干旱区生态环境知识资源中心(Arid): Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit

Arid

DOI	10.1590/1413-7054202246022621
	Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit
	Alves Pinheiro, Francisco Wesley; de Lima, Geovani Soares; Gheyi, Hans Raj; dos Anjos Soares, Lauriane Almeida; Nobre, Reginaldo Gomes; Fernandes, Pedro Dantas
通讯作者	de Lima, GS
来源期刊	CIENCIA E AGROTECNOLOGIA
ISSN	1413-7054
EISSN	1981-1829
出版年	2022
卷号	46
英文摘要	The high concentration of salts in water sources in the semi-arid region of the Brazilian Northeast stands out as one of the limiting factors for the expansion of irrigated cultivation of fruit crops. Thus, the search for a strategy capable of mitigating the effect of saline stress on plants is of paramount importance. In this context, the objective of this study was to evaluate the gas exchange and yield of yellow passion fruit cultivated under brackish water irrigation strategies and potassium fertilization in two production cycles. The experiment was conducted under field conditions, using the randomized block design in a 6 x 2 factorial scheme, corresponding to six strategies of irrigation with brackish water applied in the different phenological stages of the crop: WS - without stress, irrigation with low-salinity water throughout the crop cycle; irrigation with high-salinity water only in the vegetative stage - VE; flowering stage - FL; fruiting stage - FR; and successively in the vegetative and flowering stages - VE/FL; and vegetative and fruiting stages - VE/FR, and two potassium doses (60 and 100% of the recommendation), with four replicates and three plants per plot. In irrigation, water with high (4.0 dS m(-1)) or low (1.3 dS m(-1)) electrical conductivity was used. The potassium dose of 100% recommendation corresponded to 345 g of K2O per plant per year. The yellow passion fruit 'BRS GA1' was more sensitive to salt stress applied successively in the vegetative and flowering stages and vegetative and fruiting stages, showing reductions in the intercellular CO2 concentration, CO2 assimilation rate, instantaneous water use efficiency, number of fruits, and yield. Irrigation with water of 4.0 dS m(-1) in the fruiting stage is a promising strategy, as it does not compromise production. The dose of potassium equivalent to 60% was better than 100% of recommendation in terms of gas exchange and yield.
英文关键词	Osmoregulation Passiflora edulis Sims. salt stress
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:000768808500001
WOS关键词	HIGHER ELECTRICAL-CONDUCTIVITY ; WEST-INDIAN CHERRY ; SALINE WATER ; GAS EXCHANGES ; PLANT-GROWTH ; SALT STRESS ; PEPPER ; L. ; GENOTYPES ; QUALITY
WOS类目	Agriculture, Multidisciplinary ; Agronomy
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/2XILL650/392147
推荐引用方式 GB/T 7714	Alves Pinheiro, Francisco Wesley,de Lima, Geovani Soares,Gheyi, Hans Raj,et al. Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit[J],2022,46.
APA	Alves Pinheiro, Francisco Wesley,de Lima, Geovani Soares,Gheyi, Hans Raj,dos Anjos Soares, Lauriane Almeida,Nobre, Reginaldo Gomes,&Fernandes, Pedro Dantas.(2022).Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit.CIENCIA E AGROTECNOLOGIA,46.
MLA	Alves Pinheiro, Francisco Wesley,et al."Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit".CIENCIA E AGROTECNOLOGIA 46(2022).