关键词: 苦苣苔, 室内植物, 基质, 繁殖效率

Abstract: Chirita ‘Kazu is a horticulture hybrid cultivar of genus Chirita. It has high ornamental value both on the flower and foliage. This plant has not been commercially cultivated in China. Propagation efficiency of Chirita ‘Kazu by different leaf cutting types and cutting substrates was investigated. The results showed that the rooting rates of all leaf cutting types were high， from 867% to 100% of the whole leaf cutting. Rooting initiation and adventitious buds emergence were affected by the cutting types and substrate formulas. Both the root initiation and adventitious shoot emergence of the upper segments without petiole were earlier than that of the lower part with petiole. The cutting type and substrate formula also affected the number of adventitious buds. The upper segments of leaf cutting with large cutting edges produced more adventitious buds. In spring， each leaf can produce up to 64 plantlets by the two segments cutting.

Key words: Chirita ‘Kazu’, indoor plant, substrate, propagation efficiency