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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (22): 22-26.doi: 10.11924/j.issn.1000-6850.2012-0366

• 林学 园艺 园林 • 上一篇    下一篇

水松扦插繁殖体系研究

吴则焰 刘金福 洪伟 郑世群 何中声 张晓萍   

  • 收稿日期:2012-02-13 修回日期:2012-03-18 出版日期:2012-08-05 发布日期:2012-08-05
  • 基金资助:

    福建省自然科学基金

The Study on the Cutting Propagation of Glyptostrobus pensilis

  • Received:2012-02-13 Revised:2012-03-18 Online:2012-08-05 Published:2012-08-05

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摘要：

水松是中国特有的珍稀濒危孑遗植物，目前对其保护主要通过人工栽培以恢复种群规模。建立有效的水松扦插繁殖体系，可为其规模化生产提供技术保障，对其种质资源保存和种群扩大具有重要意义。运用不同条件进行水松扦插繁殖试验，探讨不同激素种类、激素浓度、处理时间、扦插基质及插穗的选择等因素对水松扦插生根率及生根性状的影响。结果表明，ABT1处理的插穗生根率明显高于其他激素，浓度为150 mg/L ABT1处理后生根率最高可达36.94%；不同浸泡时间对插穗生根率影响不同，浸泡2 h后生根率最高；泥炭土:珍珠岩(2:1)混合基质条件下，生根率最高，生根性状指标优于其他基质；侧枝及顶芽是影响水松插穗生根率的重要因素；春季扦插生根率明显高于秋季。总结得出水松扦插繁殖的最佳技术组合，生根率可达39.89%，研究结果可为水松种群的保护和人工培育管理提供科学依据。

关键词: 体系, 体系

Abstract:

Glyptostrobus pensilis is a rare and endangered relict species to China. Currently cultivation is the main measures to protect it. However, few research on the cutting propagation of G.pensilis has been reported so far. This paper aims to establish an effective cutting propagation system, which has great significance for germplasm conservation and artificial cultivation of G.pensilis. The cuttage propagation techniques of G.pensilis was explored in this study by testing various factors including different auxin, treatment concentration, treatment time and substrate. The results showed that the cuttings rooting rate was significantly higher by soaking in ABT1 150mg/L solution for 2 h than other hormones. The medium with combination of peat soil:perlite = 2:1 was the best substrate. The terminal bud and sucker were the key factors to improve rooting rate of G.pensilis, while the cuttings rooting rate was significantly higher in spring than autumn. The rooting rate could reach 39.89% by this way. The results would provide a theoretical basis for the protection and management of G.pensilis population.

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