Inoculación de bacterias endófitas promotoras del crecimiento en el rendimiento y calidad de Cucumis sativus L. var. Carmen F1 en Virú, La Libertad
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Date
2024
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Universidad Nacional de Trujillo
Abstract
La investigación tuvo con objetivo evaluar el efecto de la inoculación de ocho cepas de bacterias promotoras del crecimiento en el rendimiento y la calidad de Cucumis sativus L var. Carmen F1 en la provincia de Virú, Región de La Libertad, bajo condiciones de campo, en un diseño de bloques completos al azar con cuatro repeticiones. Se evaluaron tres cepas de Gluconacetobacter diazotrophicus, una cepa de Bacillus sp, una cepa de Bacillus safensis y tres cepas de B. subtilis, pertenecientes a la colección de cepas del Laboratorio de Análisis de Suelos y Foliares de la Escuela de Ingeniería Agronómica de la Universidad Nacional de Trujillo. Las semillas fueron inoculadas por inmersión durante 12 horas en una suspensión bacteriana de 8x107 UFC /ml antes de la siembra. Todos los tratamientos recibieron media dosis de NPK, incluyendo el testigo no inoculado, equivalente a 140 kg del fertilizante 20-20-20 por hectárea. No se encontraron diferencias estadísticas entre tratamientos para ninguna de las variables evaluadas; sin embargo, la cepa LASFB C1911 de Gluconacetobacter diazotrophicus y la cepa LASFB 095 de Bacillus sp mostraron una tendencia a incrementar el rendimiento y la calidad del fruto, así como a reducir el fruto de descarte en relación con el testigo.
ABSTRACT The objective of the research was to evaluate the effect of the inoculation of eight strains of growth-promoting bacteria on the yield and quality of Cucumis sativus L var. Carmen F1 in the province of Viru, La Libertad Region, under field conditions, in a randomized complete block design with four replications. Three strains of Gluconacetobacter diazotrophicus, one strain of Bacillus sp, one strain of Bacillus safensis and three strains of B. subtilis, belonging to the strain collection of the Soil and Foliar Analysis Laboratory of the School of Agronomic Engineering of the National University of Trujillo, were evaluated. Seeds were inoculated by immersion for 12 hours in a bacterial suspension of 8x107 CFU/ml before sowing. All treatments received a half dose of NPK, including the non-inoculated control, equivalent to 140 kg of 20-20-20 fertilizer per hectare. No statistical differences were found between treatments for any of the variables evaluated; however, the LASFB C1911 strain of Gluconacetobacter diazotrophicus and the LASFB 095 strain of Bacillus sp showed a tendency to increase yield and fruit quality, as well as to reduce discarded fruit in relation to the control.
ABSTRACT The objective of the research was to evaluate the effect of the inoculation of eight strains of growth-promoting bacteria on the yield and quality of Cucumis sativus L var. Carmen F1 in the province of Viru, La Libertad Region, under field conditions, in a randomized complete block design with four replications. Three strains of Gluconacetobacter diazotrophicus, one strain of Bacillus sp, one strain of Bacillus safensis and three strains of B. subtilis, belonging to the strain collection of the Soil and Foliar Analysis Laboratory of the School of Agronomic Engineering of the National University of Trujillo, were evaluated. Seeds were inoculated by immersion for 12 hours in a bacterial suspension of 8x107 CFU/ml before sowing. All treatments received a half dose of NPK, including the non-inoculated control, equivalent to 140 kg of 20-20-20 fertilizer per hectare. No statistical differences were found between treatments for any of the variables evaluated; however, the LASFB C1911 strain of Gluconacetobacter diazotrophicus and the LASFB 095 strain of Bacillus sp showed a tendency to increase yield and fruit quality, as well as to reduce discarded fruit in relation to the control.
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Keywords
Pepinillo, Gluconacetobacter, Bacillus sp, BPCV, FBN