Chlorophyll contents in tomato cultivars under magnesium foliar applications
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/20592 |
Resumo: | Although the foliar nutrients application is well disseminated in horticulture, the technology is still controversial, since the products efficiency is related to the characteristics of the formulations, especially the sources of nutrients used. Thus, this study aimed at identifying changes in chlorophyll contents, by using the colorimetric method and a chlorophyll meter, as well as in the Mg content in tomato plant leaves, as related to foliar applications of solutions containing Mg (OH)2 or MgCl2. Two tomato cultivars were subjected to fertigation with low Mg addition. The data from the chlorophyll meter were corroborated by the colorimetric method, indicating that the solutions containing 1.0 mL L-1 and 2.0 mL L-1 of a suspension concentrate (300 g L-1 of Mg, as Mg(OH)2) and the solution containing 3.75 mL L-1 of MgCl2 were effective in increasing the chlorophyll contents, resulting in the Mg absorption and metabolization. The solution containing 7.5 mL L-1 of MgCl2 caused fitotoxicity and reduced the chlorophyll contents, although promoting a higher Mg content in leaves. |
id |
UFG-6_f2f1b84bae684c3f3ab0d2813d4c8a72 |
---|---|
oai_identifier_str |
oai:ojs.revistas.ufg.br:article/20592 |
network_acronym_str |
UFG-6 |
network_name_str |
Pesquisa Agropecuária Tropical (Online) |
repository_id_str |
|
spelling |
Chlorophyll contents in tomato cultivars under magnesium foliar applicationsTeores de clorofila em cultivares de tomateiro submetidas a aplicações foliares de magnésioSolanum lycopersicum L.magnesium hydroxidemagnesium chlorideportable chlorophyll-meter.Solanum lycopersicum L.hidróxido de magnésiocloreto de magnésioclorofilômetro portátil.Although the foliar nutrients application is well disseminated in horticulture, the technology is still controversial, since the products efficiency is related to the characteristics of the formulations, especially the sources of nutrients used. Thus, this study aimed at identifying changes in chlorophyll contents, by using the colorimetric method and a chlorophyll meter, as well as in the Mg content in tomato plant leaves, as related to foliar applications of solutions containing Mg (OH)2 or MgCl2. Two tomato cultivars were subjected to fertigation with low Mg addition. The data from the chlorophyll meter were corroborated by the colorimetric method, indicating that the solutions containing 1.0 mL L-1 and 2.0 mL L-1 of a suspension concentrate (300 g L-1 of Mg, as Mg(OH)2) and the solution containing 3.75 mL L-1 of MgCl2 were effective in increasing the chlorophyll contents, resulting in the Mg absorption and metabolization. The solution containing 7.5 mL L-1 of MgCl2 caused fitotoxicity and reduced the chlorophyll contents, although promoting a higher Mg content in leaves.Apesar de a aplicação de nutrientes via foliar ser bem disseminada na horticultura, a tecnologia ainda é controversa, pois a eficiência dos produtos está relacionada às características das formulações, especialmente quanto às fontes de nutrientes utilizadas. Assim, buscou-se, neste trabalho, identificar alterações nos teores de clorofila, utilizando o método colorimétrico e o método indireto por clorofilômetro, bem como alterações no teor de Mg nas folhas de tomateiro, em função de aplicações foliares de soluções contendo Mg(OH)2 ou MgCl2. Foram utilizadas duas cultivares, submetidas a fertirrigações com baixa adição de Mg. Os valores das leituras com clorofilômetro foram corroborados pelo método colorimétrico, indicando que as soluções contendo 1,0 mL L-1 e 2,0 mL L-1 de uma suspensão concentrada (300 g L-1 de Mg, na forma de Mg(OH)2) e a solução contendo 3,75 mL L-1 de MgCl2 foram eficientes em promover aumentos nos teores de clorofila, indicando a absorção e metabolização do Mg. Já a solução contendo 7,5 mL L-1 de MgCl2 causou fitotoxidez, reduzindo os teores de clorofila, mas promovendo maior teor de Mg nas folhas.Escola de Agronomia - Universidade Federal de Goiás2013-11-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpesquisa experimentalapplication/pdfhttps://revistas.ufg.br/pat/article/view/20592Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 43, n. 4, Oct./Dec. 2013; 