欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志 ›› 2010, Vol. 29 ›› Issue (03): 460-466.

• 研究报告 • 上一篇    下一篇

水杨酸对大叶黄杨茎抗寒性和电阻抗图谱参数的影响

李 亚;张 钢**;张玉星;郝 征   

  1. 河北农业大学园艺学院,河北保定 071001
  • 出版日期:2010-03-10 发布日期:2010-03-10

Effects of salicylic acid on frost hardiness and electrical impedance spectroscopy parameters of Euonymus japonicus stem.

LI Ya;ZHANG Gang|ZHANG Yu-xing;HAO Zheng   

  1. College of Horticulture, Agricultural University of Hebei, Baoding 071001, Hebei, China
  • Online:2010-03-10 Published:2010-03-10

摘要: 在抗寒锻炼前,对当年生大叶黄杨(Euonymus japonicus)扦插苗喷施不同浓度水杨酸,用电阻抗图谱(EIS)法和电导(EL)法估测茎的抗寒性,以探明抗寒锻炼期间水杨酸对大叶黄杨抗寒性和电阻抗图谱参数的影响,找到适合不经冷冻处理估测大叶黄杨茎抗寒性和经冷冻处理后测定其抗寒性的EIS参数。结果表明,水杨酸处理能够提高大叶黄杨茎的抗寒性,最适浓度为5.0 mmol·L-1;不经冷冻处理茎的EIS参数电阻率rr1、胞外电阻率re、胞内电阻率ri、弛豫时间τ、弛豫时间分布系数ψ与EL法测定的抗寒性有较高的相关性(r=0.70~0.87),说明不经冷冻处理样本用以上参数估测大叶黄杨茎抗寒性是可行的,r1为最佳参数;冷冻处理后茎的re、τ、ri求得的抗寒性与EL法测定的抗寒性有较高的相关性(r=0.85~0.94),说明冷冻处理后re、τ、ri可以作为测定大叶黄杨茎抗寒性的参数,re为最佳参数。

关键词: 朝鲜碱茅, 构件, 生物量, 模型

Abstract: Currentyear cutting plants of Euonymus japonicus were treated with different concentration salicylic acid (SA) before frost hardening, and their
 frost hardiness during the period of the hardening was assessed by electrical impedance spectroscopy (EIS) and electrolyte leakage (EL), aimed to explore the e
ffects of SA on the frost hardiness and the EIS parameters of E. japonicus, and to search for the suitable EIS parameters to evaluate the frost hardiness
of E. japonicus stems with and without artificial freezing. Treating with SA increased the frost hardiness of E. japonicus stems, and the optimal
concentration of SA was 5.0 mmol·L-1. For the nonfrostexposed stems, the resistances r and r1, extracellular resistance re, intracellular resistance ri, relaxation time τ, and distribution coefficient of relation time ψ had high correlations with the frost hardiness measured by EL (r=0.70-0.87), suggesting that these EIS parameters could be used to measure the frost hardiness of E. japonicus without artificial freezing, and r1 was the best parameter. For the frostexposed stems, the re, τ, and ri were highly correlated with the frost hardiness (r=0.85-0.94), indicating that re, τ, and ri could be the suitable parameters to measure the frost hardiness of E. japonicus after artificial freezing, and re was the best parameter.

Key words: Puccinillia chinampoensis, Module, Biomass, Model