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Basic Cognition of Melatonin Regulation of Plant Growth under Salt Stress: A Meta-Analysis

文献类型： 外文期刊

作者： Yan, Feiyu 1 ; Zhao, Hongliang 1 ; Wu, Longmei 2 ; Huang, Zhiwei 1 ; Niu, Yuan 1 ; Qi, Bo 1 ; Zhang, Linqing 1 ; Fan, Song 1 ; Ding, Yanfeng 3 ; Li, Ganghua 3 ; Zhang, Guoliang 1 ;

作者机构： 1.Huaiyin Inst Technol, Sch Life Sci & Food Engn, Huaian 223003, Peoples R China

2.Guangdong Acad Agr Sci, Rice Res Inst, Guangzhou 510640, Peoples R China

3.Nanjing Agr Univ, Coll Agron, Nanjing 210014, Peoples R China

4.State Key Lab Soil & Agr Sustainable Dev, Nanjing 210008, Peoples R China

5.Jiangsu Key Lab Attapulgite Clay Resource Utiliza, Huaian 223003, Peoples R China

关键词： melatonin; meta-analysis; plant growth; salt stress

期刊名称：ANTIOXIDANTS （ 影响因子：7.675； 五年影响因子：7.886 ）

ISSN：

年卷期： 2022 年 11 卷 8 期

页码：

收录情况： SCI

摘要： Salt stress severely restricts the growth of plants and threatens the development of agriculture throughout the world. Worldwide studies have shown that exogenous melatonin (MT) can effectively improve the growth of plants under salt stress. Through a meta-analysis of 549 observations, this study first explored the effects of salt stress characteristics and MT application characteristics on MT regulated plant growth under salt stress. The results show that MT has a wide range of regulatory effects on plant growth indicators under salt stress, of which the regulatory effect on root indexes is the strongest, and this regulatory effect is not species-specific. The intensity of salt stress did not affect the positive effect of MT on plant growth, but the application effect of MT in soil was stronger than that in rooting medium. This meta-analysis also revealed that the foliar application of a concentration between 100-200 mu M is the best condition for MT to enhance plant growth under salt stress. The results can inspire scientific research and practical production, while seeking the maximum improvement in plant salt tolerance under salt stress.

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