Different consistency phytohormone was applied to the seedling roots of three Fagaceae species distributed in Ningbo area,then the number and incresment of secondary roots were measured and analyzed.

• 选择宁波地区分布的3种壳斗科树种1年生幼苗,通过不同浓度生长调节剂根施处理,测定并分析了幼苗侧根的数量及其生长量。