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植物研究 ›› 2010, Vol. 30 ›› Issue (2): 228-237.doi: 10.7525/j.issn.1673-5102.2010.02.018

• 论文 • 上一篇    下一篇

4种中原牡丹在哈尔滨地区的抗寒性研究

任丽;岳桦*   

  1. 东北林业大学园林学院,哈尔滨 150040
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-03-20 发布日期:2010-03-20
  • 通讯作者: 岳桦
  • 基金资助:
     

Cold Resistance of 4 types of Central Plains Tree Peony Cultivars in Harbin Area

REN Li;YUE Hua*   

  1. College of Landscape Architecture,Northeast Forestry University,Harbin 150040
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-03-20 Published:2010-03-20
  • Contact: YUE Hua
  • Supported by:
     

摘要: 通过低温胁迫处理哈尔滨地区的中原牡丹品种‘豆绿’、‘洛阳红’、‘首案红’和‘姚黄’,分别测定4个品种根、枝的相对电导率、丙二醛、可溶性糖和可溶性蛋白含量,得出生理指标的动态变化规律,并观察了根部解剖结构。结果表明:低温胁迫下,‘豆绿’抗寒性最强,‘洛阳红’抗寒性最弱。相对电导率、丙二醛、可溶性糖和可溶性蛋白含量四者显著相关。根部解剖结构自外而内由表皮、皮层和中柱三部分组成。根部组织切片显示出深度休眠期与生长期相比,韧皮部中淀粉粒增加较多,与植物抗寒有一定关系。该研究可为中原牡丹在寒地的推广和应用提供重要理论依据。

关键词: 中原牡丹品种, 抗寒, 生理, 解剖结构

Abstract: Through cold stress treatment on the following varities: ‘Doulv’, ‘Luoyang Hong’,‘Shouan Hong’ and ‘Yaohuang’ which belong to central plains tree peony cultivars, the relative conductivity, malonaldehyde, soluble sugar and soluble protein of their roots and branches were measured, finally the dynamic change law of physiological index were obtained, and the anatomical structure of roots was observed. The results are as follows: ‘Doulv’ performs the strongest cold resistance, and ‘Luoyang Hong’ shows the weakest. The relative conductivity, malonaldehyde, soluble sugar and soluble protein show significant correlation. Anatomy showed that roots’ tissue included 3 layers: epiderm, cortex and stele. Starch grains in phloem increased obviously in deep dormancy compared with growth period, the quantity of starch grains increased in peony’s roots expressed important relation to cold resistance of central plains tree peony. This research can provide theoretical basis for popularization and application of central plains tree peony cultivars in cold area.

Key words: Central Plains tree peony cultivars, cold resistance, physiology, anatomical structure

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