[1]黄修梅,郝丽珍,惠霖,等.复合盐碱胁迫对蒙古高原野韭种子萌发的影响[J].北方园艺,2018,42(01):1-6.[doi:10.11937/bfyy.20171063]
　HUANG Xiumei,HAO Lizhen,HUI Lin,et al.Effects of Salt-alkali Mixed Stresses on Seed Germination of Allium ramosum From Mongolia Plateau[J].Northern Horticulture,2018,42(01):1-6.[doi:10.11937/bfyy.20171063]
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复合盐碱胁迫对蒙古高原野韭种子萌发的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第42卷 期数: 2018年01 页码: 1-6 栏目: 出版日期: 2018-01-10
Title:
Effects of Salt-alkali Mixed Stresses on Seed Germination of Allium ramosum From Mongolia Plateau
作者:
黄修梅1; 郝丽珍1; 惠霖2; 杨忠仁1; 张凤兰1
1.内蒙古农业大学 内蒙古自治区野生特有蔬菜种质资源与种质创新重点实验室，内蒙古 呼和浩特 010019；2.包头市种子管理站，内蒙古 包头 014010
Author(s):
HUANG Xiumei1; HAO Lizhen1; HUI Lin2; YANG Zhongren1; ZHANG Fenglan1
1.Inner Mongolia Key Laboratory of Wild Peculiar Vegetable Recourse and Germplasm Enhancement,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010019;2.Baotou Seed Management Station,Baotou,Inner Mongolia 014010
关键词:
野韭; 盐碱胁迫; 种子萌发; 恢复萌发; 幼苗生长
Keywords:
Allium ramosum L.; salt-alkali mixed stresses; seed germination; germination recovery; seedling growth
DOI:
10.11937/bfyy.20171063
文献标志码:
A
摘要:
以蒙古高原野韭种子为试材，模拟盐度和碱度各不相同的复杂盐碱条件，研究了混合盐碱胁迫对野韭种子萌发及幼苗生长的影响。结果表明：野韭种子萌发对低盐低碱具有一定适应性；但是随着盐碱胁迫的增强，野韭种子的发芽率、发芽势、发芽指数与对照相比均显著性下降，其中碱性盐所占的比例越大，下降程度越大；各胁迫处理均显著影响了胚轴的生长；将未萌发的种子转移至蒸馏水中复水后，高盐浓度和高pH最终发芽率是对照的44%，说明高盐高碱延缓了种子的萌发，也抑制了一些低活力种子的萌发；综合分析各胁迫处理种子萌发的各项指标，盐浓度、pH及其相互作用对野韭种子萌发有抑制作用，其中盐浓度是决定性的主导因素，pH的影响次之。
Abstract:
Allium ramosum from Mongolia Plateau was used to study effect of mixed stress（by mixing salinity and alkalinity in different molar ratios) on seeds germination and seedling growth of A.ramosum.The results showed that the low salt and low alkali environment had no significant effect on seed germination of A.ramosum.When alkaline salt proportion was larger,the degree of decline was greater.Seed germination percentage,germination potential and germination index were significantly reduced with increasing salinity and pH，which reduced more with the increasing the ratio of alkaline salt.Each stress treatment significantly affected the hypocotyl growth.Ungerminated seeds on each stress might germinate when they were transferred to distilled water.The final germination rate on high salinity and high pH was 44% of CK,indicating that high alkalinity and high salt delayed seed germination and inhibited the germinating of some low vigor seed.These germination indexes indicated salinity and alkalinity and their interaction had inhibited seed germination of A.ramosum,and the salinity was a dominant factor.

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备注/Memo

第一作者简介：黄修梅（1971-），女，博士，副教授，现主要从事蔬菜种质资源与种质创新等研究工作。E-mail:huangxm0404@126.com.

责任作者：郝丽珍（1960-)，女，内蒙古包头人，博士，教授，现主要从事蔬菜种质资源及种质创新等研究工作。E-mail:haolizhen_1960@163.com.
基金项目：国家农业公益性行业科研专项资助项目（201203004）。
收稿日期：2017-09-04

更新日期/Last Update: 2018-01-11