草地学报

›› 2008, Vol. 16 ›› Issue (4): 347-352.DOI: 10.11733/j.issn.1007-0435.2008.04.006

• 研究论文 • 上一篇    下一篇

结缕草品种抗寒性和抗寒机理研究

杜永吉1, 于磊2,4, 孙吉雄3, 鲁为华2,4, 韩烈保1   

  1. 1. 北京林业大学草坪研究所, 北京, 100083;
    2. 新疆石河子大学, 动物科技学院, 新疆, 石河子, 832003;
    3. 甘肃农业大学, 草业学院, 甘肃, 兰州, 730070;
    4. 新疆兵团, 绿洲生态农业重点实验室, 新疆, 石河子, 832003
  • 收稿日期:2007-10-08 修回日期:2008-01-21 出版日期:2008-08-15 发布日期:2008-08-15
  • 通讯作者: 韩烈保,E-mail:hanlb@tom.com
  • 作者简介:杜永吉(1981- ),男,博士研究生,研究方向为草坪草育种、草坪草生理生化研究,E-mail:duyongji1202@yahoo.com.cn
  • 基金资助:
    国家863计划项目(2006AA10Z132);“十一五”科技支撑项目(2006BAD01A19-4);新世纪优秀人才基金

Study on Cold-resistance and Its Mechanism of Different Cultivars of Zoysia japonica Steud.

DU Yong-ji1, YU Lei2,4, SUN Ji-xiong3, LU Wei-hua2,4, HAN Lie-bao1   

  1. 1. Institute of Turfgrass Science, Beijing Forestry University, Beijing 100083, China;
    2. College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang Vygur Autonomous Region 832003, China;
    3. Pratacultural College, Gansu Agricultural University, Lanzhou, Gansu Province 730070, China;
    4. Key Laboratory of Oasis Ecological Agriculture, Xinjiang Bingtuan, Shihezi, Xinjiang Vygur Autonomous Region 832003, China
  • Received:2007-10-08 Revised:2008-01-21 Online:2008-08-15 Published:2008-08-15

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摘要： 通过低温胁迫处理兰引3号结缕草(Zoysia japonica Steud. cv. Lanyin No.3)、青岛结缕草(Zoysia japonica Steud. cv. Qingdao)和交大1号结缕草(Zoysia japonica Steud. cv. Jiaoda No.1),分别测定27~-17℃3个品种的叶片、茎电解质渗透率(EL)、丙二醛(MDA)含量和超氧化物歧化酶(SOD)活性并进行地下茎恢复生长试验,得出生理指标的动态变化规律。结果表明:低温胁迫下,兰引3号结缕草抗寒性最强,EL、MDA和SOD三者显著相关。该研究可为结缕草的推广和应用提供重要理论依据。

关键词: 结缕草, 品种, 低温胁迫, 抗寒性, 生理指标, 相关性

Abstract: The electrolyte leakage(EL),malondiadehyde(MDA) content,and superoxide dismutase(SOD) activity of leaves and stolons as well as the restorable growth of rhizomes were determined and observed of three cultivars,Zoysia japonica Steud. cv.Lanyin No.3,Z.japonica cv.Qingdao,and Z.japonica cv.Jiaoda No.1,at low temperature stress from 27℃ to-17℃.The results show that Lanyin No.3 had the best cold-resistance among three cultivars.Correlative analysis indicates that EL,MDA content,and SOD activity correlated with each other significantly.These results could be used as basis for the extended application of Z.japonica in practice.

Key words: Zoysia japonica Steud., Cultivars, Low temperature stress, Cold-resistance, Physiological indexes, Correlation

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