干旱区生态环境知识资源中心(Arid): Hydrogen peroxide in the induction of tolerance of guava seedlings to salt stress

Arid

DOI	10.5433/1679-0359.2023v44n2p739
	Hydrogen peroxide in the induction of tolerance of guava seedlings to salt stress
	Andrade Ferreira, Jean Telvio; de Lima, Geovani Soares; da Silva, Saulo Soares; dos Anjos Soares, Lauriane Almeida; de Fatima, Reynaldo Teodoro; Nobrega, Jackson Silva; Gheyi, Hans Raj; de Almeida, Fernandes Antonio; Torres Mendonca, Allysson Jonhnny
通讯作者	de Lima, GS
来源期刊	SEMINA-CIENCIAS AGRARIAS
ISSN	1676-546X
EISSN	1679-0359
出版年	2023
卷号	44 期号:2 页码:739-754
英文摘要	Guava cultivation plays a significant role in the socioeconomic development of the Brazilian semi-arid region, contributing to employment opportunities and income generation. However, this region often faces the challenge of high levels of dissolved salts in water sources, necessitating strategies to mitigate the adverse effects of salt stress on plants. This study aimed to assess the impact of foliar application of hydrogen peroxide on gas exchange, photochemical efficiency, growth, and quality of guava seedlings subjected to salt stress. The experiment was conducted under greenhouse conditions in Pombal - PB, Brazil, following a randomized block design. The treatments comprised a 5 x 4 factorial arrangement, representing five levels of electrical conductivity in the irrigation water (ECw: 0.3, 1.3, 2.3, 3.3, and 4.3 dS m(-1)) and four concentrations of hydrogen peroxide (H2O2: 0, 25, 50, and 75 mu M). Each treatment was replicated four times, with two plants per plot. Irrigation with water having an electrical conductivity of 0.3 dS m(-1) significantly inhibited gas exchange, photochemical efficiency, and growth of guava seedlings after 91 days of emergence. Foliar application of hydrogen peroxide at concentrations up to 75 mu M did not alleviate the effects of salt stress during the seedling formation phase of guava plants. Guava cv. Paluma was found to be sensitive to water salinity during the seedling formation phase, with a threshold level of 0.3 dS m(-1) and a decrease in the growth rate of 11.48% per unit increase in salinity.
英文关键词	Psidium guajava L. Abiotic stress Reactive oxygen species
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:001067594300018
WOS关键词	SALINE WATER ; CHLOROPLAST PIGMENTS ; IRRIGATION WATER ; GAS-EXCHANGE ; PHYSIOLOGY ; POTASSIUM ; GROWTH ; ATTENUATOR
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/2XILL650/398623
推荐引用方式 GB/T 7714	Andrade Ferreira, Jean Telvio,de Lima, Geovani Soares,da Silva, Saulo Soares,et al. Hydrogen peroxide in the induction of tolerance of guava seedlings to salt stress[J],2023,44(2):739-754.
APA	Andrade Ferreira, Jean Telvio.,de Lima, Geovani Soares.,da Silva, Saulo Soares.,dos Anjos Soares, Lauriane Almeida.,de Fatima, Reynaldo Teodoro.,...&Torres Mendonca, Allysson Jonhnny.(2023).Hydrogen peroxide in the induction of tolerance of guava seedlings to salt stress.SEMINA-CIENCIAS AGRARIAS,44(2),739-754.
MLA	Andrade Ferreira, Jean Telvio,et al."Hydrogen peroxide in the induction of tolerance of guava seedlings to salt stress".SEMINA-CIENCIAS AGRARIAS 44.2(2023):739-754.