363-369Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 43, n. 4, out./dez. 2013; 363-369Pesquisa Agropecuária Tropical; v. 43, n. 4, out./dez. 2013; 363-3691983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/20592/15462Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessMógor, Átila FranciscoBarbizan, ThamirisPauletti, VolneiOliveira, Juliana deBettoni, Marcelle Michelotti2020-07-10T12:50:50Zoai:ojs.revistas.ufg.br:article/20592Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:58.262398Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Chlorophyll contents in tomato cultivars under magnesium foliar applications Teores de clorofila em cultivares de tomateiro submetidas a aplicações foliares de magnésio |
title |
Chlorophyll contents in tomato cultivars under magnesium foliar applications |
spellingShingle |
Chlorophyll contents in tomato cultivars under magnesium foliar applications Mógor, Átila Francisco Solanum lycopersicum L. magnesium hydroxide magnesium chloride portable chlorophyll-meter. Solanum lycopersicum L. hidróxido de magnésio cloreto de magnésio clorofilômetro portátil. |
title_short |
Chlorophyll contents in tomato cultivars under magnesium foliar applications |
title_full |
Chlorophyll contents in tomato cultivars under magnesium foliar applications |
title_fullStr |
Chlorophyll contents in tomato cultivars under magnesium foliar applications |
title_full_unstemmed |
Chlorophyll contents in tomato cultivars under magnesium foliar applications |
title_sort |
Chlorophyll contents in tomato cultivars under magnesium foliar applications |
author |
Mógor, Átila Francisco |
author_facet |
Mógor, Átila Francisco Barbizan, Thamiris Pauletti, Volnei Oliveira, Juliana de Bettoni, Marcelle Michelotti |
author_role |
author |
author2 |
Barbizan, Thamiris Pauletti, Volnei Oliveira, Juliana de Bettoni, Marcelle Michelotti |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Mógor, Átila Francisco Barbizan, Thamiris Pauletti, Volnei Oliveira, Juliana de Bettoni, Marcelle Michelotti |
dc.subject.por.fl_str_mv |
Solanum lycopersicum L. magnesium hydroxide magnesium chloride portable chlorophyll-meter. Solanum lycopersicum L. hidróxido de magnésio cloreto de magnésio clorofilômetro portátil. |
topic |
Solanum lycopersicum L. magnesium hydroxide magnesium chloride portable chlorophyll-meter. Solanum lycopersicum L. hidróxido de magnésio cloreto de magnésio clorofilômetro portátil. |
description |
Although the foliar nutrients application is well disseminated in horticulture, the technology is still controversial, since the products efficiency is related to the characteristics of the formulations, especially the sources of nutrients used. Thus, this study aimed at identifying changes in chlorophyll contents, by using the colorimetric method and a chlorophyll meter, as well as in the Mg content in tomato plant leaves, as related to foliar applications of solutions containing Mg (OH)2 or MgCl2. Two tomato cultivars were subjected to fertigation with low Mg addition. The data from the chlorophyll meter were corroborated by the colorimetric method, indicating that the solutions containing 1.0 mL L-1 and 2.0 mL L-1 of a suspension concentrate (300 g L-1 of Mg, as Mg(OH)2) and the solution containing 3.75 mL L-1 of MgCl2 were effective in increasing the chlorophyll contents, resulting in the Mg absorption and metabolization. The solution containing 7.5 mL L-1 of MgCl2 caused fitotoxicity and reduced the chlorophyll contents, although promoting a higher Mg content in leaves. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-11-11 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion pesquisa experimental |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/20592 |
url |
https://revistas.ufg.br/pat/article/view/20592 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/20592/15462 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics) info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics) |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 43, n. 4, Oct./Dec. 2013; 363-369 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 43, n. 4, out./dez. 2013; 363-369 Pesquisa Agropecuária Tropical; v. 43, n. 4, out./dez. 2013; 363-369 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
_version_ |
1799874818279997440 |