摘要
[目的]研究三花龙胆花芽分化过程,阐明其花芽发育规律及花芽分化与外部形态的相关关系。[方法]利用石蜡切片法对三花龙胆花芽进行显微观察。[结果]三花龙胆花芽分化过程可分为6个时期,即未分化期、分化初期、萼片原基分化期、花瓣原基分化期、雄蕊原基分化期、雌蕊原基分化期。花芽分化从5月初开始至6月上旬基本完成,历时约40 d。其植株发育到10～11节时,花芽开始分化,花芽分化与植高关系不大。[结论]该研究为制定三花龙胆丰产栽培措施、品种培育及花期调控等提供了理论依据。
[ Objective] This study was to study the flower bud differentiation process of Gentiana triflora Pall. , and to clarify the flower bud development law and the correlation between flower buds differentiation and external morphology. [ Method ] The paraffin section method was used to observe the flower bud of Gentiana triflora under microscope. [ Result] The flower bud differentiation process of Gentiana triflora could be divided into six stages： the undifferentiated stage, initial differentiation stage, sepal primordia differentiation stage, petal pfimordia differen- tiation stage, stamen primordia differentiation stage and the pistil primordia differentiation stage. The flower bud differentiation started from early May, when the plant had lO - 11 stem nodes, and completed in early June, lasted about 40 d. The effect of plant height on flower bud differentiation was not significant. [ Conclusion] The study provided theoretical basis for the high-yield cultivation, variety selection and flow- ering regulation of Gentiana triflora.
出处
《安徽农业科学》
CAS
2012年第8期4512-4513,4585,共3页
Journal of Anhui Agricultural Sciences
基金
黑龙江大学青年基金项目
关键词
三花龙胆
花芽分化
发育
Gentiana triflora
Flower bud
Development
