[1]邸桂俐,王建丽,申忠宝,等.钠盐胁迫对锁链稗种子萌发及幼苗生长的影响[J].黑龙江农业科学,2021,(08):23-26.[doi:10.11942/j.issn1002-2767.2021.08.0023]
　DI Gui-li,WANG Jian-li,SHEN Zhong-bao,et al.Effects of Sodium Salt Stress on Seed Germination and Seedling Growth of Echinochloa crusgalli[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(08):23-26.[doi:10.11942/j.issn1002-2767.2021.08.0023]
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钠盐胁迫对锁链稗种子萌发及幼苗生长的影响

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2021年08 页码: 23-26 栏目: 出版日期: 2021-08-10
Title:
Effects of Sodium Salt Stress on Seed Germination and Seedling Growth of Echinochloa crusgalli
作者:
邸桂俐1; 王建丽1; 申忠宝1; 潘多锋1; 邢星1; 边亚娟2; 高超1
1.黑龙江省农业科学院 草业研究所，黑龙江 哈尔滨 150086；2.黑龙江生物科技职业学院，黑龙江 哈尔滨 150025
Author(s):
DI Gui-li1; WANG Jian-li1; SHEN Zhong-bao1; PAN Duo-feng1; XING Xing1; BIAN Ya-juan2; GAO Chao1
1.Institute of Prataculture,Heilongjiang Academy of Agricultural Sciences,Harbin 150086,China; 2.Heilongjiang Vocational College of Biology Science and Technology,Harbin 150025,China
关键词:
锁链稗; 盐胁迫; 种子萌发; 生长势
Keywords:
Echinochloa crusgalli; salt stress;  seed germination; seedling growth
DOI:
10.11942/j.issn1002-2767.2021.08.0023
文献标志码:
A
摘要:
为促进锁链稗草在盐碱土改良中的应用，采用滤纸培养法，测定了不同浓度的NaCl、NaHCO3和Na2CO3胁迫下，锁链稗种子的发芽势、发芽率、发芽指数以及芽长和根长。结果表明：低浓度NaCl(50 mmol?L-1)胁迫下，可促进锁链稗种子萌发；随着钠盐浓度的增加，锁链稗的发芽率、发芽势和发芽指数都呈现出逐渐降低的趋势，抑制作用为Na2CO3＞NaHCO3＞NaCl。钠盐胁迫抑制了锁链稗幼苗的生长，低浓度的NaCl（50和100 mmol?L-1）胁迫对锁链稗种子的芽长和根长影响不显著，而高浓度的NaCl（>100 mmol?L-1）则显著降低芽长和根长。NaHCO3和Na2CO3胁迫下，锁链稗的芽长和根长均显著低于对照。
Abstract:
In order to promote the application of Echinochloa crusgalli in saline alkali soil improvement,the germination potential,germination rate,germination index,seedling length and root length of Echinochloa crusgalli seeds under different concentrations of NaCl,NaHCO3 and Na2CO3 were determined by filter paper culture method.The results showed that low concentration of NaCl (50 mmol?L-1) could promote seed germination of Echinochloa crusgalli; With the increase of sodium salt concentration,the germination rate,germination potential and germination index of Echinochloa crusgalli decreased gradually,and the inhibition effect was Na2CO3>NaHCO3>NaCl.Sodium salt stress inhibited the growth of Echinochloa crusgalli seedlings.Low concentrations of NaCl (50 and 100 mmol?L-1) had no significant effect on the seedling height and root length of Echinochloa crusgalli seeds,while high concentrations of NaCl (> 100 mmol?L-1) significantly reduced the seedling height and root length.Under NaHCO3 and Na2CO3 stress,the seedling height and root length of Echinochloa crusgalli were significantly lower than those of the control.

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备注/Memo

收稿日期：2021-05-22

基金项目：中央财政林业科技推广示范项目（2019HZT11号）；黑龙江省农业科学院院级课题（2020FJZX038，2020FJZX048）。
第一作者：邸桂俐（1973-），女，硕士，高级农艺师，从事牧草栽培和草地改良研究。E-mail:diguili59@163.com。
通信作者：高超（1979-），女，硕士，副研究员，从事草地生态改良研究。E-mail:gaochaopdf2000@163.com。

更新日期/Last Update: 2021-09-29