ZHAO Bing.Influence of Different Light Time and GA3 Concentration on Seed Germination of Rhododendron purdomii [J].Northern Horticulture,2014,38(02):60-63.
光照时间和赤霉素浓度对太白杜鹃种子萌发的影响
- Title:
- Influence of Different Light Time and GA3 Concentration on Seed Germination of Rhododendron purdomii
- 文章编号:
- 1001-0009(2014)02-0060-04
- 分类号:
- S 685.21
- 文献标志码:
- A
- 摘要:
- 以太白杜鹃种子为试材,研究了不同光照时间、不同浓度赤霉素(GA3)浸种处理对种子萌发的影响,以期为太白杜鹃的种质保存和开发利用提供科学依据。结果表明:光照时间对太白杜鹃的发芽时间和发芽率均没有明显的影响,但在24 h全黑暗状态下,在GA3浓度低于800 mg/L时,其发芽势要高于另外2种光照处理;用GA3对太白杜鹃种子进行24 h浸泡后,可以显著提早太白杜鹃种子开始发芽时间,缩短种子萌发的时间,提高其发芽率和发芽势。
- Abstract:
- Taking Rhododendron purdomii seed as material,the effects of light time and gibberellin(GA3) on Rhododendron purdomii seeds germination were studied,in order to provid a scientific basis for germplasm preservation and utilization of ?Rhododendron purdomii.The results showed there was little difference among the three light time on the starting germination time,germination rate,but under 800 mg/L GA3 conditions,the germination vigor of 24 h dark was much higher than the other two light treatments.After soaked 24 h with different concentration GA3,the starting germination time,germination rate and germination vigor were all dramatically enhanced.
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备注/Memo
作者简介:赵冰(1980- ),女,河南驻马店人,博士,讲师,现主要从事园林植物种质资源等教学与科研工作。E-mail:bingbing2003915@163.com.