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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (27): 82-87.doi: 10.11924/j.issn.1000-6850.casb17070020

所属专题： 园艺； 农业气象

• 林学 园艺 园林 • 上一篇    下一篇

干旱及盐胁迫对两种耧斗菜种子萌发的影响

郝 丽,任瑞芬,任 才,武 曦,赵 凯,杨秀云   

  1. 山西农业大学林学院,山西农业大学林学院,山西农业大学林学院,山西农业大学林学院,山西农业大学林学院,山西农业大学林学院
  • 收稿日期:2017-07-06 修回日期:2017-07-18 接受日期:2017-08-09 出版日期:2017-10-09 发布日期:2017-10-09
  • 通讯作者: 郝 丽
  • 基金资助:
    山西省农业科技攻关项目“山西优势草种驯化培育及产业化开发-山西乡土芳香地被植物选优及扩繁体系构建”(20140311013-4)。

Effects of Drought and Salt Stress on Seed Germination of Two Kinds of Aquilegia viridiflora

  • Received:2017-07-06 Revised:2017-07-18 Accepted:2017-08-09 Online:2017-10-09 Published:2017-10-09

摘要： 以耧斗菜(Aquilegia viridiflora Pall.)中的两个品种(矮重品种和矮化品种)作为试验材料,通过研究不同温度、干旱胁迫及不同盐胁迫对两种耧斗菜的影响,分析其发芽率、叶面积、胚芽、胚根长度等指标,探究温度、PEG处理及盐胁迫对2种耧斗菜种子的萌发以及幼苗生长的影响。具体结果如下：(1)耧斗菜矮重品种的种子在常温和5%PEG-6000的干旱处理下发芽率最高,为92%,其矮化品种在同等条件下发芽率仅为40%。(2)在两种耧斗菜种子中,耧斗菜矮重品种种子表现出较强的抗旱性,在20%的PEG-6000干旱胁迫下依然可以发芽,而耧斗菜矮化品种种子在同等干旱胁迫下被抑制发芽和生长。(3)Na2SO4表现为0.3%浓度的溶液对种子萌发具有促进作用,与CK组相比发芽率提高了14%,其他盐溶液则表现为抑制,且随浓度的增加抑制作用增强。

关键词: 肥料, 肥料, 缓释肥, 早稻, 种子包衣肥, 缓释性能

Abstract: With two species Aquilegia viridiflora Pall. as the experimental material,study the effects of different temperature,drough and salt stress on Aquilegia(Dwarf and polyphyll) and Aquilegia(Dwarf),analysis the germination rate,leaf area,embryo and radicle length and other indicators of them,then explore the effects of temperature,PEG treatment and salt stress on the seed germination and seedling growth of Aquilegia. The results show that:(1)At the room temperature and drought treatment of 5% PEG-6000 the highest germination rate was 92% of the Aquilegia(Dwarf and polyphyll) seeds，but under the same conditions the Aquilegia（Dwarf）germination rate was only 40%.(2)The drought resistance of Aquilegia(Dwarf and polyphyll) was stronger than that of Aquilegia(Dwarf).When the PEG-6000 concentration reached 20%,the Aquilegia(Dwarf and polyphyll) can still germinate,but the Aquilegia(Dwarf）can not.(3)0.3% concentration of Na2SO4 could promote the seed germination, compared with CK group the germination rate was increased by 14% ,but other concentration salt solutions were inhibited, and the inhibition increased with the increase of concentration.