Rooting culture
There are two methods for rooting culture of H. hybrida,in- cluding conventional rooting and clustered seedling rooting. Conventional rooting technology is to separate the proliferated multiple bud clumps into individual seedlings with 1 - 2 small buds and then inoculate to MS,MS +0.2 mg/L NAA or 1/2MS +0.2 mg/L NAA for rooting culture; clustered seedling rooting technology is to separate the proliferated multiple bud clumps into individual clustered buds with 3 - 5 small buds and then inoculate to MS, MS + 0. 2 mg/L NAA or 1/2MS + 0. 2 mg/L NAA for rooting culture.