[1]李波,张孝宇,黎飞飞,等.耐盐碱矮牵牛品种筛选及外源褪黑素对其耐盐碱性的调节作用[J].江苏农业科学,2025,53(13):188-196.
 Li Bo,et al.Screening of Petunia hybrida cultivar with salinealkali tolerance and regulatory effects of exogenous melatonin on its salinealkali resistance[J].Jiangsu Agricultural Sciences,2025,53(13):188-196.
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耐盐碱矮牵牛品种筛选及外源褪黑素对其耐盐碱性的调节作用()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第53卷
期数:
2025年第13期
页码:
188-196
栏目:
园艺与林学
出版日期:
2025-07-05

文章信息/Info

Title:
Screening of Petunia hybrida cultivar with salinealkali tolerance and regulatory effects of exogenous melatonin on its salinealkali resistance
作者:
李波1张孝宇1黎飞飞2孙晶3
1.运城学院生命科学系,山西运城 044000; 2.山东省农业科学院作物研究所,山东济南 250100; 3.运城市科学技术局,山西运城 044000
Author(s):
Li Boet al
关键词:
矮牵牛褪黑素盐碱胁迫盐碱抗性综合评价
Keywords:
-
分类号:
S681.601
DOI:
-
文献标志码:
A
摘要:
为筛选耐盐碱性较强的矮牵牛品种,并探究外源褪黑素对矮牵牛耐盐碱能力的调节作用,以9个矮牵牛品种为试验材料并从中筛选出3个典型品种,基于盐碱胁迫条件下的种子发芽势、发芽率、发芽指数,以及植株的叶绿素含量、丙二醛(MDA)含量和过氧化物酶(POD)、超氧化物歧化酶(SOD)活性等指标,综合评价9个品种的耐盐碱性,并分析不同浓度褪黑素(40、70、100 μmol/L)浸种处理对矮牵牛盐碱抗性的调节效应。结果表明,9个供试矮牵牛品种的耐盐碱性由强到弱依次为YL1>HS2>YL2>HS1>HC3>HC2>HC1>HS3>HD。在盐碱胁迫下,40~100 μmol/L 褪黑素处理提高了矮牵牛种子的发芽能力,增强了植株的叶绿素稳定性,提升了SOD、POD活性,并减缓了MDA含量的积累;其作用效果与处理浓度呈正相关,当褪黑素浓度为100 μmol/L时,种子的发芽势、发芽率、发芽指数达最大值,叶绿素含量最高,SOD、POD活性最强,而MDA积累量最低。综上,100 μmol/L褪黑素浸种处理,可有效缓解盐碱胁迫对矮牵牛种子萌发和幼苗生长的抑制作用。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2024-08-02
基金项目:山西省高等学校科技创新项目(编号:2021L478);山西省优秀博士来晋科研专项(编号:QZX-2021007);山西省高等学校科技创新计划创新实验室平台项目(编号:2022P012);运城学院应用研究项目(编号:CY-2021013);运城市基础研究计划(编号:YCKJ-2022071);运城学院博士科研启动项目(编号:YQ-2021013)。
作者简介:李波(1989—),男,甘肃定西人,博士,讲师,主要从事植物逆境生理学等研究工作。E-mail:libo708@126.com.
更新日期/Last Update: 2025-07-05