The effects of LED light on the growth of Acer negudo ‘Aurea' in vitro were studied.The results showed that the plantlet height of Acer negudo ‘Aurea' in vitro was 3.04 cm in V3+V3 light,followed by V1+V3 light,there was no significant difference between the two treatment.Under V1 +V3 light treatment condition,the chlorophyll content was 2.71 mg/g,root numbers were 9.62,root length was 5.74 cm and root activity was 0.087 mg/(g·h),which were significantly higher than other treatment.V1 +V3 LED light was more...