Keywords:: R.triflorum; light environments; photosynthetic characteristics; leaf traits

Abstract:: Rhododendron triflorum was used as material,leaf traits and photosynthetic characteristics of Rhododendron triflorum under different light environments (1 400-2 000,800-1 600,100-500 μmol?m-2?s-1) were analyzed,in order to select the suitable light environment for cultivation.The results showed that with the decrease of light intensity，the leaf length and leaf width increased but the specific leaf weight decreased.Compared with the full sunlight treatment，total chlorophyll content of R.triflorum grown in the forest or forest edge were both significantly reduced，but the ratio of chlorophyll a/b of the two treatments had not decline significantly.Under full sunlight environment，the light saturation point (LSP)，light compensation point (LCP) and dark respiration rate (Rd) were the highest.However the maximum net photosynthetic rate (Pmax) of the forest edge treatment was the highest overall.After comprehensive analysis，it was concluded that the forest edge treatment may be the most appropriate light environment for R.triflorum.

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Last Update: 2017-05-31