Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência e Agrotecnologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542022000100201 |
Resumo: | ABSTRACT 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 × 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. |
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Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruitOsmoregulationPassiflora edulis Sims.salt stressABSTRACT 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 × 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.Editora da UFLA2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542022000100201Ciência e Agrotecnologia v.46 2022reponame:Ciência e Agrotecnologia (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLA10.1590/1413-7054202246022621info:eu-repo/semantics/openAccessPinheiro,Francisco Wesley AlvesLima,Geovani Soares deGheyi,Hans RajSoares,Lauriane Almeida dos AnjosNobre,Reginaldo GomesFernandes,Pedro Dantaseng2022-03-07T00:00:00Zoai:scielo:S1413-70542022000100201Revistahttp://www.scielo.br/cagroPUBhttps://old.scielo.br/oai/scielo-oai.php||renpaiva@dbi.ufla.br|| editora@editora.ufla.br1981-18291413-7054opendoar:2022-11-22T16:31:47.476411Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit |
title |
Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit |
spellingShingle |
Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit Pinheiro,Francisco Wesley Alves Osmoregulation Passiflora edulis Sims. salt stress |
title_short |
Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit |
title_full |
Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit |
title_fullStr |
Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit |
title_full_unstemmed |
Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit |
title_sort |
Brackish water irrigation strategies and potassium fertilization in the cultivation of yellow passion fruit |
author |
Pinheiro,Francisco Wesley Alves |
author_facet |
Pinheiro,Francisco Wesley Alves Lima,Geovani Soares de Gheyi,Hans Raj Soares,Lauriane Almeida dos Anjos Nobre,Reginaldo Gomes Fernandes,Pedro Dantas |
author_role |
author |
author2 |
Lima,Geovani Soares de Gheyi,Hans Raj Soares,Lauriane Almeida dos Anjos Nobre,Reginaldo Gomes Fernandes,Pedro Dantas |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Pinheiro,Francisco Wesley Alves Lima,Geovani Soares de Gheyi,Hans Raj Soares,Lauriane Almeida dos Anjos Nobre,Reginaldo Gomes Fernandes,Pedro Dantas |
dc.subject.por.fl_str_mv |
Osmoregulation Passiflora edulis Sims. salt stress |
topic |
Osmoregulation Passiflora edulis Sims. salt stress |
description |
ABSTRACT 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 × 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. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542022000100201 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542022000100201 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1413-7054202246022621 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Editora da UFLA |
publisher.none.fl_str_mv |
Editora da UFLA |
dc.source.none.fl_str_mv |
Ciência e Agrotecnologia v.46 2022 reponame:Ciência e Agrotecnologia (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Ciência e Agrotecnologia (Online) |
collection |
Ciência e Agrotecnologia (Online) |
repository.name.fl_str_mv |
Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
||renpaiva@dbi.ufla.br|| editora@editora.ufla.br |
_version_ |
1799874971644723200 |