彩叶芋(Caladium bicolor Vent)是天南星科(Araceae)的室内观叶植物。它叶大,彩色斑点变化多。一般用球根繁殖,速度慢;采用组织培养则可大量繁殖。材料和方法以国外引进的11个品种的彩叶芋叶作试材。将全展叶连柄剪下,清水洗净,于0.1％的升汞中浸泡10分钟,后用无菌水冲洗3次。在超净工作台上将叶切成约1厘米的切块,放 Caladium bicolor Vent is an indoor foliage plant of the Araceae family. It leaves large, more changes in color spots. The general use of bulb breeding, slow; the use of tissue culture can be a large number of breeding. MATERIALS AND METHODS The cultivars of Panax lotus with 11 varieties introduced from abroad were used as materials. The whole leaf with a handle cut off, washed with water, soaked in 0.1% mercuric chloride for 10 minutes, rinsed with sterile water three times. On the clean bench cut the leaves into about 1 cm of the cut, put