LED光质对于生菜生长的影响

摘要

In oeder to analyze the LED light with different red and blue light ratio for plant growth, This paper have set four contorl groups, for which red light to blue light ratio are 4 to 1, 1 to 3, 1 to 4, 2, to, 1, as compared with normal group illuminated by white light. More than this, we also have ensured in case of the exactly same of light source, photoperiod and light intensity to look into the effect of light quality on the cotyledon, main leaf and plant height of romaine lettuce under the circumestances and the detected results were statistically analyzed. The results of this experiment reflect on that the most favorable photoperiod for romaine lettuce is that red light to blue light ratio is 4 to 1 . Through the adjusting to experimental results, this can be used in plant factory to increase production efficiency.%为了研究不同红蓝光质配比的LED光源对生菜生长的影响,本文设置红( R)、蓝( B)光质比分别为R∶B=4∶1,R∶B=1∶3,R∶B=1∶4,R∶B=2∶1的四组光源,并以白光LED照射为对照组,在光周期,光照强度的相同的情况下照射生菜,探究不同光质对于生菜子叶、真叶、株高的影响并进行分析,分析结果表明对生菜生长最有利的光质是R∶B=4∶1。该研究可应用于植物工厂领域,提高生产效率。