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种苗质量选择苗龄选择4～5年生分株苗植株,具有8～15个枝条,枝条长度为15～30cm,每个枝条上具有1～2个饱满花芽。根系选择主根长≥20cm,根粗≥2cm,新根较多的植株。株型选择的种苗株型紧凑、枝条健壮、整批外观均匀整齐、枝芽完好、根系完整。花芽要求分化完全,充实饱满,无病虫害。
Seedling quality selection Seedling age 4 to 5 year-old seedlings plants, with 8 to 15 branches, branches length of 15 ~ 30cm, each branch has 1 to 2 full flower buds. Roots of the main root length selection ≥ 20cm, root thickness ≥ 2cm, more roots new plants. Plant type selection of seedling compact, strong branches, the whole batch of uniform appearance, branch buds intact, root system integrity. Flower bud differentiation requires complete, full and full, no pests.