春季是绝大部分花木进行扦插繁殖的最佳季节。春插育苗的优点在于:一是观赏植物在春季萌动后,分生组织细胞加速分裂,有利于插穗的愈合生根;二是春天多雨,空气湿度大,温度适中,对插穗切口的愈合和根系的分化尤为适宜;三是春插穗条生根后,小苗有一段较长的生长时间,当年即可培育出符合一定规格的苗木。适于春季扦插繁殖的花木有二大类:一类是生根时间长、不易生根的灌木和常绿树,如雪松、龙柏、圆柏、法 Spring is the best season for cuttage propagation of most flowers and trees. The advantages of spring planting seedlings are: First, ornamental plants in the spring after germination, meristem cells accelerated division, is conducive to cutting heal the rooting; the second is the spring rainy, air humidity, moderate temperature, the cutting incision healing and root Differentiation is particularly appropriate; Third, after the cuttings of spring cuttings, the seedlings have a longer period of growth, that year can be nurtured to meet certain specifications of seedlings. Suitable for spring cutting propagation of flowers there are two categories: one is rooting for a long time, not easy to root shrubs and evergreen trees, such as cedar, Cypress, Sabina, France