LI Qun,WANG Meng,RUAN Cheng-jiang.Study on Germination of Five Species of Early Spring Flowering Woody Plants[J].Northern Horticulture,2013,37(21):73-76.
五种早春开花木本植物花粉萌发的研究
- Title:
- Study on Germination of Five Species of Early Spring Flowering Woody Plants
- 文章编号:
- 1001-0009（2013）21-0073-04
- Keywords:
- early spring; woody plants; pollen; germination rate; low temperature storage
- 分类号:
- Q 944.58
- 文献标志码:
- A
- 摘要:
- 以连翘、紫丁香、紫叶小檗、紫藤和黄山紫荆5种早春开花木本植物的花粉为试材，采用离体萌发培养法研究了不同浓度蔗糖、不同培养时间和超低温贮藏对花粉萌发的影响。结果表明：蔗糖在一定浓度范围内对花粉萌发具有促进作用，但超过一定浓度后则会抑制花粉萌发；随着培养时间的延长，花粉萌发率呈上升趋势；连翘、紫丁香、紫叶小檗、紫藤和黄山紫荆在蔗糖浓度分别为20%、10%、25%、10%、15%时花粉萌发率最高，分别为98.0%、71.7%、57.8%、83.0%、76.5%；冷藏后的花粉萌发率与对照相比明显降低，降低幅度在43.7%（连翘）～58.0%（紫叶小檗）；而贮藏时间对花粉萌发率的影响不大。
- Abstract:
- Taking Forsythia suspensa，Syringa oblate，Berberisthunbergii cv.atropurpurea，Wisteria sinensis and Cercis chingii 5 early spring blossom woody plant pollen as experimental material，the effect of sugar gradients，culture time and ultra-low temperature storage for culturing five species of early spring flowering woody plants pollens on pollen germination were studied.The results showed that the pollen germination was promoted by the sucrose at certain values,but beyond values the pollen germination would be inhibited.When the sucrose concentration were 20%，10%，25%，10% and 15%，respectively，the germination rate of Forsythia suspensa，Syringa oblate，Berberisthunbergii cv.atropurpurea，Wisteria sinensis and Cercis chingii were the highest,that were 98.0%，71.7%，57.8%，83.0% and 76.5%，respectively.The germination rate of pollen treated by low temperature storage was obviously decreased compared with control.The range of reducing was between 43.7% (Forsythia suspensa) and 58.0% (Berberisthunbergii cv. atropurpurea).The storage time had a little effect on pollen germination rate.
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备注/Memo
第一作者简介：李群（1978-），女，博士，讲师，现主要从事植物繁殖生物学等研究工作。E-mail：liqunmuai2000@163.com.