我们在平常养花过程中往往会看到,一株多年生的木本花卉,如山茶花、桂花、月季等,栽培了多年,树高甚至达一米左右仍不见花芽,而有的苗高仅20～30厘米,却见含苞待放,初露艳姿.这种现象多发生于扦插苗、嫁接苗及高压苗.究其原因,除与环境条件、管理办法等有关外,也与其树体的生长发育阶段有关. We often see flowers in the process of normal, a perennial woody flowers, such as camellia, sweet-scented osmanthus, rose and so on, cultivated for many years, even up to about one meter tall trees still not see the flower buds, and some seedlings only 20 ~ 30 cm, but see the budding to be put on, the first revealed Yan posture.This phenomenon occurs in the cutting seedlings, grafted seedlings and high-pressure seedlings. The reason, in addition to environmental conditions, management practices, but also with its tree body Growth and development stage.