Tissue culture method was used to explore the glutamine and lanthanum chloride on the rooting and POD expression of Dendrobium.The results showed that,influence of glutamine,lanthanum chloride on the rooting and growth of Dendrobium was related to the treatment concentration.With the increasing of glutamine concentration,the total rooting number and the average rooting number appeared to drop;After treating for 30 days,when the glutamine contentration reached 2mg/L,the maximum rooting number was 5.78.when t...