浙江农业科学 ›› 2024, Vol. 65 ›› Issue (4): 894-899.DOI: 10.16178/j.issn.0528-9017.20230210

• 大小麦 • 上一篇    下一篇

PEG-6000模拟干旱胁迫对冬黑麦生理指标的影响

乌日力嘎1(), 邓宇1,*(), 孙墨可2,*()   

  1. 1.长春大学 园林学院,吉林 长春 130022
    2.白城市农业科学院,吉林 白城 137099
  • 收稿日期:2023-05-26 出版日期:2024-04-11 发布日期:2024-04-22
  • 通讯作者: 邓宇(1989—),女,吉林松原人,讲师,博士,从事植物逆境分子生物学、果树生物技术研究,E-mail:dengyu_ccu@163.com;孙墨可(1988—),女,吉林白城人,助理研究员,硕士,从事作物遗传育种研究,E-mail:337645598@qq.com
  • 作者简介:乌日力嘎(1998—),女,内蒙古通辽人,硕士,从事农艺与种业研究,E-mail:158398750@qq.com
  • 基金资助:
    吉林省科技发展计划(YDZJ202301ZYTS345);白城市科技发展计划(202204);长春大学博士科研启动项目(ZKQD202308)

Effects of PEG-6000 simulated drought stress on physiological indexes of winter rye

Wurlig1(), DENG Yu1,*(), SUN Moke2,*()   

  1. 1. College of Landscape Architecture, Changchun University, Changchun 130022, Jilin
    2. Baicheng Academy of Agricultural Sciences, Baicheng 137099, Jilin
  • Received:2023-05-26 Online:2024-04-11 Published:2024-04-22

摘要:

为探究干旱胁迫对冬黑麦生长及生理指标的影响,使用15%聚乙二醇-6000(PEG-6000)对水培俄罗斯冬黑麦BK01模拟干旱胁迫,分别在处理0(CK)、3、6、9、12、24 h测定不同胁迫时叶片各项生理指标。结果表明,随胁迫时间的延长,冬黑麦叶片脯氨酸和丙二醛含量呈上升趋势;过氧化氢酶、过氧化物酶、超氧化物歧化酶活性、可溶性蛋白和可溶性糖含量呈先上升后下降趋势;相对含水率呈下降趋势;研究结果将为冬黑麦抗旱研究进展提供新的理论依据。

关键词: 冬黑麦, 干旱胁迫, 生理指标

Abstract:

In order to investigate the effects of drought stress on the growth and physiological indexes of winter rye (Secale cereale L.), the hydroponic Russian winter rye BK01 was simulated by using 15% PEG 6000 (PEG-6000). The physiological indexes of leaves under different stress conditions were determined at 0 (CK), 3, 6, 9, 12 and 24 h, respectively. The results showed that the contents of proline and malondialdehyde in winter rye leaves increased with the prolonging of stress time. The activities of catalase, peroxidase, superoxide dismutase, soluble protein and soluble sugar increased first and then decreased. The relative water content showed a decreasing trend. This study will provide a new theoretical basis for the research progress of drought resistance of winter rye.

Key words: winter rye (Secale cereale L.), drought stress, physiological index

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