干旱区生态环境知识资源中心(Arid): Growth and physiology of ?Sunrise? papaya seedlings in response to salinity and humic acid

Arid

DOI	10.1590/1807-1929/agriambi.v27n5p352-358
	Growth and physiology of ?Sunrise? papaya seedlings in response to salinity and humic acid
	Targino, Vitor A.; Lopes, Adriano S.; Sousa, Valeria F. de O.; Henschel, Juliane M.; da Silva, Joao H. B.; Rodrigues, Lucas S.; de Medeiros, Wiliana J. F.; Batista, Diego S.; Dias, Thiago J.
通讯作者	Sousa, VFD
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:5 页码:352-358
英文摘要	Salinity is one of the major obstacles to agriculture in semi-arid regions, as it affects the physiological processes, growth, and yield of numerous crops. Hence, the application of salt stress attenuators is of paramount importance, as it enables the use of saline water for agricultural purposes. Among these, humic acid promotes the growth as well as water and nutrient uptake of plants. To this end, the present study evaluated the effects of humic acid on the growth and physiology of Carica papaya seedlings irrigated with saline water. The experiment followed the randomized block design with five levels of electrical conductivity (0.5, 1.15, 2.75, 4.35, and 5.0 dS m-1) and five concentrations of humic acid (0.5, 0.94, 2.0, 3.06, and 3.5 mL L-1). Growth, gas exchange, chlorophyll content, and chlorophyll a fluorescence were evaluated. Irrigation with 4.9 dS m-1 water and application of 3.05 mL L-1 humic acid promoted the growth of papaya seedlings. Irrigation with high-salinity water (4.96 and 3.09 dS m-1) coupled with the application of 3.05 and 2.21 mL L-1humic acid increased internal CO2 concentration, transpiration, instantaneous water use efficiency, carboxylation efficiency, and chlorophyll b content. Overall, humic acid (3.5 mL L-1) attenuated the deleterious effects of salt stress, promoting the growth and improving the performance of papaya seedlings under moderate salinity (4 dS m-1).
英文关键词	Carica papaya L moderate salinity soil conditioner saline stress humic substances
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:001021628900001
WOS关键词	FERTILIZER
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/2XILL650/398385
推荐引用方式 GB/T 7714	Targino, Vitor A.,Lopes, Adriano S.,Sousa, Valeria F. de O.,et al. Growth and physiology of ?Sunrise? papaya seedlings in response to salinity and humic acid[J],2023,27(5):352-358.
APA	Targino, Vitor A..,Lopes, Adriano S..,Sousa, Valeria F. de O..,Henschel, Juliane M..,da Silva, Joao H. B..,...&Dias, Thiago J..(2023).Growth and physiology of ?Sunrise? papaya seedlings in response to salinity and humic acid.REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL,27(5),352-358.
MLA	Targino, Vitor A.,et al."Growth and physiology of ?Sunrise? papaya seedlings in response to salinity and humic acid".REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL 27.5(2023):352-358.