草地学报

草地学报 ›› 2019, Vol. 27 ›› Issue (2): 356-363.DOI: 10.11733/j.issn.1007-0435.2019.02.012

• 研究论文 • 上一篇    下一篇

贮藏年限对燕麦种子生理生化特性的影响

金小雯1, 张炜炜2, 赵桂琴1, 柴继宽1, 王苗苗1, 焦润安1, 孙浩洋1, 黎蓉1   

  1. 1. 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 甘肃省草业工程实验室, 中-美草地畜牧业可持续发展研究中心, 甘肃 兰州 730070;
    2. 甘肃省天水市秦州区畜牧兽医局, 甘肃 天水 741000
  • 收稿日期:2018-12-06 修回日期:2019-03-05 出版日期:2019-04-15 发布日期:2019-05-30
  • 通讯作者: 赵桂琴
  • 作者简介:金小雯(1994-),女,甘肃秦安人,硕士研究生;主要从事牧草种质资源与育种研究,E-mail:1749560385@qq.com
  • 基金资助:
    行业专项子课题（150712）；国家燕麦荞麦产业体系（CARS-07-C）资助

Effects of Storage Years on Seed Physiological and Biochemical Characteristics of Oat

JIN Xiao-wen1, ZHANG Wei-wei2, ZHAO Gui-qin1, CHAI Ji-kuan1, WANG Miao-miao1, JIAO Run-an1, SUN Hao-yang1, LI Rong1   

  1. 1. Key Laboratory of Grassland Ecology System, Ministry of Education, Sino-U. S. Centers for Grazing Land Ecosystem Sustainability, College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China;
    2. Animal Husbandry and Veterinary Bureau of Qinzhou District, Tianshui 741000, China
  • Received:2018-12-06 Revised:2019-03-05 Online:2019-04-15 Published:2019-05-30

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摘要： 为研究贮藏时间对燕麦种子萌发及生理生化特性的影响，本试验以白燕2号和白燕7号为供试材料，研究了燕麦种子萌发特性、渗透调节物质含量、抗氧化酶和脱氢酶活性、丙二醛含量随贮藏年限的变化情况。结果表明，燕麦种子发芽势等萌发指标和幼苗生长均随贮藏时间的延长而下降。贮藏8年时发芽率显著降低，白燕2号低于40%；而白燕7号仍有60%以上。在0~4年的贮藏期内，燕麦种子脯氨酸和可溶性糖含量增加，丙二醛含量显著上升；白燕2号抗氧化物酶活性随贮藏年限的增加显著下降，白燕7号的则明显上升。贮藏8年后燕麦种子渗透调节物质和抗氧化物酶活性急剧下降，有毒物质积累增加，种子贮藏特性变劣。白燕7号的耐贮藏性明显优于白燕2号。

关键词: 燕麦, 贮藏年限, 种子萌发, 生理生化特性

Abstract: In order to study the effects of storage years on the germination and physiological and biochemical characteristics of oat seeds,two oat varieties (Baiyan No.2 and Baiyan No.7) with different storage years were used as materials to study the germination characteristics,osmotic adjustment substances,antioxidant enzymes and dehydrogenase activities,and malondialdehyde content were tested. The results showed that the seed germination index and seedling growth of germinated oat seed decreased with the increase in storage years. The germination rate decreased significantly after storage for 8 years,Baiyan No.2 was lower than 40%,and Baiyan No.7 was higher than 60%. During storage period of 0~4 years,the content of proline and soluble sugar in oat seeds increased,and the content of malondialdehyde increased significantly. The activity of antioxidant enzymes of Baiyan No.2 decreased significantly with the increase of storage age,while an obvious increment was obtained in Baiyan No.7. After 8 years of storage,the osmotic adjustment substance and antioxidant enzymes activity of oat seed decreased sharply,the accumulation of toxic substances increased,and the storage characteristics of seeds deteriorated. The storage stability of Baiyan No.7 was much better than that of Baiyan No. 2.

Key words: Oat, Storage years, Seed germination, Physiological and biochemical characteristics

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