| 摘要: |
| 三叶木通的花序分为完全花序、雄花序和单生雌花三类,其中完全花序占84％,花期持续45天左右,其物候可划分为显序、离蕾、花药转黄、花药转红、雌蕊成熟、散粉、花药枯萎和落花8个时期。雌花脱落高峰在5月上、中旬出现。每个药室含有12000花粉粒,花粉在田间条件下寿命较短,它们适宜的发芽温度为16～25℃.花粉形状为椭圆形,纵径与横径的平均长度为24.5μm×12.3μm,具有8条芽沟。 |
| 关键词: 三叶木通(Akebia trifoliata Koidz),花,花粉,花序 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目 |
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| A Biological Study of Flowers in Three-Leaf Akebia (Akebia trifoliata Koidz) |
|
Li Jiarui Li Jinguang Shui Shouqi
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| Abstract: |
| The infloescence of three-leaf akebia (Akebia trifoliata Koidz)
can be classified into three kinds,i.e.the complete,staminat,and solitary
infloescences,of which the complete infloescence occupies 84%. Its flowering
period can last 45 days or so,whose phonological stage Could be classified in 8
stages including beginning infloescence,flower bud separation,anther turning
yellow,anther turning red,maturing gynocia,pollen falling,anther wilting
and flower falling.The carpellate flower peak drop was in the first and second
decades of May.Each anther room contains about 12000 pollen grains。Lifespan
of pollen in the fields was shorter.Optimal temperature for pollen germination
was 16-25℃.pollen grain appears to be ellpse in shape with a size of 24.5um ×
12.3μm and 3 germfurrows |
| Key words: Akebia trifoliata Koidz, flower, anther, infloescence, |
