Rizobacterias en la producción orgánica de lechuga (Lactuca sativa L.) cv. Rincon’ en condiciones de La Molina
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Authors
Watanabe Torres, Akemi Nicole
Abstract
El presente estudio tuvo el objetivo de determinar el efecto de las rizobacterias promotoras del crecimiento vegetal (PGRP) en la calidad y rendimiento del cultivo orgánico de lechuga (Lactuca sativa L.) cv. ‘Rincon’. El experimento fue establecido en un suelo de textura franco arenosa cuya fertilidad es alta. Los tratamientos constaron del control sin aplicación y la aplicación en drench de tres dosis de un bioestimulante a base de rizobacterias de las siguientes especies de Bacillus sp.: B. licheniformis, B. pumilus, B. safensis y B. velezensis. Las dosis aplicadas fueron T1 (20L/Ha/Campaña), T2 (30 L/Ha/Campaña), T3 (40 L/Ha/ Campaña). El T1 constó de dos aplicaciones de 10 L/Ha, mientras que el T2 y T3 constó de tres aplicaciones de 10 y 13.3 L/Ha, respectivamente. Las dosis y número de aplicaciones fueron establecidas por el fabricante del producto. Se utilizó un diseño de bloques completamente al azar (DBCA) con cinco repeticiones. Se evaluaron las variables de altura de planta, diámetro de canopy, número de hojas, longitud y peso de raíces, materia seca foliar y radicular, peso promedio de la lechuga, contenido de clorofila foliar, así como el rendimiento total. El análisis estadístico se realizó mediante ANOVA y la prueba de Tukey con un nivel de significancia del 5%. Los tratamientos con aplicación de rizobacterias no presentaron diferencias estadísticamente significativas respecto al control en ninguna de las variables evaluadas.
The present study was carried out with the aim to determine the effect of plant growth promoting rhizobacteria (PGRP) on the quality and yield in an organic lettuce (Lactuca sativa L.) cv. ‘Rincon’. The experiment was conducted in a sandy loam soil with high fertility. Treatments included a control without application and the application of three doses of a biostimulant base on rhizobacteria species: Bacillus licheniformis, B. pumilus, B. safensis, and B. velezensis, applied via drench. The applied doses were T1 (20 L/Ha/Campaign), T2 (30 L/Ha/Campaign), and T3 (40 L/Ha/Campaign). T1 involved two applications of 10 L/Ha, while T2 and T3 involved three applications of 10 L/Ha and 13.3 L/Ha, respectively. The doses and applications frequencies were set according to the manufacturer’s recommendations. A completely randomized block design with five replications was used. The variables assessed included plant height, canopy diameter, leaf number, root length and weight, leaf and root dry matter, average head weight, yield as well as leaf chlorophyll content. Statistical analisis was performed using ANOVA and Tukey’s test at significance level of 5%. Treatments with rhizobacteria application showed no statistically significant differences compared to the control for any of the evaluated variables.
The present study was carried out with the aim to determine the effect of plant growth promoting rhizobacteria (PGRP) on the quality and yield in an organic lettuce (Lactuca sativa L.) cv. ‘Rincon’. The experiment was conducted in a sandy loam soil with high fertility. Treatments included a control without application and the application of three doses of a biostimulant base on rhizobacteria species: Bacillus licheniformis, B. pumilus, B. safensis, and B. velezensis, applied via drench. The applied doses were T1 (20 L/Ha/Campaign), T2 (30 L/Ha/Campaign), and T3 (40 L/Ha/Campaign). T1 involved two applications of 10 L/Ha, while T2 and T3 involved three applications of 10 L/Ha and 13.3 L/Ha, respectively. The doses and applications frequencies were set according to the manufacturer’s recommendations. A completely randomized block design with five replications was used. The variables assessed included plant height, canopy diameter, leaf number, root length and weight, leaf and root dry matter, average head weight, yield as well as leaf chlorophyll content. Statistical analisis was performed using ANOVA and Tukey’s test at significance level of 5%. Treatments with rhizobacteria application showed no statistically significant differences compared to the control for any of the evaluated variables.
Description
Universidad Nacional Agraria La Molina. Facultad de Agronomía. Departamento
Académico de Horticultura
Keywords
Rizobacterias
Citation
Date
2024
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