关键词: 苦苣苔科（Gesneriaceae）, 光照度, 适应性, 综合评价, 生理指标

Abstract: The adaptability of the light intensity of the Gesneriaceae plants was studied to improve the quality of potted Gesneriaceae plants and promote its reasonable application in gardens. The physiological indicators such as malondialdehyde, soluble protein and chlorophyll content under different shading conditions of seven Gesneriaceae plants, including Primulina fimbrisepala, P. eburnean, Primulina ‘Silver Antler’, Hemiboea gracilis, Briggsia mihieri, Lysionotus pauciflorus and Pseudochirita guangxiensis were measured, and the growth was observed. Comprehensive analysis and comparison show that all 7 species of Gesneriaceae family have strong negative tolerance and can grow normally under the conditions of light intensity of 2 000~8 000 lx. From light to strong, the adaptability to the light is Lysionotus pauciflorus, Pseudochirita guangxiensis, Primulina 'Silver Antler', Briggsia mihieri, Primulina fimbrisepala, Hemiboea gracilis, Primulina eburnean.

Key words: Gesneriaceae, lighter intensity, comprehensive evaluation, physiological