LED灯在植物补光领域的效用探究曲溪.pdfVIP

2008 6　　　　　　 　　　　　　　　　　32 2 LED 曲　溪, 叶方铭, 宋杰琼, 顾玲玲, 方　圆, 陈　涛, 陈大华 (复旦大学光源与照明工程系, 上海200433) 　:该文旨 通过实验探究 我国东南沿海的温室种植环境下利用LED 和荧光灯对种植植物进 行补光的效用对比。荧光灯选用专门研制的植物生长用荧光灯, 其辐射光谱峰值为405.9 nm、437.3 nm、547.5 nm、612.9 nm 和659.4 nm, 而LED 光源为自行组装的LED 光源, 采用了单颗功率为1 W 的 LED, 按照红蓝光发光颗粒数比为5 ∶1比例混合。实验另设有空白对照组, 即没有选择任何补光设备。 借由植物的生长状况来评价两种光源 植物补光领域的效用。 实验结果显示植物补光照明对植物生 长有促进植株干重增长 15%～20%的效果, 其中荧光灯补光的番茄叶绿素含量最高, LED 次之, 而自 然光组较差。另外, 展示了LED补光的节能效果和改进潜力能体现植物补光应用的乐观前景。 :LED;荧光灯;植物补光;叶绿素;植株干重 The Research on the Effects of LED in the realm of supplementary lighting on plants Qu Xi, Ye Fangming,Song Jieqiong, Gu Lingling, Fang Yuan, hen Tao, hen Dahua (F udan University , Ligh t Source Illumination Dep t .S hanghai 200433) Abstract :The paragraph contrasts the effects of LED and fluorescent lamp in the realm of supplementary lighting on plants, which are cultivated in southeast of hina.We choose the specific fluorescent lamps, the peak values in spectrum ofwhich are 405.9 nm、437.3 nm、547.5 nm、612.9 nm and 659.4 nm;We also design a collection of 1w LEDs with the red blue ratio of 5 ∶1;besides, we have a blank control group without any supplementary lighting devices.By assessing the effects of two supplementary lighting devices by the growth condition of plants, the result of experiment indicates that the dry weight of the plants which is supplementary lighted is 15%～20% higher than the control group.The tomato which is supplementary lighted by fluorescent lamps contains more chlo- rophyll than that of led group and even more than control group.Further, the energy saving and improvement po- tent of LED have a promoting perspective. Keywords:LED;Fluorescent Lamp;Supplementary lighting;hlorophyll;Dry weight , 0　 , , ,