For poplar 84K the optimal selecting pressure for both adventitious bud and root induction were 20 mg/L, while 15 mg/L for triploid white poplar.

• 确定了84K 杨和三倍体毛白杨叶片芽诱导卡那霉素临界筛选浓度分别为20 mg/L和15 mg/L;