摘要
根据东北龙胆(Gentiana manshurica Kitag.)茎顶花芽分化中的形态变化,划分为未分化期、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、雌蕊原基分化期等6个时期.花芽分化从5月末开始到6月末基本完成,历时约30 d.花芽分化的开始以植株的节数(10～11节)作为标志即可,与植株的高矮关系不大.
Six stages were divided on the base of morphological changes in the process of flower bud differentiation of Gentiana manshurica Kitagawa.They are undifferentiation stage,predifferentiation stage,sepal primordia differentiation stage,petal primordia differentiation stage,stamen primordia differentiation stage and pistal primordium differentiation stage.From the end of May to the end of June,the flower bud differentiation was completed and it lasted about 30 days.The number of the stem nodes(10~11) may be used as a mark of the initiation of flower bud differentiation of G.manshurica Kitagawa.There are no correlation obviously between the plant altitude and flower bud differentiation.
出处
《哈尔滨师范大学自然科学学报》
CAS
2007年第3期100-103,共4页
Natural Science Journal of Harbin Normal University
基金
黑龙江省自然科学基金资助项目(C0209)
黑龙江省教育厅科学技术研究项目(10551097)
关键词
东北龙胆
花芽分化
Gentiana manshurica
Flower bud differentiation
