草地学报

草地学报 ›› 2014, Vol. 22 ›› Issue (3): 669-672.DOI: 10.11733/j.issn.1007-0435.2014.03.036

• 研究专报 • 上一篇    下一篇

内蒙古8份冷蒿种质资源材料抗寒性的初步研究

韩轩1, 蔡萍2, 伊卫东1, 韩晓亮1, 徐振朋1, 宛诣超1   

  1. 1. 内蒙古农业大学生态环境学院, 内蒙古 呼和浩特 010019;
    2. 锡林浩特职业学院草原畜牧系, 内蒙古 锡林浩特 026000
  • 收稿日期:2013-11-18 修回日期:2014-01-14 发布日期:2014-06-04
  • 通讯作者: 蔡萍
  • 作者简介:韩轩（1988- ），男，河北新乐人，硕士研究生，主要牧草种质资源方面的研究工作，E-mail：839841531@qq.com
  • 基金资助:

    内蒙古自然科学基金（2012MS0410）资助

Preliminary Studies on Cold Resistance of Eight Artemisia frigida Germplasm Resources in Inner Mongolia

HAN Xuan1, CAI Ping2, YI Wei-dong1, HAN Xiao-liang1, XU Zhen-peng1, WAN Yi-chao1   

  1. 1. College of Ecology and Environmental Science, Inner Mongolia Agricultural University, Baotou, Inner Mongolia 014100, China;
    2. Department of Grassland and Animal Husbandry, Xilingol Vocational College, Xilinhaote, Inner Mongolia 026000, China
  • Received:2013-11-18 Revised:2014-01-14 Published:2014-06-04

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摘要：

采用内蒙古8个生境冷蒿（Artemisia frigida）的营养枝在人工模拟低温条件下，选用电导率法、硫代巴比妥酸比色法测定其相对电导率、丙二醛（MDA）含量，对这些指标与抗寒性的关系进行分析。结果表明：采用电导率和MDA含量评价冷蒿的抗寒性效果较好。8个生境的冷蒿抗寒性（致死温度）强弱依次为：海拉尔（-15.19℃）>克什克腾（-14.13℃）>锡林浩特（-12.54℃）>大青山（-10.98℃）>阿巴嘎（-10.30℃）>鄂托克（-8.27℃）>塔尔岭（-7.92℃）>巴彦浩特（-3.30℃）。

关键词: 冷蒿, 抗寒性, 半致死温度, 丙二醛

Abstract:

The vegetative branches of Artemisia frigida growing in the eight habitats of Inner Mongolia are used as experimental materials. The relative conductivity and the MDA content are measured using electric conductivity and thiobarbituric acid coloration method under the artificial simulation of low temperature conditions. The relationships between physical signs and cold resistance are analyzed. The results show that both electrical conductivity and MDA content are effective for estimating the cold resistance of A. frigida. The cold resistances of eight A. frigida germplasm resources are in the following order: Hailar (-15.19℃)> Hexigten (-14.13℃)> Xilinhot (-12.54℃)> Daqing Mountain (-10.98℃)> Abaga (-10.30℃)> Etuoke (-8.27℃)> Tal Ridge (-7.92℃)> Bayanhot (-3.30℃).

Key words: Artemisia frigida, Cold resistance, Semilethal low temperature, MDA

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