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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (34): 41-45.doi: 10.11924/j.issn.1000-6850.2014-1613

• 林学 园艺 园林 • 上一篇    下一篇

盐胁迫对雪菊种子萌发的影响

叶尔根·夏依木拉提1，秦 勇1,2，许红军1   

  1. （1新疆农业大学林学与园艺学院，乌鲁木齐 830052；2新疆农业大学设施农业研究所，乌鲁木齐 830052）
  • 收稿日期:2014-06-06 修回日期:2014-11-28 接受日期:2014-09-30 出版日期:2015-03-10 发布日期:2015-03-10
  • 通讯作者: 秦勇
  • 基金资助:

    基金项目：国家自然科学基金项目“雪菊品质形成与生态因子的关系研究”(31360319)。

Effects of Salt Stress on Seeds Germination of Coreopsis tinctoria.

Yeergen·Xiayimulati1, Qin Yong1,2, Xu Hongjun1   

  1. (1Departmen of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi 830052;
    2Institute of Environment Controlled Agriculture, Xinjiang Agricultural University, Urumqi 830052)
  • Received:2014-06-06 Revised:2014-11-28 Accepted:2014-09-30 Online:2015-03-10 Published:2015-03-10

摘要： 以雪菊(Coreopsis tinctoria Nutt.)种子为试验材料，研究盐胁迫对雪菊种子萌发的影响。用不同浓度的NaCl、Na2SO4以及混合盐NaCl:Na2SO4:Na2CO3=2:7:1（质量比）处理雪菊种子。结果表明：盐胁迫使雪菊种子的发芽指数、发芽势和发芽率明显降低，且随着盐浓度的增加,抑制作用增强；3种盐对雪菊种子萌发的抑制作用强度依次为：混合盐>NaCl>Na2SO4；雪菊种子耐盐适宜范围为NaCl 0.78%、Na2SO4 0.84%、混合盐0.15%；耐盐半致死浓度为NaCl 1.34%、Na2SO4 1.41%、混合盐0.89%；耐盐极限浓度为 NaCl 2.23%、Na2SO4 2.31%、混合盐2.08%。盐胁迫解除后雪菊种子仍具有较高的萌发率。

关键词: 相关分析, 相关分析

Abstract: The effects of NaCl, Na2SO4 and 2:7:1 (NaCl+Na2SO4+Na2CO3) under different concentration on the seeds germination of Coreopsis tinctoria was studied. The results showed that the germination index, germination potential and germination rate of Coreopsis tinctoria seeds decreased obviously under the stress of test salts; moreover, the inhibition was strengthened with the increase in the concentrations of salts stress. Compared the inhibition showed that mixed salt>NaCl>Na2SO4. The suitable salt concentration for Coreopsis tinctoria seed germination was 0.78% NaCl, 0.84% Na2SO4 and 0.15% mixed salt; the half lethal concentration and fatal concentration of NaCl, Na2SO4 and mixed salt was respectively 1.34%, 1.41%, 0.89% and 2.23%, 2.31%, 2.08%. Research also showed that after relieve the salt stress, seeds of Coreopsis tinctoria still had high germination rate.