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植物研究 ›› 2008, Vol. 28 ›› Issue (4): 442-446.doi: 10.7525/j.issn.1673-5102.2008.04.013

• 论文 • 上一篇    下一篇

CaCl2对金叶女贞茎抗寒性和电阻抗图谱参数的影响

刘 辉;张 钢*   

  1. (河北农业大学园艺学院,保定 071001)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-07-20 发布日期:2008-07-20
  • 通讯作者: 张 钢
  • 基金资助:
     

The Influence of CaCl2 on the Frost Hardiness and Electrical Impedance Parameters in Stems of Ligustrum vicaryi During Hardening

LIU Hui;ZHANG Gang*   

  1. (College of Horticulture,Agricultural University of Hebei,Baoding 071001)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-07-20 Published:2008-07-20
  • Contact: ZHANG Gang
  • Supported by:
     

摘要: 为探明CaCl2处理对金叶女贞(Ligustrum vicaryi)茎抗寒性和电阻抗图谱参数的影响,找出抗寒性和电阻抗图谱参数的关系,2006年9月15日开始对金叶女贞当年生扦插苗进行CaCl2处理,对照为清水;分别用电阻抗图谱法和电导法估测其抗寒性,并进行比较分析。结果表明:CaCl2处理能在抗寒锻炼初期使金叶女贞茎的抗寒性提高3.5℃,金叶女贞茎的抗寒性与未冷冻处理茎的弛豫时间τ、冷冻处理后茎的胞外电阻率re、含水量之间均存在较高的相关性。

关键词: CaCl2, 抗寒性, 电阻抗图谱

Abstract: To study the influence of CaCl2 on the frost hardiness (FH) and the parameters of electrical impedance spectroscopy (EIS) in stems of Ligustrum vicaryi during the hardening period, as well as to find the relation between the EIS parameters and the FH, the cutting plants of L. vicaryi is CaCl2 treated on 15 September, 2006, and the water was used as control. The FH was assessed by methods of EIS and electrolyte leakage (EL), and the FH results between the two methods were compared. The results indicated that the FH of the stem in plants with CaCl2 treatment was 3.5℃ hardier than that in control plants during early days of the hardening period. The FH has high correlation with relaxation time (τ) of stem (not exposed to controlled freezing tests), extracellular resistance (re) of stems (after controlled freezing tests) and the water content of the stems.

Key words: CaCl2, frost hardiness, electrical impedance spectroscopy

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