前言作者曾报道了日本白桦(Betula platylla var.japonica HARA)剥皮枝条切段离体繁殖的可能性。就这种桦树来说,虽然通过不定芽再生小植株的方法有一定效果,但生产能力并不大,培养过程中每一个外植体仅能产生少量的小植株。为加快 Preface The authors have reported the possibility of in vitro propagation of peeled shoots from Japanese white birch (Betula platylla var. Japonica HARA). As for the birch, although the method of regenerating plantlets through adventitious buds has a certain effect, its production capacity is not large, and only a small number of plantlets can be produced for each explant during the cultivation. To speed up