Evaluación del efecto del sistema acuapónico en dos variedades de lechuga, francesa (Lactuca sativa) y criolla (Lactuca sativa L.) asociada al cultivo de tilapia roja (Oreochromis sp.)

This study investigated the evaluation of the effects of an aquaponic system on two lettuce varieties, French (Lactuca sativa) and Criolla (Lactuca sativa L.), associated with the cultivation of red tilapia (Oreochromis sp.). The objectives included evaluating agronomic parameters and determining nutrient absorption during the phenological stages of both lettuce varieties under the aquaponic system, in response to the need for efficient water management in agricultural areas. A Completely Randomized Design (CRD) with a 2x2 factorial arrangement was used to compare both cultivation systems and varieties. Variables measured included root and shoot mass, root length, leaf number and length, chlorophyll levels, and NPK (Nitrogen, Phosphorus, and Potassium) absorption. Data were analyzed using ANOVA and Tukey's test. The results revealed that in the aquaponic system, French lettuce exhibited superior performance compared to Criolla lettuce. French lettuce had a root mass of 43.99 g and a root length of 56.11 cm, which were higher than the 25.15 g and 52.82 cm observed for Criolla. French lettuce also outperformed Criolla in shoot mass (148.58 g vs. 105.15 g), leaf length (24.04 cm vs. 20.12 cm), and leaf number (30.18 vs. 22.30). In terms of nutrient absorption, French lettuce absorbed higher amounts of NPK under the aquaponic system. In the hydroponic system, French lettuce also showed better results in shoot mass (18.55 g vs. 15.28 g) and leaf length (18.75 cm vs. 16.32 cm). However, Criolla lettuce demonstrated better root development in the hydroponic system, with a root mass of 5.30 g compared to 4.00 g and a root length of 9.81 cm compared to 8.50 cm. Regarding NPK concentration, Criolla lettuce absorbed more nutrients in the hydroponic system. Thus, it is concluded that French lettuce achieved better overall performance in both systems, but Criolla lettuce exhibited specific advantages in root development within the hydroponic system.

• Autor Principal: Males Jativa, Carla Dayana (author)
• Formato: bachelorThesis
• Publicado: 2024
• Subjects: rendimiento agronómico, sistemas acuapónico e hidropónico, gestión del agua, variedades de lechuga, absorción de nutrientes
• Acceso en liña: https://repositorio.puce.edu.ec/handle/123456789/44600