Effects of Soaking with Salicylic Acid on Seeds Gernimation and Seedlings Growth of Pea(Pisum sativum)

Effects of salicylic acid(SA)on germination of seeds and growth of seedlings of pea were studied,The results showed that,treated with 10-40 mg/L of SA,the germination energy and percentage were promoted by 12% and 10%;Treated with 40 mg/L of SA,the seedlings were remarkably increased 1.20 to 1.32 times in fresh and dry weigh than the control,Treated with 20 mg/L of SA,the respiratory rate of germinnationnal seeds and the root activity of seddlings were remarkably increased than the control,Treated by above 60 mg/L of SA,the conductivity was increased to 128% of ck,and some relevant indexes were lower than ck,at the same time,the growth of seedlings were inhibited.The experiments proved that thongh treatment with 40 mg/L of SA conld improve absorption of N and K,it wasn't appropriate to absorption of P from seedlings of pea.