Efecto de los inoculantes microbianos sobre la promoción de crecimiento de plantulas de mangle y plantas de citrullus vulgaris san andrés isla, colombia
Authors
Galindo, Tania
Polanía, Jaime
Sánchez, Jimena
Moreno, Nubia
Vanegas, Javier
Holguín, Gina
Director
Content type
Artículo de revista
Document language
EspañolPublication date
2006
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Abstract
Con el fin de probar la efectividad de dos inoculantes microbianos (aislados a partir de raicillas de mangle rojo y negro) en el crecimiento y establecimiento de plántulas de mangle y de patilla, se realizaron cuatro pruebas en campo en San Andrés Isla, Colombia. Se aplicaron dichos inoculantes en: propágulos de Avicennia germinans colectados en un área de manglar y sembrados en macetas sobre sustrato solarizado (con el fin de disminuir la carga microbiana), plántulas de A. germinans y Rhizophora mangle colectadas en cercanía de árboles semilleros, plántulas de A. germinans y R. mangle sembradas y mantenidas en vivero y en semillas de patilla (Citrullus vulgaris) sembradas en un cultivo libre de fertilizantes químicos. Las variables tomadas como indicativo de crecimiento y desarrollo vegetal fueron: número de nodos, número de hojas y longitud del tallo. Los inoculantes (microorganismos solubilizadores de fosfatos -MSF- y bacterias fijadoras de nitrógeno -BFN-) se aplicaron en el material vegetal mencionado, efectuando mediciones durante tres meses. Los resultados muestran un efecto positivo de estimulación de crecimiento medido en longitud del tallo en las plantas tratadas con los inoculantes, específicamente en patilla y propágulos de A. germinans mantenidos en vivero.
In order to test the effect of two microbial inoculants (obtained from red and black mangrove roots) on the growth and stability of mangrove and watermelon plants, four treatments were carried out in San Andres Island, Colombia. The treatments consisted in the application of the inoculants in: A. germinans propagules collected in a mangrove area, and then individually planted in gavels with sun-pasteurized soil (in order to decrease the microbial load), A. germinans and R. mangle plants collected in the proximity of nursery trees, A. germinans and R. mangle planted and maintained in nursery, and in Citrullus vulgaris seeds planted in a traditional cultivar without chemical fertilizers. The growth and vegetative development variables were: number of nodes, number of leaves and steam length. The inoculants (phosphate solubilizing microorganisms -PSM- and nitrogen fixing bacteria -NFB-) were applied in the mentioned vegetable material, doing measures during three months. The results show a positive effect on growth measured by steam length in plants treated specifically with the inoculants in C. vulgaris and A. germinans seedlings maintained in nursery.
In order to test the effect of two microbial inoculants (obtained from red and black mangrove roots) on the growth and stability of mangrove and watermelon plants, four treatments were carried out in San Andres Island, Colombia. The treatments consisted in the application of the inoculants in: A. germinans propagules collected in a mangrove area, and then individually planted in gavels with sun-pasteurized soil (in order to decrease the microbial load), A. germinans and R. mangle plants collected in the proximity of nursery trees, A. germinans and R. mangle planted and maintained in nursery, and in Citrullus vulgaris seeds planted in a traditional cultivar without chemical fertilizers. The growth and vegetative development variables were: number of nodes, number of leaves and steam length. The inoculants (phosphate solubilizing microorganisms -PSM- and nitrogen fixing bacteria -NFB-) were applied in the mentioned vegetable material, doing measures during three months. The results show a positive effect on growth measured by steam length in plants treated specifically with the inoculants in C. vulgaris and A. germinans seedlings maintained in nursery.
Abstract
Keywords
Ciencias Bilógicas ; Bilogía ; Medicina ; Mangroves ; Plant Growth Promoting Microorganisms ; Restoration ; Biofertilizers ; Ciencias Bilógicas ; Bilogía ; Medicina ; Manglares ; Microorganismos Promotores de Crecimiento Vegetal ; Restauración ; Biofertilizantes ; Solubilizadores de Fosfato ; Fijadores de Nitrógeno