金边彩叶草是国外进口的F_1代新品种,比传统栽培品种有更强的观赏性和更高的商业价值。由于不结种子,笔者做了种种试验,最终成功地找到扦插繁殖的四种方法。方法一以黄砂作基质。从2月1日起,剪取母株上6厘米左右带顶穗的茎,插于盆中,浇足水,套上无色透明的塑料袋保温保湿,置于玻璃窗内侧见光处。由于花盆全部置于塑料袋中,水分蒸发极少,仅18天插穗即生根,长达2厘米。同时发现在透明塑料袋出现5次以上的乳白色细雾时(一般在室外温度20℃以上会出现),插穗易腐烂。当小苗具有2厘米以上的细根即可移栽他盆。上海地区在谷雨之前需在室内栽培,以免在室外受春寒冻伤。方法二以自来水扦插。从1月1日起,我分别在白色牛奶瓶、绿色塑料可乐瓶、棕色啤酒瓶中放入洁净的自来 Phnom Penh colored leaf grass is imported F 1 new varieties, more than traditional cultivars ornamental and higher commercial value. Due to not seed, the author made a variety of experiments, eventually successfully found four ways of cutting propagation. Yellow sand as a matrix method. From February 1 onwards, cut the stem of about 6 cm on the parent plant stems spike, inserted in the pot, pour enough water, put a colorless and transparent plastic bag insulation moisturizing, placed in the window to see the light inside. As all pots placed in plastic bags, water evaporation is very small, only 18 days cuttings that take root, up to 2 cm. Also found in transparent plastic bags appear more than 5 milky white mist (usually above the outdoor temperature of 20 ℃ will appear), cuttings perishable. When the seedlings have more than 2 cm fine roots can be transplanted to his basin. Shanghai area before the Guyu need to be cultivated indoors, so as not to be frostbite in the spring by the cold. Method two tap water cuttings. From January 1, I put in clean bottles of white milk bottle, green plastic Coke bottle, brown beer bottle