Green onion production under strategies of replacement and frequencies of circulation of brackish nutritive solutions
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/41956 |
Resumo: | The cultivation of vegetables in semi-arid regions, especially in the context of the use of brackish water, has been made possible by the use of the hydroponics technique. Thus, two experiments were carried out between December 2016 and January 2017 in a protected environment at the Federal Rural University of Pernambuco (UFRPE), Recife – PE, Brazil (8° 1”7” South latitude and 34° 56” 53” West longitude, and average altitude of 6.5 m), aiming at evaluating the production of green onion (cv. “Todo dia” Evergreen - Nebuka) in plants exposed to brackish nutrient solution (1.5, 3.0, 4.5, 6.0, 7.5 and 9.0 dS m-1), applied at two frequencies of circulation (twice a day - at 8 and 16 hours, and three times per day - at 8, 12 and 16 hours) in low-cost hydroponics system. In Experiment I, the nutrient solution evapotranspirated by the plants was replaced with the respective brackish water used in its preparation, and in Experiment II with UFRPE supply water (0.12 dS m-1). In both cases, a completely randomized experimental design was used, in a 6 x 2 factorial scheme, with five replications. It was concluded that under replacement with brackish water, the increase in the frequency of circulation attenuated the losses imposed by the salinity to the biometric variables and of the production of fresh and dry phytomass of the plants; the water supply replenishment had a greater mitigating role in relation to the damage caused by the salinity with the increase of the electrical conductivity of the nutrient solution. |
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Green onion production under strategies of replacement and frequencies of circulation of brackish nutritive solutionsProdução de cebolinha sob estratégias de reposição e frequências de circulação de soluções nutritivas salobrasAllium fistulosum L.Cultivation without soil.Salinity.The cultivation of vegetables in semi-arid regions, especially in the context of the use of brackish water, has been made possible by the use of the hydroponics technique. Thus, two experiments were carried out between December 2016 and January 2017 in a protected environment at the Federal Rural University of Pernambuco (UFRPE), Recife – PE, Brazil (8° 1”7” South latitude and 34° 56” 53” West longitude, and average altitude of 6.5 m), aiming at evaluating the production of green onion (cv. “Todo dia” Evergreen - Nebuka) in plants exposed to brackish nutrient solution (1.5, 3.0, 4.5, 6.0, 7.5 and 9.0 dS m-1), applied at two frequencies of circulation (twice a day - at 8 and 16 hours, and three times per day - at 8, 12 and 16 hours) in low-cost hydroponics system. In Experiment I, the nutrient solution evapotranspirated by the plants was replaced with the respective brackish water used in its preparation, and in Experiment II with UFRPE supply water (0.12 dS m-1). In both cases, a completely randomized experimental design was used, in a 6 x 2 factorial scheme, with five replications. It was concluded that under replacement with brackish water, the increase in the frequency of circulation attenuated the losses imposed by the salinity to the biometric variables and of the production of fresh and dry phytomass of the plants; the water supply replenishment had a greater mitigating role in relation to the damage caused by the salinity with the increase of the electrical conductivity of the nutrient solution.O cultivo de hortaliças em regiões semiáridas, especialmente no contexto de uso de águas salobras, tem sido viabilizado pelo uso da técnica da hidroponia. Diante disto, entre janeiro de 2016 e abril de 2017, foram conduzidos dois experimentos em ambiente protegido na Universidade Federal Rural de Pernambuco (UFRPE), Recife-PE (8° 1”7” Sul e 34° 56” 53” Oeste, altitude média de 6,5 m), objetivando-se avaliar a produção da cebolinha (cv. Todo ano Evergreen - Nebuka) em plantas expostas a soluções nutritivas salobras (1,5; 3,0; 4,5; 6,0; 7,5 e 9,0 dS m-1) aplicadas em duas frequências de circulação (duas vezes ao dia - às 8 e às 16 horas; e três vezes ao dia - às 8, 12 e 16 horas). Em ambos os casos, utilizou-se um delineamento experimental inteiramente casualizado, em esquema fatorial 6 x 2, com cinco repetições. No Experimento I, a lâmina de solução nutritiva evapotranspirada pelas plantas foi reposta com a respectiva água salobra utilizada no seu preparo e, no Experimento II, com água de abastecimento da UFRPE (0,12 dS m-1). Concluiu-se que sob reposição com água salobra, o aumento da frequência de circulação atenuou as perdas impostas pela salinidade às variáveis biométricas e de produção de fitomassa fresca e seca das plantas; a reposição com água de abastecimento passou a ter maior papel mitigador em relação ao dano causado pela salinidade com o aumento da condutividade elétrica da solução