[1]杨若鹏,毕红才,李杰.水杨酸对黄瓜种子萌发及干旱胁迫下幼苗生长的影响[J].北方园艺,2018,42(06):23-29.[doi:10.11937/bfyy.20172494]
　YANG Ruopeng,BI Hongcai,LI Jie.Effects of Salicylic Acid on Seed Germination and Seedling Growth Under Drought Stress in Cucumber[J].Northern Horticulture,2018,42(06):23-29.[doi:10.11937/bfyy.20172494]
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水杨酸对黄瓜种子萌发及干旱胁迫下幼苗生长的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第42卷 期数: 2018年06 页码: 23-29 栏目: 出版日期: 2018-03-25
Title:
Effects of Salicylic Acid on Seed Germination and Seedling Growth Under  Drought Stress in Cucumber
作者:
杨若鹏1; 2; 毕红才1; 李杰1; 2
（1.红河学院 生命科学与技术学院,云南 蒙自 661100； 2.云南省高校农作物优质高效栽培与安全控制重点实验室,云南 蒙自 661100）
Author(s):
YANG Ruopeng1; 2; BI Hongcai1; LI Jie1; 2
(1.College of Life Science and Technology,Honghe University,Mengzi,Yunnan 661100；2.Key Laboratory of Crop High Quality and Efficient Cultivation and Security Control of College in Yunnan Province,Mengzi,Yunnan 661100)
关键词:
水杨酸; 干旱胁迫; 保护酶; 渗透调节物质
Keywords:
salicylic acid; drought stress; protective enzyme; osmotic adjustment substance
DOI:
10.11937/bfyy.20172494
文献标志码:
A
摘要:
以黄瓜种子为试材，采用浓度为1.0、2.0、3.0、4.0 mmol?L-1的水杨酸浸种处理黄瓜种子，研究了不同浓度水杨酸对黄瓜种子萌发的影响及干旱胁迫下黄瓜幼苗抗干旱的能力。结果表明：1.0～2.0 mmol?L-1水杨酸浸种处理可以促进黄瓜种子的萌发能力和幼苗生长，而3.0～4.0 mmol?L-1水杨酸抑制黄瓜种子萌发，且以1.0 mmol?L-1水杨酸处理黄瓜发芽特性效果最佳。1.0 mmol?L-1水杨酸引发可以提高干旱胁迫下黄瓜幼苗过氧化氢酶（CAT）、超氧化物歧化酶（SOD）、过氧化物酶（POD）活性，且可溶性糖、可溶性蛋白质、游离脯氨酸含量显著增强，而丙二醛（MDA）含量显著下降。说明1.0 mmol?L-1水杨酸在缓解干旱胁迫对黄瓜生长阻碍的效果最好。
Abstract:
The cucumber seeds were taken as materials,and treated by 4 kinds of concentrations of salicylic acid 1.0 mmol?L-1,2.0 mmol?L-1,3.0 mmol?L-1,4.0 mmol?L-1,effects of different concentrations of salicylic acid on seed germination of cucumber and drought resistance ability of seedlings growth under drought stress were studied.The results showed that 1.0-2.0 mmol?L-1 salicylic acid treatment could promote the germination ability and seedling growth of cucumber seeds,and 3.0-4.0 mmol?L-1 〖JP2〗salicylic acid inhibited the germination of cucumber seeds.And 1.0 mmol?L-1 salicylic acid treatment on germination characteristics of cucumber was the best.1.0 mmol?L-1 salicylic acid could improve cucumber seedlings of the activities of CAT,SOD and POD,and the contents of soluble sugar,soluble protein and free proline were significantly increased,while the content of MDA was significantly decreased.So 1.0 mmol?L-1 salicylic acid had the best effect on the growth of cucumber under drought stress.

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备注/Memo

第一作者简介：杨若鹏（1983-），男，硕士，助教，研究方向为植物逆境生理。E-mail:yrp_biology2@126.com.责任作者：李杰（1987-），男，博士，讲师，研究方向为设施园艺。E-mail:gsau23@126.com.基金项目：云南省教育厅科学研究基金资助项目（2017ZZX119)。收稿日期：2017-09-27

更新日期/Last Update: 2018-03-30