金边瑞香花芽形态分化研究

Researches on Flower Bud Morphodifferentiation of Daphne odora var.narginata

金边瑞香花芽由顶芽发育而成 ,花芽分化包括花序分化和小花分化两个过程 ,分为未分化、开始分化、花序原基分化、小花原基分化、花瓣分化、雄蕊分化和雌蕊分化 7个时期 ,分化的顺序是向心的 ;分化的临界期为 5月中旬 ,分化时期长达 7个月 ,花芽分化既持续又表现出两个分化高峰 ,还受温度等因素的影响。

Flower bud of Daphne odora var.narginata Mak.turns from terminal bud.Its differentiation includes two processes of differentiation of inflorescence and of floret,can be divided into seven developmental stages:undifferentiation,different beginning,differentiation of inflorescence,floret,petal,stamen and pistil.The flower bud differentiation begins on May middle and requires 6-7 months.Flower bud differentiation is individual and may be divided two rapid times.The bud differentiation is affected by temperature et al.