nutritiva.EDUFU2019-06-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/4195610.14393/BJ-v35n3a2019-41956Bioscience Journal ; Vol. 35 No. 3 (2019): May/June; 796-805Bioscience Journal ; v. 35 n. 3 (2019): May/June; 796-8051981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/41956/26116Brazil; ContemporaryCopyright (c) 2019 Fernando José da Silva Júnior, José Amilton Santos Júnior, Nildo da Silva Dias, Hans Raj Gheyi, Rene Chipana Rivera, Gerônimo Ferreira da Silva, Cleyton dos Santos Fernandeshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessda Silva Júnior, Fernando JoséSantos Júnior, José Amiltonda Silva Dias, NildoRaj Gheyi, HansChipana Rivera, ReneFerreira da Silva, Gerônimodos Santos Fernandes, Cleyton2022-02-01T12:55:02Zoai:ojs.www.seer.ufu.br:article/41956Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-02-01T12:55:02Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Green onion production under strategies of replacement and frequencies of circulation of brackish nutritive solutions Produção de cebolinha sob estratégias de reposição e frequências de circulação de soluções nutritivas salobras |
title |
Green onion production under strategies of replacement and frequencies of circulation of brackish nutritive solutions |
spellingShingle |
Green onion production under strategies of replacement and frequencies of circulation of brackish nutritive solutions da Silva Júnior, Fernando José Allium fistulosum L. Cultivation without soil. Salinity. |
title_short |
Green onion production under strategies of replacement and frequencies of circulation of brackish nutritive solutions |
title_full |
Green onion production under strategies of replacement and frequencies of circulation of brackish nutritive solutions |
title_fullStr |
Green onion production under strategies of replacement and frequencies of circulation of brackish nutritive solutions |
title_full_unstemmed |
Green onion production under strategies of replacement and frequencies of circulation of brackish nutritive solutions |
title_sort |
Green onion production under strategies of replacement and frequencies of circulation of brackish nutritive solutions |
author |
da Silva Júnior, Fernando José |
author_facet |
da Silva Júnior, Fernando José Santos Júnior, José Amilton da Silva Dias, Nildo Raj Gheyi, Hans Chipana Rivera, Rene Ferreira da Silva, Gerônimo dos Santos Fernandes, Cleyton |
author_role |
author |
author2 |
Santos Júnior, José Amilton da Silva Dias, Nildo Raj Gheyi, Hans Chipana Rivera, Rene Ferreira da Silva, Gerônimo dos Santos Fernandes, Cleyton |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
da Silva Júnior, Fernando José Santos Júnior, José Amilton da Silva Dias, Nildo Raj Gheyi, Hans Chipana Rivera, Rene Ferreira da Silva, Gerônimo dos Santos Fernandes, Cleyton |
dc.subject.por.fl_str_mv |
Allium fistulosum L. Cultivation without soil. Salinity. |
topic |
Allium fistulosum L. Cultivation without soil. Salinity. |
description |
The cultivation of vegetables in semi-arid regions, especially in the context of the use of brackish water, has been made possible by the use of the hydroponics technique. Thus, two experiments were carried out between December 2016 and January 2017 in a protected environment at the Federal Rural University of Pernambuco (UFRPE), Recife – PE, Brazil (8° 1”7” South latitude and 34° 56” 53” West longitude, and average altitude of 6.5 m), aiming at evaluating the production of green onion (cv. “Todo dia” Evergreen - Nebuka) in plants exposed to brackish nutrient solution (1.5, 3.0, 4.5, 6.0, 7.5 and 9.0 dS m-1), applied at two frequencies of circulation (twice a day - at 8 and 16 hours, and three times per day - at 8, 12 and 16 hours) in low-cost hydroponics system. In Experiment I, the nutrient solution evapotranspirated by the plants was replaced with the respective brackish water used in its preparation, and in Experiment II with UFRPE supply water (0.12 dS m-1). In both cases, a completely randomized experimental design was used, in a 6 x 2 factorial scheme, with five replications. It was concluded that under replacement with brackish water, the increase in the frequency of circulation attenuated the losses imposed by the salinity to the biometric variables and of the production of fresh and dry phytomass of the plants; the water supply replenishment had a greater mitigating role in relation to the damage caused by the salinity with the increase of the electrical conductivity of the nutrient solution. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-06-11 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/41956 10.14393/BJ-v35n3a2019-41956 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/41956 |
identifier_str_mv |
10.14393/BJ-v35n3a2019-41956 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/41956/26116 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 35 No. 3 (2019): May/June; 796-805 Bioscience Journal ; v. 35 n. 3 (2019): May/June; 796-805 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069079682482176 |