Productive and physiological performance of lettuce cultivars under hydroponic cultivation in the semi-arid region of the Northeast
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Agro@mbiente on-line |
Texto Completo: | https://revista.ufrr.br/agroambiente/article/view/5901 |
Resumo: | Lettuce is the most-produced leafy vegetable in Brazil; however, to achieve satisfactory production in the different regions, it is necessary to choose the correct cultivar. The aim of this work was to evaluate the productive and physiological performance of lettuce cultivars in a hydroponic system located in Caucaia, in the state of Ceará. A completely randomised design was used, with four cultivars (Isabela, Vanda, Elba and Summer Crisp) and four replications. The following were evaluated: plant height and diameter (PH and PD), total fresh and dry weight (TFW and TDW), commercial fresh weight (CFW), internal CO2 concentration (Ci), stomatal conductance (gs), photosynthesis (A), ratio between internal and external CO2 concentration (Ci/Ca), and transpiration (E). Differences were seen between cultivars in the production and physiological characteristics, except for Ci and Ci/Ca. The ‘Elba’ and ‘Summer Crisp’ cultivars were the first to show signs of bolting (32 and 36 days) and greater height, 38.7 and 31.8 cm respectively. The ‘Isabela’ and ‘Vanda’ cultivars obtained the greatest values for CFW (43.5 and 41.13 g) and TFW (49.38 and 46.46 g). In relation to physiological performance, the ‘Isabela’ and ‘Summer Crisp’ cultivars presented the most photosynthesis. The ‘Isabela’ cultivar had the best productive and physiological performance, in addition to being the only cultivar that presented no signs of bolting, and is therefore strongly suggested for hydroponic production under the conditions of this study. |
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Productive and physiological performance of lettuce cultivars under hydroponic cultivation in the semi-arid region of the NortheastLactuca sativa L. Hydroponics. Bolting. Photosynthesis.Lettuce is the most-produced leafy vegetable in Brazil; however, to achieve satisfactory production in the different regions, it is necessary to choose the correct cultivar. The aim of this work was to evaluate the productive and physiological performance of lettuce cultivars in a hydroponic system located in Caucaia, in the state of Ceará. A completely randomised design was used, with four cultivars (Isabela, Vanda, Elba and Summer Crisp) and four replications. The following were evaluated: plant height and diameter (PH and PD), total fresh and dry weight (TFW and TDW), commercial fresh weight (CFW), internal CO2 concentration (Ci), stomatal conductance (gs), photosynthesis (A), ratio between internal and external CO2 concentration (Ci/Ca), and transpiration (E). Differences were seen between cultivars in the production and physiological characteristics, except for Ci and Ci/Ca. The ‘Elba’ and ‘Summer Crisp’ cultivars were the first to show signs of bolting (32 and 36 days) and greater height, 38.7 and 31.8 cm respectively. The ‘Isabela’ and ‘Vanda’ cultivars obtained the greatest values for CFW (43.5 and 41.13 g) and TFW (49.38 and 46.46 g). In relation to physiological performance, the ‘Isabela’ and ‘Summer Crisp’ cultivars presented the most photosynthesis. The ‘Isabela’ cultivar had the best productive and physiological performance, in addition to being the only cultivar that presented no signs of bolting, and is therefore strongly suggested for hydroponic production under the conditions of this study.UFRR2020-01-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revista.ufrr.br/agroambiente/article/view/590110.18227/1982-8470ragro.v14i0.5901AGRO@MBIENTE ON-LINE JOURNALRAGR; Vol. 14 (2020)REVISTA AGRO@MBIENTE ON-LINE; Vol. 14 (2020)REVISTA AGRO@MBIENTE ON-LINE; v. 14 (2020)1982-8470reponame:Agro@mbiente on-lineinstname:Universidade Federal de Roraima (UFRR)instacron:UFRRporhttps://revista.ufrr.br/agroambiente/article/view/5901/2792Copyright (c) 2020 REVISTA AGRO@MBIENTE ON-LINEinfo:eu-repo/semantics/openAccessde Menezes Fortes, Jefferson FreitasAlmeida Guimarães, Marcelo deSouza Lemos Neto, Hozano deGomes Sampaio, Italo MarloneMoreira Silva, Francisco Gilcivan2020-12-16T13:47:07Zoai:oai.revista.ufrr.br:article/5901Revistahttps://revista.ufrr.br/index.php/agroambientePUBhttps://revista.ufrr.br/index.php/agroambiente/oai||scpuchoa@dsi.ufrr.br|| arcanjoalves@oi.com.br1982-84701982-8470opendoar:2020-12-16T13:47:07Agro@mbiente on-line - Universidade Federal de Roraima (UFRR)false |
dc.title.none.fl_str_mv |
Productive and physiological performance of lettuce cultivars under hydroponic cultivation in the semi-arid region of the Northeast |
title |
