干旱区生态环境知识资源中心(Arid): Gas exchange, photosynthetic pigments, and growth of hydroponic okra under salt stress and salicylic acid

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DOI	10.1590/1807-1929/agriambi.v27n9p673-681
	Gas exchange, photosynthetic pigments, and growth of hydroponic okra under salt stress and salicylic acid
	Mendonca, Allysson J. T.; de Lima, Geovani S.; Soares, Lauriane A. dos A.; Oliveira, Valeska K. N.; Gheyi, Hans R.; Silva, Luderlandio de A.; de Almeida, Fernandes A.; Fernandes, Pedro D.
通讯作者	Mendonça, AJT
来源期刊	REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
ISSN	1415-4366
EISSN	1807-1929
出版年	2023
卷号	27 期号:9 页码:673-681
英文摘要	The high concentrations of salts present in the water sources of the Brazilian Northeastern semi-arid region stand out as one of the limiting factors for agricultural production, contributing to soil salinization and/or sodification. Thus, it is extremely important to identify strategies to mitigate the effects of salt stress on plants, such as the foliar application of salicylic acid. In this context, the objective of the present study was to evaluate the effect of foliar application of salicylic acid as an attenuator of salt stress on leaf gas exchange, water relations, photosynthetic pigments, and growth of okra cv. Caninde grown in a hydroponic system. The experiment was conducted in a greenhouse, in Pombal, PB, Brazil. The treatments consisted of four levels of electrical conductivity of the nutrient solution -ECns (3.0, 5.0, 7.0, and 9.0 dS m-1) and four concentrations of salicylic acid -SA (0, 1.2, 2.4, and 3.6 mM) distributed in a completely randomized design in a split-plot scheme, considering the ECns levels as the plots and SA concentrations as the subplots, with four replicates and two plants per plot. ECns from 3.0 dS m-1 inhibited the synthesis of photosynthetic pigments, leaf gas exchange, and growth of okra cv. Caninde. Foliar application of salicylic acid at concentrations of up to 3.6 mM does not alleviate the effects of salt stress on water relations, gas exchange and growth of okra. Salicylic acid at a concentration of 1.8 mM stimulates chlorophyll a and b biosynthesis in okra under ECns of 3.0 and 4.0 dS m-1, respectively.
英文关键词	Abelmoschus esculentus L Moench salinity soilless cultivation phytohormone
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001025750900004
WOS关键词	WATER ; SALINITY
WOS类目	Agricultural Engineering
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398390
推荐引用方式 GB/T 7714	Mendonca, Allysson J. T.,de Lima, Geovani S.,Soares, Lauriane A. dos A.,et al. Gas exchange, photosynthetic pigments, and growth of hydroponic okra under salt stress and salicylic acid[J],2023,27(9):673-681.
APA	Mendonca, Allysson J. T..,de Lima, Geovani S..,Soares, Lauriane A. dos A..,Oliveira, Valeska K. N..,Gheyi, Hans R..,...&Fernandes, Pedro D..(2023).Gas exchange, photosynthetic pigments, and growth of hydroponic okra under salt stress and salicylic acid.REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL,27(9),673-681.
MLA	Mendonca, Allysson J. T.,et al."Gas exchange, photosynthetic pigments, and growth of hydroponic okra under salt stress and salicylic acid".REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL 27.9(2023):673-681.