湖北农业科学 ›› 2020, Vol. 59 ›› Issue (8): 121-125.doi: 10.14088/j.cnki.issn0439-8114.2020.08.027

• 贮藏·加工 • 上一篇    下一篇

不同贮藏条件对梭梭种子萌发活力的影响

王泽1, 任财1, 梁燕2, 颜安1, 麻浩1, 罗艳丽1, 粟玲1   

  1. 1.新疆农业大学草业与环境科学学院/新疆土壤与植物生态过程实验室,乌鲁木齐 830052;
    2.新疆生产建设兵团林业工作管理总站,乌鲁木齐 830013
  • 收稿日期:2019-09-20 出版日期:2020-04-25 发布日期:2020-07-03
  • 通讯作者: 颜 安(1983-),男,副教授,硕士生导师,博士,主要从事农业资源与环境研究,(电子信箱)yanan@xjau.edu.cn。
  • 作者简介:王 泽(1984-),男,新疆昌吉人,助理研究员,在读博士研究生,主要从事荒漠生态恢复与重建研究,(电话)13999952631(电子信箱) wz@xjau.edu.cn。
  • 基金资助:
    国家自然科学基金项目(31800384); 新疆自治区区域协同创新专项(科技援疆计划)(2017E0237); “荒漠生态恢复与重建”协同创新中心联合资助项目

Effects of different storage conditions on the germination vigor of Haloxylon ammodendron(C.A.Mey.)Bunge seeds

WANG Ze1, REN Cai1, LIANG Yan2, YAN An1, MA Hao1, LUO Yan-li1, SU Ling1   

  1. 1. College of Pratacultural and Environmental Sciences/Xinjiang Key Laboratory of Soil and Plant Ecological Processes,Xinjiang Agricultural University, Urumqi 830052,China;
    2. Forestry Workstation of Management General Station in Xinjiang Production and Construction Corps, Urumqi 830013, China
  • Received:2019-09-20 Online:2020-04-25 Published:2020-07-03

摘要: 以吐鲁番梭梭[Haloxylon ammodendron(C.A.Mey.)Bunge]树体上的成熟种子为材料,研究贮藏时间、贮藏温度和贮藏种子含水量对梭梭种子萌发活力的影响。结果表明,室温和冰箱贮藏种子9个月,种子发芽率随着贮藏时间的延长呈下降趋势,下降幅度达46.50和35.50个百分点,各时期冰箱贮藏种子发芽率的下降幅度低于常温贮藏。不同温度下贮藏梭梭种子3个月的发芽率、发芽势、发芽指数和胚鲜重特征为-10 ℃>-18 ℃>-4 ℃>4 ℃>常温,且随着贮藏温度的降低呈先升高后降低,差异显著。不同梭梭种子含水量贮藏3个月的发芽率、发芽指数、胚根长和活力指数随着种子含水量的降低呈先升高后降低趋势,种子含水量为5.50%的降低幅度最小。贮藏温度与活力指数间呈极显著负相关,贮藏种子含水量与发芽指数和活力指数间呈极显著负相关,种子发芽率、活力指数与不同贮藏条件间的相关性高低顺序均为贮藏种子含水量>贮藏温度>贮藏时间,而发芽势、发芽指数与不同贮藏条件间的相关性高低顺序均为贮藏温度>贮藏种子含水量>贮藏时间。

关键词: 贮藏条件, 梭梭[Haloxylon ammodendron(C.A.Mey.)Bunge]种子, 萌发, 活力

Abstract: The mature Haloxylon ammodendron(C.A.Mey.)Bunge seeds in Turpan were used as experimental materials, to study the effects of storage time, temperature and seed moisture content on the germination vigor of H.ammodendron(C.A.Mey.)Bunge seeds.The results showed that, under the storage mode of room temperature and refrigeratort for nine months, with the extension of storage time, the seed germination percentage showed a decrease trend, and the rate of decline were 46.50 and 35.50 percentage point. The reduction of germination percentage of storage seeds in refrigerator was lower than room temperature in various periods. Under different storage temperatures for three months, the characteristics of germination percentage, germination potential, germination index and fresh weight of embryo were -10 ℃>-18 ℃>-4 ℃>4 ℃>room temperature. With the storage temperature was decreased, the trend was increased first, then decreased significantly. Under different seed moisture content stored three months, the characteristics of germination percentages, germination index, root length and vigor index of seeds were as follows, with the seed moisture content was decreased, the trend was increased first, then decreased, and the reduction was lowest under the storage conditions of seed moisture content of 5.50%. There were extremely significant negative correlation between storage temperature and vigor index, between storage seed moisture content and germination index,vigor index, respectively. The order of correlation coefficient between seed germination percentages, vigor index and different storage conditions was moisture content>storage temperature>storage time, however,the order of correlation coefficient between seed germination potential,vigor index and different storage conditions was storage temperature> moisture content>storage time.

Key words: storage conditions, Haloxylon ammodendron(C.A.Mey.)Bunge seeds, germination, vigor

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