Stress index, water potentials and leaf succulence in cauliflower cultivated hydroponically with brackish water
ABSTRACT The tolerance of crops to salinity is greater in hydroponic systems due to the low contribution of the matric potential to the total potential of the water. The objective of this study was to evaluate the use of brackish water, to prepare the nutrient solution and replace the evapotranspire...
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Universidade Federal de Campina Grande
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| author | Adiel F. da S. Cruz Gerônimo F. da Silva Ênio F. de F. e Silva Hammady R. e Soares Jenyffer da S. G. Santos Raquele M. de Lira |
| author_facet | Adiel F. da S. Cruz Gerônimo F. da Silva Ênio F. de F. e Silva Hammady R. e Soares Jenyffer da S. G. Santos Raquele M. de Lira |
| author_sort | Adiel F. da S. Cruz |
| collection | DOAJ |
| description | ABSTRACT The tolerance of crops to salinity is greater in hydroponic systems due to the low contribution of the matric potential to the total potential of the water. The objective of this study was to evaluate the use of brackish water, to prepare the nutrient solution and replace the evapotranspired volume, and rates of application of this solution on the water stress index, water potential, leaf succulence and water consumption of cauliflower cv. ‘Piracicaba Precoce’. The experimental design was completely randomized in a 6 x 2 factorial scheme, with six salinity levels used to prepare the nutrient solutions (0.2, 1.5, 2.5, 3.5, 4.5 and 5.5 dS m-1) and two application rates of these solutions (1.5 and 2.5 L min-1), with four replicates. Water stress index (WSI), water and osmotic leaf potentials, leaf succulence (LS) and water consumption were analyzed. The increase in water salinity reduced LS and increased WSI. Water salinity reduced the water and osmotic leaf potentials and water consumption of the crop; however, the effects were more pronounced at the rate of 2.5 L min-1. Application rate of 2.5 L min-1 led to the highest WSI and lowest LS. |
| format | Article |
| id | doaj-art-e6ce6c41632e4cf6a38d0bc873291bea |
| 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-e6ce6c41632e4cf6a38d0bc873291bea2025-08-20T02:04:11ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192922962262710.1590/1807-1929/agriambi.v22n9p622-627S1415-43662018000900622Stress index, water potentials and leaf succulence in cauliflower cultivated hydroponically with brackish waterAdiel F. da S. CruzGerônimo F. da SilvaÊnio F. de F. e SilvaHammady R. e SoaresJenyffer da S. G. SantosRaquele M. de LiraABSTRACT The tolerance of crops to salinity is greater in hydroponic systems due to the low contribution of the matric potential to the total potential of the water. The objective of this study was to evaluate the use of brackish water, to prepare the nutrient solution and replace the evapotranspired volume, and rates of application of this solution on the water stress index, water potential, leaf succulence and water consumption of cauliflower cv. ‘Piracicaba Precoce’. The experimental design was completely randomized in a 6 x 2 factorial scheme, with six salinity levels used to prepare the nutrient solutions (0.2, 1.5, 2.5, 3.5, 4.5 and 5.5 dS m-1) and two application rates of these solutions (1.5 and 2.5 L min-1), with four replicates. Water stress index (WSI), water and osmotic leaf potentials, leaf succulence (LS) and water consumption were analyzed. The increase in water salinity reduced LS and increased WSI. Water salinity reduced the water and osmotic leaf potentials and water consumption of the crop; however, the effects were more pronounced at the rate of 2.5 L min-1. Application rate of 2.5 L min-1 led to the highest WSI and lowest LS.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000900622&lng=en&tlng=enrelações hídricashidroponiasalinidade |
| spellingShingle | Adiel F. da S. Cruz Gerônimo F. da Silva Ênio F. de F. e Silva Hammady R. e Soares Jenyffer da S. G. Santos Raquele M. de Lira Stress index, water potentials and leaf succulence in cauliflower cultivated hydroponically with brackish water Revista Brasileira de Engenharia Agrícola e Ambiental relações hídricas hidroponia salinidade |
| title | Stress index, water potentials and leaf succulence in cauliflower cultivated hydroponically with brackish water |
| title_full | Stress index, water potentials and leaf succulence in cauliflower cultivated hydroponically with brackish water |
| title_fullStr | Stress index, water potentials and leaf succulence in cauliflower cultivated hydroponically with brackish water |
| title_full_unstemmed | Stress index, water potentials and leaf succulence in cauliflower cultivated hydroponically with brackish water |
| title_short | Stress index, water potentials and leaf succulence in cauliflower cultivated hydroponically with brackish water |
| title_sort | stress index water potentials and leaf succulence in cauliflower cultivated hydroponically with brackish water |
| topic | relações hídricas hidroponia salinidade |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000900622&lng=en&tlng=en |
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