Abstract: Lycoris cut-flower varieties Lycoris sprengeri, Lycoris aurea, Lycoris radiata and Lycoris longituba were used as experimental materials, the effects of bulb, light, temperature and culture medium on cut-flower quality and yield of Lycoris plants were studied. The results showed that, bulb size and bulb age of Lycoris plants were positively correlated with cut-flower quality and yield. Under different light conditions, with the increase of shading intensity, flowering was delayed and flowering period was shortened. Under the condition of 45% shading, the yield increased, the flowering period was advanced, the length and thickness of scape were increased, and the quality of cut-flower was generally improved. The flowering time of Lycoris plants was affected by temperature, and delayed with the decrease of temperature. The best temperature for flowering was 20~26 ℃. The four varieties all like warm climate, the highest temperature is not more than 30 ℃, the ten day average temperature is 24~26 ℃, which is suitable for Lycoris plants growth. However, there was no significant difference in the yield and quality of cut-flowers. The effect of three culture medium on the quality and yield of cut-flower of Lycoris plants cut-flower was not significant.

Key words: Lycoris plant, cut-flower quality, yield, cultivation technique