干旱区生态环境知识资源中心(Arid): Hydrogen peroxide and saline nutrient solution in hydroponic zucchini culture

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DOI	10.5433/1679-0359.2022v43n3p1167
	Hydrogen peroxide and saline nutrient solution in hydroponic zucchini culture
	Dantas, Maila Vieira; de Lima, Geovani Soares; Gheyi, Hans Raj; Silva, Luderlandio de Andrade; Conceicao Silva, Petterson Costa; dos Anjos Soares, Lauriane Almeida; Pereira Lopes, Iracy Amelia; Roque, Iara Almeida
通讯作者	de Lima, GS
来源期刊	SEMINA-CIENCIAS AGRARIAS
ISSN	1676-546X
EISSN	1679-0359
出版年	2022
卷号	43 期号:3 页码:1167-1186
英文摘要	Saline water has been used in irrigation due to the limited availability of fresh water, especially in arid and semi-arid regions. However, the use of this type of water can affect crop growth and development. Studies have tested the use of chemical conditioners to minimize the negative effects of salinity on plants. In this scenario, the present study examined the role of hydrogen peroxide in mitigating the negative effects of salt stress on zucchini plants grown in a hydroponic system. The study was carried out in a greenhouse in Pombal - PB, Brazil. The NFT (nutrient film technique) hydroponic system was employed. A randomized complete experimental design was set up with a 4 x 4 factorial arrangement consisting of four levels of electrical conductivity in the nutrient solution (ECns: 2.1 [control), 3.6, 5.1, and 6.6 dS m(-1)) and four concentrations of hydrogen peroxide (H2O2 : 0, 20, 40, and 60 mu M), in three replicates. Foliar spraying with H2O2 at 60 and 40 mu M associated with the nutrient solution of 2.1 dS m(-1) increased stem diameter and root length, respectively, at 47 days after transplanting. However, at ECns higher than 2.1 dS m(-1), the application of H2O2 at the concentrations of 60 and 40 mu M intensified salt stress, reducing stem diameter and root length. Nutrient solution salinity levels above 2.1 dS m(-1) reduce photosynthetic pigments; the number of leaves; leaf area; the length of the main branch; and the dry biomass of stems, leaves, and roots of zucchini plants. Chlorophyll b and carotenoid contents are the variables most sensitive to changes in salinity levels.
英文关键词	Cross-tolerance Cucurbita pepo L. ROS Salinity
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:000772228700003
WOS关键词	PHOTOSYNTHETIC PIGMENTS ; WATER SALINITY ; SALT STRESS ; IRRIGATION ; NITROGEN ; GROWTH ; POTASSIUM
WOS类目	Agriculture, Multidisciplinary
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/2XILL650/394476
推荐引用方式 GB/T 7714	Dantas, Maila Vieira,de Lima, Geovani Soares,Gheyi, Hans Raj,et al. Hydrogen peroxide and saline nutrient solution in hydroponic zucchini culture[J],2022,43(3):1167-1186.
APA	Dantas, Maila Vieira.,de Lima, Geovani Soares.,Gheyi, Hans Raj.,Silva, Luderlandio de Andrade.,Conceicao Silva, Petterson Costa.,...&Roque, Iara Almeida.(2022).Hydrogen peroxide and saline nutrient solution in hydroponic zucchini culture.SEMINA-CIENCIAS AGRARIAS,43(3),1167-1186.
MLA	Dantas, Maila Vieira,et al."Hydrogen peroxide and saline nutrient solution in hydroponic zucchini culture".SEMINA-CIENCIAS AGRARIAS 43.3(2022):1167-1186.