Effect of Electric Field on the Kinetics of Growth of Lettuce (Lactuca sativa) in a Hydroponic System
| Autor: | M. Dominguez-Patiño, Oscar Gabriel Villegas-Torres, Orlando Fuentes-Castañeda, Jorge Domínguez-Patiño, Rosa María Melgoza-Alemán |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Nutrient solution Hydroponic culture biology Kinetics Lactuca 010501 environmental sciences biology.organism_classification 01 natural sciences Crop Reference test Agronomy Electric field 010606 plant biology & botany 0105 earth and related environmental sciences Mathematics |
| Zdroj: | Journal of Agricultural Chemistry and Environment. :113-120 |
| ISSN: | 2325-744X 2325-7458 |
| Popis: | The implementation of alternative harvest systems which are able to accelerate the kinetics of growth of plants, is extremely important to decrease the time of crop. In this sense, Electro-Hydroponic culture, i.e., the application of an electric field in the nutrient solution of the hydroponic culture emerges as an alternative and interesting harvest system. The objective of the present study was to investigate the effect of the electric field applying different intensities of direct current (DC) at the galvanostatic regime (50, 37.5, 25 and 12.5 mA) on the growth of lettuce (Lactuca sativa) plants in hydroponic culture. Fifty lettuce plants were used in a nutrient solution, from which 4 groups composed of ten lettuces each one, were subjected at 12.5, 25, 37.5 and 50 mA, respectively. A fifth group of ten lettuces was used as a reference test, i.e., without application of DC. The experiments were carried out during 16 days. The results reveal that the kinetics of growth of the lettuce is dependent on the applied current; actually it is observed an increase in the foliate area of the plants cultivated in the presence of DC than that obtained in the reference test. Furthermore, the plants subjected at 12.5 mA, revealed an increase in the foliate area of 65.3% and 73.2% in comparison with the reference test. |
| Databáze: | OpenAIRE |
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