异色芋(Colocasia heterochoma),是1991年在云南省盈江发现的天南星科芋属新种,株高25—30cm,叶片墨绿色,有暗紫色花纹和银光效果,是很好的盆栽观叶植物。异色芋雌雄异花,从发现至今,没有见过自然结实,人工授粉工作还未开展,繁殖主要通过地下小球茎增殖实现。用组织培养方法能在短期内得到大量种苗,既弥补了原始单一的繁殖方法,又加快了这一新种的推广速度。 挖取健壮植株的地下小球茎(直径0.8—1cm),先用细毛刷沾肥皂液在自来水下洗干净,然后,在净化台上进行常规无菌消毒,之后,切割成8—10块,接种到诱导分化培养基MS+BA lmg/ml+NAA0.lmg/ml上,放入 Colocasia heterochoma is a new species of Arum that is found in Yingjiang in Yunnan Province in 1991. Its height is 25-30cm, its leaves are dark green with dark purple pattern and silver light effect, which is a good potted foliage plant. Heterogeneous heterocarp dioecious, from the discovery so far, have not seen the natural strong, artificial pollination has not been carried out, mainly through the proliferation of underground stems to achieve. Tissue culture method can be a large number of seedlings in the short term, both to make up for the original single breeding methods, but also to speed up the promotion of this new species. Dig underground stout bulbs (diameter 0.8-1cm), sturdy plants, first with a fine brush soaping liquid in tap water wash, and then in the purification stage conventional sterile sterilization, after cutting into 8-10, inoculation To induction of differentiation medium MS + BA lmg / ml + NAA0.lmg / ml, into