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Efectos de la inoculación con hongos micorríticos (Glomus intraradices) y bacterias BPCV (Pseudomonas fluorescens) sobre el cultivo de tomate (Solanum lycopersicum L.) en vivero y en cultivo bajo invernadero

María Virginia Rizzardi Carlos Bouzo Silvia Benientende Juan Carlos Favaro Roxana Maumary Alejandra Becerra

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Resumen/Descripción – provisto por el repositorio digital
Effects of arbuscular mycorrhiza (AM), Glomus intraradices and plant growth promoting rhizobacteria (PGPR), Pseudomonas flurescens were evaluated in tomato seedlings, and on plant growth, yield and fruit quality of tomato under greenhouse, in common work´s conditions for producers in San Juan. Two experiments were established in different greenhouses, with four treatments (control, plants inoculated with G. intraradices, inoculated with P. fluorescens and co-inoculated) and three replications. The substrate was inoculated with AM through a commercial granulated (spores of G. intraradices), and with PGPR with a suspension 1x109 UFC cm-3 of Pseudomonas fluorescens. At nursery stage leaf area, dry weight of roots and aerial part of the seedlings were analysed, verifying that those that were inoculated together with G. intraradices and P. fluorescens had a greater radical and aerial development. Under cover culture began with the transplanting of inoculated seedlings and the evaluated variables were: leaf area, plant dry weight, root density, concentration of NPK at foliar tissue, bunches-plant-1, fruits-plant-1, fruits weight-plant-1, fruit equatorial diameter and TSS of fruit. The results did not confirm the existence of significant differences for any of the variables analysed. Mycorrhizal colonization varied between 32 and 41% and was observed in all treatments including control, revealing the presence of native AM. The colony count of Pseudomonas spp. in rhizosphere was similar among all treatments (10e6-10e7 cfu/g), even in the non-inoculated control treatment.Comparative molecular analysis of the colonies showed that none had a genetic pattern similar to the inoculated strain, demonstrating the existence of indigenous strains.
Palabras clave – provistas por el repositorio digital

Glomus intraradices; Pseudomonas fluorescens; Co-inoculación; Greenhouse tomato; Seedlings development; Yield; Co-inoculation; Tomate en invernadero; Desarrollo de plántulas; Rendimiento

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Tipo de recurso:

tesis

Idiomas de la publicación

  • español castellano

País de edición

Argentina

Fecha de publicación