Abstract: Anoectochilus roxburghii was used for the study of the effect of different light of light-emitting diode (red, yellow, blue) on its growth index, chlorophyll and stoma. The results showed that red and yellow light were better for the plant height which increased by 18.74%, 21.47%, respectively. But the content of chlorophyll a and chlorophyll b under red and yellow light treat are lower than CK and the plants are weaker. A. roxburghii grew well under blue light, leaf area, and the content of chlorophyll increased a lot than those of CK. The frequency, length and width of each treatment plant stoma have a certain growth.

Key words: light quality, LED, Anoectochilus roxburghii, growth index, chlorophyll

摘要： 以福建产金线莲（Anoectochilus roxburghii）为材料，研究不同LED光质（红光、黄光、蓝光）对金线莲生长指标以及叶绿素、气孔的影响。结果表明，红光与黄光有利于金线莲株高增长，与对照相比分别提高18.74%、21.47%，但二者处理的植株较为瘦弱，且红光和黄光处理下的植株叶绿素a和叶绿素b含量较低。蓝光处理下金线莲生长情况较好，叶面积与对照相比增长明显，且叶绿素含量相对较高。不同LED光质处理下的植株气孔频度、长度、宽度与对照相比都有一定增长。

关键词: 光质, LED, 福建金线莲, 生长指标, 叶绿素