摘要
山茶花(Camellia japonica Linn.)花芽分化及花型形成过程表明:1、山茶花花序除了单花外,还存在着头状花序。头状花序的出现,使山茶花花型产生并蒂多花的花型;2.山茶花花器官分化遵循定位分化原理进行。雄蕊离心式瓣化,因其瓣化程度及瓣化形式的不同而产生:(1)托挂型→皇冠型→绣球型,(2)台阁型→楼子型等二个系统;3.台阁型山茶花仅仅是楼子型雄蕊离心式瓣化的初级形式。通过花构造的观察,可确认台阁型不属于上下两朵花的重叠现象;4.经切片观察,山茶花千层花型是雄蕊向心式瓣化的结果。
The authors observe the entire process on morphological flower bud differentiation for cultivars of Camellia japonica L. the results expressed that: 1 . Besides the simple flower, there is a capitulum inflorescence in the Camellia, japonica L. 2 . According to the rule of the orientation differetiation the flower organ of the Camellia japonica L. carries on differentiation. Two flower type systems are developed with the differe-nces of stamen centrifugal-petalody formation and range. A system is d-eveloped from laurel type to crown type and to hydrangea type. Another system is developed from garret type to tower type. 3 . The garret type is just as the preliminary formation of tower flower type centrifugal petalody. It is considered that the garret type flower is not replication of two entire flowers ( high and low ) by observation of the flower organ structure. 4 . The flower type of thousand layer formation is due to the result of stamen centri-petalody by the observation of the flower bud section.
出处
《园艺学报》
CAS
CSCD
北大核心
1989年第2期153-160,共8页
Acta Horticulturae Sinica
