Chlorophyll contents in tomato cultivars under magnesium foliar applications
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 chlor...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Goiás
2013-12-01
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| Series: | Pesquisa Agropecuária Tropical |
| Subjects: | |
| Online Access: | https://www.revistas.ufg.br/pat/article/view/20592 |
| _version_ | 1818516475460190208 |
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| author | Átila Francisco Mógor Thamiris Barbizan Volnei Pauletti Juliana de Oliveira Marcelle Michelotti Bettoni |
| author_facet | Átila Francisco Mógor Thamiris Barbizan Volnei Pauletti Juliana de Oliveira Marcelle Michelotti Bettoni |
| author_sort | Átila Francisco Mógor |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-11T00:42:46Z |
| format | Article |
| id | doaj.art-167e7406d3a04b44b904fead8cb77d50 |
| institution | Directory Open Access Journal |
| issn | 1983-4063 |
| language | English |
| last_indexed | 2024-12-11T00:42:46Z |
| publishDate | 2013-12-01 |
| publisher | Universidade Federal de Goiás |
| record_format | Article |
| series | Pesquisa Agropecuária Tropical |
| spelling | doaj.art-167e7406d3a04b44b904fead8cb77d502022-12-22T01:26:52ZengUniversidade Federal de GoiásPesquisa Agropecuária Tropical1983-40632013-12-0143436336910.1590/S1983-40632013000400008Chlorophyll contents in tomato cultivars under magnesium foliar applicationsÁtila Francisco Mógor0Thamiris Barbizan1Volnei Pauletti2Juliana de Oliveira3Marcelle Michelotti Bettoni4Universidade Federal do Paraná (UFPR), Departamento de Fitotecnia e Fitossanitarismo, Curitiba, PR, Brasil.Universidade Federal do Paraná (UFPR), Departamento de Fitotecnia e Fitossanitarismo, Curitiba, PR, Brasil.Universidade Federal do Paraná (UFPR), Departamento de Solos e Engenharia Agrícola, Curitiba, PR, Brasil.Universidade Federal do Paraná (UFPR), Departamento de Fitotecnia e Fitossanitarismo, Curitiba, PR, Brasil.Universidade Federal do Paraná (UFPR), Departamento de Fitotecnia e Fitossanitarismo, Curitiba, PR, Brasil.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.https://www.revistas.ufg.br/pat/article/view/20592Solanum lycopersicum L.magnesium hydroxidemagnesium chlorideportable chlorophyll-meter |
| spellingShingle | Átila Francisco Mógor Thamiris Barbizan Volnei Pauletti Juliana de Oliveira Marcelle Michelotti Bettoni Chlorophyll contents in tomato cultivars under magnesium foliar applications Pesquisa Agropecuária Tropical Solanum lycopersicum L. magnesium hydroxide magnesium chloride portable chlorophyll-meter |
| title | 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_short | Chlorophyll contents in tomato cultivars under magnesium foliar applications |
| title_sort | chlorophyll contents in tomato cultivars under magnesium foliar applications |
| topic | Solanum lycopersicum L. magnesium hydroxide magnesium chloride portable chlorophyll-meter |
| url | https://www.revistas.ufg.br/pat/article/view/20592 |
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