Abstract: Lilium Oriental hybrid‘Sorbonne’were used to study the effects of GA3，IBA and temperature treatments on scales cutting propagation as well as the carbohydrate metabolism. The results showed that GA3 treatments could enlarge the bulblets in a short time，and IBA treatments made the formation of bulblets delay，but the propagation coefficient and the uniformity of bulblets could be increased. GA3 and IBA combined with 5 ℃ pretreatment separately could increase the mass of bulblets significantly，and could promote bulblets to enlarge in a short period; IBA 100 mg · L-1，1 h combined with 5 ℃ pretreatment made the propagation coefficient and the uniformity of bulblets higher than 25 ℃/15 ℃variable temperature culture as well as 25 ℃ constant temperature culture；GA3 100 mg · L-1，2 h combined with 5 ℃ pretreatment could obtain the best quality of bulblets. During scales reproduction，GA3，IBA with different temperature treatments made the content of starch and total soluble sugar declinein scales，especially which in the base of scale decreased sharply in the early stage at 25 ℃（20 d）；IBA promoted the degradation of starch，which provided the nutrition for the induction and formation of bulblets. The content of total soluble sugar in mother scales was lower under IBA combined with low temperature treatments than those with non-cold treatments. 5 ℃ pretreatment promoted the degradation of starch in mother scales with GA3 treatment.

Key words: lily, scale cutting, growth regulator, temperature, carbohydrate