The effects of four different temperature treatments(18℃/12℃, 24℃/18℃, 30℃/24℃, 36℃/30℃) on endogenous polyamines content of leaves were studied in Chinese Kale ( Brassica alboglabra Bailey) seedlings. The results showed that the endogenous polyamines were closely related to the growth and development of plant. With the growth and development of seedling during the treatment of temperature(0~12 d), the total polyamines (PAs), spermine (Spm), spermidine (Spd) and putrescine (Put) content increased gradual...