干旱区生态环境知识资源中心(Arid): Physiological changes of pomegranate seedlings under salt stress and nitrogen fertilization

Arid

DOI	10.1590/1807-1929/agriambi.v25n7p453-459
	Physiological changes of pomegranate seedlings under salt stress and nitrogen fertilization
	Soares, Lauriane A. dos A.; de Oliveira, Sabrina G.; de Lima, Geovani S.; Fernandes, Pedro D.; Araujo, Railene H. C. R.; Fernandes, Eliene A.
通讯作者	Soares, LAD (corresponding author), Univ Fed Campina Grande, Ctr Ciencias & Tecnol Agroalimentar, Pombal, PB, Brazil.
来源期刊	REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
ISSN	1415-4366
EISSN	1807-1929
出版年	2021
卷号	25 期号:7 页码:453-459
英文摘要	The semi-arid region of northeastern Brazil is characterized by scarce and irregular rainfall; in addition, the waters available for irrigation commonly contain high concentrations of salts, causing osmotic and/or ionic effects on plants. Thus, it is important to identify species adapted to the conditions of scarcity and lower quality of irrigation waters. In this context, the objective of this study was to evaluate the physiological changes of pomegranate when subjected to irrigation with saline waters and different nitrogen doses under greenhouse conditions. The study was carried out using a randomized block design in a 5 x 5 factorial arrangement, whose treatments consisted of five values of electrical conductivity of irrigation water -ECw (0.3; 1.8; 3.3; 4.8 and 6.3 dS m(-1)) and five nitrogen doses (50, 75; 100; 125 and 150% of the recommended dose for pot experiments), with four replicates. Water salinity from 0.3 dS m(-1) reduced the CO2 assimilation rate, chlorophyll b concentration and total dry mass of pomegranate seedlings. However, stomatal conductance and leaf transpiration were not influenced by electrical conductivity of up to 4.0 and 3.6 dS m(-1), respectively. The increase in intercellular CO2 concentration in pomegranate is related to factors of non-stomatal origin. Nitrogen doses did not attenuate the deleterious effects of salt stress on gas exchange, chlorophyll a concentrations and electrolyte leakage of pomegranate seedlings.
英文关键词	Punica granatum L. photosynthesis mineral fertilization
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:000639772100003
WOS关键词	WEST-INDIAN CHERRY ; GAS EXCHANGES ; GROWTH ; WATER ; SALINITY ; PLANTS ; CITRUS ; YIELD ; NACL
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/2XILL650/351578
作者单位	[Soares, Lauriane A. dos A.; de Oliveira, Sabrina G.; Araujo, Railene H. C. R.; Fernandes, Eliene A.] Univ Fed Campina Grande, Ctr Ciencias & Tecnol Agroalimentar, Pombal, PB, Brazil; [de Lima, Geovani S.; Fernandes, Pedro D.] Univ Fed Campina Grande, Programa Posgrad Engn Agr, Campina Grande, Paraiba, Brazil
推荐引用方式 GB/T 7714	Soares, Lauriane A. dos A.,de Oliveira, Sabrina G.,de Lima, Geovani S.,et al. Physiological changes of pomegranate seedlings under salt stress and nitrogen fertilization[J],2021,25(7):453-459.
APA	Soares, Lauriane A. dos A.,de Oliveira, Sabrina G.,de Lima, Geovani S.,Fernandes, Pedro D.,Araujo, Railene H. C. R.,&Fernandes, Eliene A..(2021).Physiological changes of pomegranate seedlings under salt stress and nitrogen fertilization.REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL,25(7),453-459.
MLA	Soares, Lauriane A. dos A.,et al."Physiological changes of pomegranate seedlings under salt stress and nitrogen fertilization".REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL 25.7(2021):453-459.