Salicylic acid alleviates the effects of salt stress on the physiology, growth, and production of hydroponic okra

IF 1.9 4区农林科学 Q3 ENVIRONMENTAL SCIENCES

Arid Land Research and Management Pub Date : 2023-03-15 DOI:10.1080/15324982.2023.2188314

André Alisson Rodrigues da Silva, Pedro Francisco do Nascimento Sousa, Geovani Soares de Lima, L. A. A. Soares, H. Gheyi, Luderlândio de Andrade Silva, Josinaldo Lopes Araújo Rocha, Carlos Alberto Vieira de Azevedo

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引用次数: 1

Abstract

Abstract Application of salicylic acid can enable the use of brackish water in the hydroponic cultivation of okra in arid and semi-arid regions. In this context, the objective of the present study was to evaluate the effect of foliar application of salicylic acid in mitigating the impacts of salt stress on the physiology, growth, and production of “Canindé” okra cultivated in a hydroponic system. The experiment was carried out in a greenhouse, using an NFT—Nutrient Film Technique hydroponic system. A completely randomized design was adopted in a split-plot scheme, with four levels of electrical conductivity of the nutrient solution—ECns (2.1, 3.6, 5.1, and 6.6 dS m−1) considered as plots and four concentrations of salicylic acid—SA (0, 1.2, 2.4, and 3.6 mM), considered as subplots, with four replications, each of which consisting of two plants. Foliar application of salicylic acid at a concentration of 1.2 mM attenuated the harmful effects of salt stress on the physiology, growth, and production components of “Canindé” okra cultivated in a hydroponic system with ECns of up to 6.6 dS m−1. Plants cultivated with ECns of 6.6 dS m−1 and salicylic acid at a concentration of 1.2 mM obtained an increase of 11.13% (36.4 g per plant) in total production per plant compared to plants cultivated with the same ECns level and without application of salicylic acid. These results demonstrate that salicylic acid, when supplied by foliar application at adequate concentrations, can act as a signaling molecule and reduce the effects of salt stress on hydroponic okra.

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水杨酸可减轻盐胁迫对水培秋葵生理、生长和生产的影响

摘要在干旱、半干旱区水培秋葵时，施用水杨酸可以实现微咸水的利用。在此背景下，本研究的目的是评估水杨酸叶面施用在减轻盐胁迫对水培系统栽培的“canind”秋葵生理、生长和生产的影响。试验在温室内进行，采用nft -营养膜技术水培系统。采用完全随机设计的分样方案，将营养液- ecns的4个电导率水平(2.1、3.6、5.1和6.6 dS m−1)作为样区，将水杨酸- sa的4个浓度(0、1.2、2.4和3.6 mM)作为亚样区，进行4个重复，每个重复由2株植物组成。叶面施用浓度为1.2 mM的水杨酸可减轻盐胁迫对“canind”秋葵生理、生长和生产成分的有害影响，其ECns高达6.6 dS m−1。在ECns为6.6 dS m−1和水杨酸浓度为1.2 mM的条件下栽培的植株，其单株总产量比在相同ECns水平下未施用水杨酸的植株提高11.13% (36.4 g /株)。这些结果表明，水杨酸可以作为一种信号分子，在适当浓度的叶面施用时降低盐胁迫对水培秋葵的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Arid Land Research and Management 环境科学-环境科学

CiteScore

3.80

自引率

7.10%

发文量

审稿时长

9 months

期刊介绍： Arid Land Research and Management, a cooperating journal of the International Union of Soil Sciences , is a common outlet and a valuable source of information for fundamental and applied research on soils affected by aridity. This journal covers land ecology, including flora and fauna, as well as soil chemistry, biology, physics, and other edaphic aspects. The journal emphasizes recovery of degraded lands and practical, appropriate uses of soils. Reports of biotechnological applications to land use and recovery are included. Full papers and short notes, as well as review articles and book and meeting reviews are published.