Productive and physiological performance of lettuce cultivars under hydroponic cultivation in the semi-arid region of the Northeast |
spellingShingle |
Productive and physiological performance of lettuce cultivars under hydroponic cultivation in the semi-arid region of the Northeast de Menezes Fortes, Jefferson Freitas Lactuca sativa L. Hydroponics. Bolting. Photosynthesis. |
title_short |
Productive and physiological performance of lettuce cultivars under hydroponic cultivation in the semi-arid region of the Northeast |
title_full |
Productive and physiological performance of lettuce cultivars under hydroponic cultivation in the semi-arid region of the Northeast |
title_fullStr |
Productive and physiological performance of lettuce cultivars under hydroponic cultivation in the semi-arid region of the Northeast |
title_full_unstemmed |
Productive and physiological performance of lettuce cultivars under hydroponic cultivation in the semi-arid region of the Northeast |
title_sort |
Productive and physiological performance of lettuce cultivars under hydroponic cultivation in the semi-arid region of the Northeast |
author |
de Menezes Fortes, Jefferson Freitas |
author_facet |
de Menezes Fortes, Jefferson Freitas Almeida Guimarães, Marcelo de Souza Lemos Neto, Hozano de Gomes Sampaio, Italo Marlone Moreira Silva, Francisco Gilcivan |
author_role |
author |
author2 |
Almeida Guimarães, Marcelo de Souza Lemos Neto, Hozano de Gomes Sampaio, Italo Marlone Moreira Silva, Francisco Gilcivan |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
de Menezes Fortes, Jefferson Freitas Almeida Guimarães, Marcelo de Souza Lemos Neto, Hozano de Gomes Sampaio, Italo Marlone Moreira Silva, Francisco Gilcivan |
dc.subject.por.fl_str_mv |
Lactuca sativa L. Hydroponics. Bolting. Photosynthesis. |
topic |
Lactuca sativa L. Hydroponics. Bolting. Photosynthesis. |
description |
Lettuce is the most-produced leafy vegetable in Brazil; however, to achieve satisfactory production in the different regions, it is necessary to choose the correct cultivar. The aim of this work was to evaluate the productive and physiological performance of lettuce cultivars in a hydroponic system located in Caucaia, in the state of Ceará. A completely randomised design was used, with four cultivars (Isabela, Vanda, Elba and Summer Crisp) and four replications. The following were evaluated: plant height and diameter (PH and PD), total fresh and dry weight (TFW and TDW), commercial fresh weight (CFW), internal CO2 concentration (Ci), stomatal conductance (gs), photosynthesis (A), ratio between internal and external CO2 concentration (Ci/Ca), and transpiration (E). Differences were seen between cultivars in the production and physiological characteristics, except for Ci and Ci/Ca. The ‘Elba’ and ‘Summer Crisp’ cultivars were the first to show signs of bolting (32 and 36 days) and greater height, 38.7 and 31.8 cm respectively. The ‘Isabela’ and ‘Vanda’ cultivars obtained the greatest values for CFW (43.5 and 41.13 g) and TFW (49.38 and 46.46 g). In relation to physiological performance, the ‘Isabela’ and ‘Summer Crisp’ cultivars presented the most photosynthesis. The ‘Isabela’ cultivar had the best productive and physiological performance, in addition to being the only cultivar that presented no signs of bolting, and is therefore strongly suggested for hydroponic production under the conditions of this study. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-23 |
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://revista.ufrr.br/agroambiente/article/view/5901 10.18227/1982-8470ragro.v14i0.5901 |
url |
https://revista.ufrr.br/agroambiente/article/view/5901 |
identifier_str_mv |
10.18227/1982-8470ragro.v14i0.5901 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revista.ufrr.br/agroambiente/article/view/5901/2792 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 REVISTA AGRO@MBIENTE ON-LINE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 REVISTA AGRO@MBIENTE ON-LINE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UFRR |
publisher.none.fl_str_mv |
UFRR |
dc.source.none.fl_str_mv |
AGRO@MBIENTE ON-LINE JOURNALRAGR; Vol. 14 (2020) REVISTA AGRO@MBIENTE ON-LINE; Vol. 14 (2020) REVISTA AGRO@MBIENTE ON-LINE; v. 14 (2020) 1982-8470 reponame:Agro@mbiente on-line instname:Universidade Federal de Roraima (UFRR) instacron:UFRR |
instname_str |
Universidade Federal de Roraima (UFRR) |
instacron_str |
UFRR |
institution |
UFRR |
reponame_str |
Agro@mbiente on-line |
collection |
Agro@mbiente on-line |
repository.name.fl_str_mv |
Agro@mbiente on-line - Universidade Federal de Roraima (UFRR) |
repository.mail.fl_str_mv |
||scpuchoa@dsi.ufrr.br|| arcanjoalves@oi.com.br |
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1799770041531498496 |