| 摘要: |
| 针对LED(Light Emitting Diode)光源照射可对植形态造成影响，提出LED补光促进中药植物有效药用结构的研究；结合光学与植物学实验的方法，利用复合白光、复合黄光、单色光红光及单色光蓝光4种光谱能量分布的LED光源照射中药植物石楠，控制光照强度在(200±5)μmol m 2s 1，每天日落后延长3 h LED光源照射时间，并测量植物药用结构面积；结果得出白光LED、黄光LED补光能够增大中药石楠药用结构面积；红光LED、蓝光LED可降低中药石楠药用结构发育面积，且红光对植物叶片形态影响程度较大；说明LED光源光谱能量分布能够促进药用植物的有效药用结构面积。 |
| 关键词: 光谱能量分布 光照强度 中药石楠 LED补光 |
| DOI： |
| 分类号: |
| 基金项目: |
|
| Analysis of the Influence of LED Supplementary Lighting on Herb Structure of Photinia |
|
DUAN Ran1,2, XIE Qing1, WANG Zhi gang2
|
| Abstract: |
| According to that LED(Light Emitting Diode) lighting can affect the shape of a plant, this paper proposes to use LED supplementary lighting to promote herb structure of medicinal plants. By combining optical and botanical experiments, four light sources with different spectral energy distributions, i.e., composite white LED and yellow LED, homo-light red LED and blue LED are used to provide supplementary lighting on medicinal plant Photinia, the light intensity is controlled at(200+-S)umol m-2s-1, after sun set, LED supplementary lighting is conducted for three hours every day, parameters such as area and perimeter of leaves, the plant’s medicinal part, are measured after supplementary irradiation. The results show that white and yellow LED lights can enlarge the medicinal structure of the plant, that red and blue LED can decrease the area of medicinal structure of the plant, and that red LED largely affects the shape of the plant leaves. The conclusion provides theoretical and experimental basis for LED lighting to promote medicinal structure of herb plants. |
| Key words: spectral energy distribution light intensity herb Photinia LED supplementary lighting |
