Organic solutes in coconut palm seedlings under water and salt stresses
ABSTRACT The objective of this study was to investigate the biochemical mechanisms associated with isolated and/or concurrent actions of drought and soil salinity in seedlings of coconut tree, through the accumulation of organic solutes (soluble carbohydrates, soluble amino N and free proline) in le...
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Universidade Federal de Campina Grande
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| author | Alexandre R. A. da Silva Francisco M. L. Bezerra Claudivan F. de Lacerda Rafael de S. Miranda Elton C. Marques Enéas Gomes-Filho |
| author_facet | Alexandre R. A. da Silva Francisco M. L. Bezerra Claudivan F. de Lacerda Rafael de S. Miranda Elton C. Marques Enéas Gomes-Filho |
| author_sort | Alexandre R. A. da Silva |
| collection | DOAJ |
| description | ABSTRACT The objective of this study was to investigate the biochemical mechanisms associated with isolated and/or concurrent actions of drought and soil salinity in seedlings of coconut tree, through the accumulation of organic solutes (soluble carbohydrates, soluble amino N and free proline) in leaves and roots. The experiment, conducted in a protected environment, in Fortaleza, Brazil, in a randomized block design, in a split-plot arrangement, evaluated the effects of different levels of water stress (plots) by imposing distinct percentages of replacement of water losses through crop potential evapotranspiration - ETpc (20, 40, 60, 80 and 100%), associated with subplots consisting of increasing levels of soil salinity in saturation extract (1.72, 6.25, 25.80 and 40.70 dS m-1) provided by the soils collected in the Irrigated Perimeter of Morada Nova. Salinity did not change the concentration of organic solutes; however, there were increases in leaf and root levels of free proline in response to water stress, which contributes to the osmoregulation and/or osmoprotection of the species under adverse conditions of water supply. |
| format | Article |
| id | doaj-art-19a7a18b1d2a46f1af1f2b5a394b7fdb |
| institution | OA Journals |
| issn | 1807-1929 |
| language | English |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-19a7a18b1d2a46f1af1f2b5a394b7fdb2025-08-20T02:25:54ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192920111002100710.1590/1807-1929/agriambi.v20n11p1002-1007S1415-43662016001101002Organic solutes in coconut palm seedlings under water and salt stressesAlexandre R. A. da SilvaFrancisco M. L. BezerraClaudivan F. de LacerdaRafael de S. MirandaElton C. MarquesEnéas Gomes-FilhoABSTRACT The objective of this study was to investigate the biochemical mechanisms associated with isolated and/or concurrent actions of drought and soil salinity in seedlings of coconut tree, through the accumulation of organic solutes (soluble carbohydrates, soluble amino N and free proline) in leaves and roots. The experiment, conducted in a protected environment, in Fortaleza, Brazil, in a randomized block design, in a split-plot arrangement, evaluated the effects of different levels of water stress (plots) by imposing distinct percentages of replacement of water losses through crop potential evapotranspiration - ETpc (20, 40, 60, 80 and 100%), associated with subplots consisting of increasing levels of soil salinity in saturation extract (1.72, 6.25, 25.80 and 40.70 dS m-1) provided by the soils collected in the Irrigated Perimeter of Morada Nova. Salinity did not change the concentration of organic solutes; however, there were increases in leaf and root levels of free proline in response to water stress, which contributes to the osmoregulation and/or osmoprotection of the species under adverse conditions of water supply.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001101002&lng=en&tlng=enCocos nucifera L.multiple stressesbiochemical mechanisms |
| spellingShingle | Alexandre R. A. da Silva Francisco M. L. Bezerra Claudivan F. de Lacerda Rafael de S. Miranda Elton C. Marques Enéas Gomes-Filho Organic solutes in coconut palm seedlings under water and salt stresses Revista Brasileira de Engenharia Agrícola e Ambiental Cocos nucifera L. multiple stresses biochemical mechanisms |
| title | Organic solutes in coconut palm seedlings under water and salt stresses |
| title_full | Organic solutes in coconut palm seedlings under water and salt stresses |
| title_fullStr | Organic solutes in coconut palm seedlings under water and salt stresses |
| title_full_unstemmed | Organic solutes in coconut palm seedlings under water and salt stresses |
| title_short | Organic solutes in coconut palm seedlings under water and salt stresses |
| title_sort | organic solutes in coconut palm seedlings under water and salt stresses |
| topic | Cocos nucifera L. multiple stresses biochemical mechanisms |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001101002&lng=en&tlng=en |
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