|本期目录/Table of Contents|

[1]王佳乐,步凡,何佳丽,等.铜胁迫对苹果幼苗生长及生理特性的影响[J].江苏农业科学,2023,51(16):105-113.
 Wang Jiale,et al.Influences of copper stress on growth and physiological characteristics of apple seedlings[J].Jiangsu Agricultural Sciences,2023,51(16):105-113.
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铜胁迫对苹果幼苗生长及生理特性的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第51卷
期数:
2023年第16期
页码:
105-113
栏目:
园艺与林学
出版日期:
2023-08-20

文章信息/Info

Title:
Influences of copper stress on growth and physiological characteristics of apple seedlings
作者:
王佳乐13 步凡12 何佳丽13 吕德国13
1.沈阳农业大学园艺学院,辽宁沈阳 110866; 2.广东省德庆县农业农村局,广东德庆 526600;3.辽宁省果树品质发育与调控重点实验室,辽宁沈阳 110866
Author(s):
Wang Jialeet al
关键词:
苹果胁迫幼苗生长生理响应
Keywords:
-
分类号:
S661.101
DOI:
-
文献标志码:
A
摘要:
通过研究不同供铜(Cu)水平对苹果幼苗生长、光合作用、Cu富集情况和氧化应激反应的影响,探究苹果苗Cu胁迫阈值,旨在为苹果抗逆栽培提供理论指导。以寒富苹果为试材,设置不同浓度(60、180、300、600、900 mg/kg)Cu处理,处理后60 d取样,测定幼苗各组织生物量、根系形态、光合特性、各器官Cu含量以及总Cu含量、活性氧、抗氧化物含量和抗氧化物酶活性。结果表明,当Cu胁迫浓度超过300 mg/kg时,幼苗各器官生物量显著降低,根系形态指标(总根长、根总表面积、根总体积)、叶片净光合速率、气孔导度、PSⅡ最大光化学效率、光合性能指数均呈下降趋势。各组织Cu含量为根>叶>茎。随着Cu浓度提高,幼苗各组织中活性氧物质积累,总硫醇、可溶性酚、抗坏血酸等物质含量及超氧化物歧化酶、过氧化氢酶等酶活性以300 mg/kg为临界点,呈先增高后降低趋势。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2022-05-15
基金项目:辽宁省兴辽英才计划-青年拔尖人才项目(编号:XLYC1907105);辽宁省教育厅科学研究经费项目(编号:LSNQN201916);国家现代农业产业技术体系建设专项(编号:CARS-28)。
作者简介:王佳乐(1998—),男,甘肃平凉人,硕士研究生,主要从事果树栽培与生理生态研究。E-mail:wjl1655294867@163.com。
通信作者:何佳丽,博士,副教授,主要从事果树栽培与生理生态研究。E-mail:hejiali1017@163.com。
更新日期/Last Update: 2023-08-20