微型盆菊商品生产技术研究

The Commercial Production Technique of Mini-Potted Chrysanthemum

菊花组培苗在春节前１００天出瓶载培，大多数品种可以应节开花，其观赏效果和开花植株百分率随继代培养年限长而下降。用配方基质栽培可比用传统塘泥栽培生产出观赏性与摆设性更优良的盆菊。合理应用适宜浓度的生长延缓剂，可使植株微型化，同时保持花大色艳和较高的开花株率。组织培养繁殖、配方基质栽培和对株型的化学调控，是微型盆菊商品生产的重要技术环节。

The research was conducted to ascertain that in vitro reproduction, the mixed planting material cultivation and the chemical regulation on plant shape and size are the encential factors in the technological process of the mini-potted chrysanthemum commercial production. The result showed that the in vitro seedlings of most tested chrysanthemum varieties, transplanted to ex vitro culture 100 days before Spring Festival (SF),presented fully bloom on festival days. For longer the subculture period lower the percentage of the flowering plants and shorter the diameter of flowers, and it seems better to transplant the in vitro seedings to ex vitro culture in one year. The decoration natures and display characteristics of mini-potted chrysanthemum plants planted in the mixed planting materials were superio to that planted in the conventional planting material and pond silt.Foliage spraying with 1200～5000mg/L duminozide (B 9) and 100～200mg/L paclobutrazol(PP 333 ) produced the mini-potted chrysanthemum with characteristics of perfect plant height, thick and dark green leaves, big size and bright color flowers, and high percentage of flowering plants. The suitable kind and moderat concentration of growth retardant depends on different chrysamthemum varieties.