干旱区生态环境知识资源中心(Arid): Formation of guava seedlings under salt stress and foliar application of hydrogen peroxide

Arid

DOI	10.1590/1807-1929/agriambi.v28n2e276236
	Formation of guava seedlings under salt stress and foliar application of hydrogen peroxide
	da Silva, Saulo S.; de Lima, Geovani S.; Ferreira, Jean T. A.; Soares, Lauriane A. dos A.; Gheyi, Hans R.; Nobre, Reginaldo G.; da Silva, Fellype J. L.; de Mesquita, Evandro F.
通讯作者	da Silva, SS
来源期刊	REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
ISSN	1415-4366
EISSN	1807-1929
出版年	2024
卷号	28 期号:2
英文摘要	The occurrence of water with high concentrations of salts hinders the expansion of irrigated agriculture in the semi-arid region of the Brazilian Northeast, making it necessary to adopt strategies capable of minimizing the effects of salt stress on plants. In this context, the objective of present study was to evaluate the effects of hydrogen peroxide application on water relations, gas exchange, photosynthetic pigments, and growth of guava cv. Paluma under irrigation with saline waters in the seedling formation stage. A randomized block design was used, in a 5 x 4 factorial scheme, with three replicates, with five levels of electrical conductivity of 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). Irrigation water salinity above 0.3 dS m-1 increased electrolyte leakage in the leaf blade and reduced the relative water content, synthesis of photosynthetic pigments, gas exchange, and growth of seedlings of guava cv. Paluma, at 80 days after sowing. Foliar application of hydrogen peroxide at concentrations of up to 75 mu M reduces the relative water content in the leaf blade of guava seedlings and did not mitigate the effects of salt stress on guava plants in the seedling formation stage.
英文关键词	Psidium guajava L. salinity acclimatization
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:001143961300004
WOS关键词	GAS EXCHANGES ; PASSION-FRUIT ; SALINE WATER ; PHOTOSYNTHETIC PIGMENTS ; IRRIGATION STRATEGIES ; QUANTUM YIELD ; GROWTH ; DROUGHT ; H2O2
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/2XILL650/405354
推荐引用方式 GB/T 7714	da Silva, Saulo S.,de Lima, Geovani S.,Ferreira, Jean T. A.,et al. Formation of guava seedlings under salt stress and foliar application of hydrogen peroxide[J],2024,28(2).
APA	da Silva, Saulo S..,de Lima, Geovani S..,Ferreira, Jean T. A..,Soares, Lauriane A. dos A..,Gheyi, Hans R..,...&de Mesquita, Evandro F..(2024).Formation of guava seedlings under salt stress and foliar application of hydrogen peroxide.REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL,28(2).
MLA	da Silva, Saulo S.,et al."Formation of guava seedlings under salt stress and foliar application of hydrogen peroxide".REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL 28.2(2024).