|本期目录/Table of Contents|

[1]侯江涛,杨雅兰,赵莹菲,等.海藻精对NaCl胁迫下黄瓜幼苗抗性生理的影响[J].江苏农业科学,2022,50(13):165-170.
 Hou Jiangtao,et al.Effects of seaweed extract on resistance physiology of cucumber seedlings under NaCl stress[J].Jiangsu Agricultural Sciences,2022,50(13):165-170.
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海藻精对NaCl胁迫下黄瓜幼苗抗性生理的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第50卷
期数:
2022年第13期
页码:
165-170
栏目:
园艺与林学
出版日期:
2022-07-05

文章信息/Info

Title:
Effects of seaweed extract on resistance physiology of cucumber seedlings under NaCl stress
作者:
侯江涛 杨雅兰 赵莹菲 王诗赞 张志芳
商丘学院风景园林学院,河南商丘476000
Author(s):
Hou Jiangtaoet al
关键词:
黄瓜盐胁迫海藻精抗性生理光合特性抗氧化酶活性
Keywords:
-
分类号:
S642.201
DOI:
-
文献标志码:
A
摘要:
以黄瓜幼苗为研究对象,通过测定幼苗生长特性、叶片色素含量、光合特性、渗透调节物质、抗氧化酶活性及丙二醛(MDA)含量,研究不同浓度海藻精叶面喷施对NaCl胁迫下黄瓜幼苗抗性生理的影响。结果表明,200 mmol/L NaCl处理使黄瓜幼苗的正常生长受到显著抑制,而叶面喷施海藻精能有效缓解盐胁迫对黄瓜幼苗造成的不利影响,其中以2 000倍稀释液喷施效果最佳。叶面喷施海藻精后黄瓜幼苗叶片中过氧化物酶(POD)、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)活性均出现不同程度的提高;可溶性糖、可溶性蛋白和脯氨酸含量增加,MDA含量降低;叶片色素含量、净光合速率(Pn)、蒸腾速率(Tr)及气孔导度(Gs)增加,胞间CO2浓度(Ci)降低。因此推测通过叶面喷施海藻精溶液可能使盐胁迫下植株体内渗透调节物质含量增加,从而加强植物渗透调节能力;使叶片中抗氧化酶活性增强,MDA含量下降,以减少盐胁迫对膜的损伤程度;此外,叶片色素含量的升高有效增强了植物的光合特性,在这些因素的综合作用下提高了黄瓜幼苗的耐盐能力。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2022-01-18
基金项目:河南省科技攻关项目(编号:122102110178)。
作者简介:侯江涛(1980—),女,河南新乡人,硕士,副教授,从事园艺植物栽培及应用。E-mail:250647155@qq.com。
更新日期/Last Update: 2022-07-05