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Revista mexicana de fitopatología

versión On-line ISSN 2007-8080versión impresa ISSN 0185-3309

Resumen

RUIZ-CISNEROS, María Fernanda et al. Effect of Trichoderma spp. and phytopathogenic fungi on plant growth and tomato fruit quality. Rev. mex. fitopatol [online]. 2018, vol.36, n.3, pp.444-456. ISSN 2007-8080.  http://dx.doi.org/10.18781/r.mex.fit.1804-5.

The objective of this study was to determine the effect of three Trichoderma species when applied alone and when are confronted with three phytopathogens on plant growth and tomato fruit quality. The substrate of the plants was inoculated with Trichoderma spp. alone and together in confrontation with Alternaria solani, Fusarium oxysporum y Phytophthora infestans. In plant, the height and weight, length and weight of roots, total chlorophyll content in leaves, and yield were determined. Fruits were characterized by color, weight, size, total soluble solids (TSS), titratable acidity, firmness and bromatological composition. Plants inoculated with Trichoderma showed significant increases in most of the variables evaluated, where T. longibrachiatum significantly promoted the growth plants (height ≥ 13%) and yield (14%), obtaining fruits with higher titratable acidity and lower TSS content. Pathogens decreased yield (23%). Diameter, firmness and protein content in fruits increased with the inoculation of Trichoderma. Color and fiber in fruits were not affected by treatments. Trichoderma strains showed potential to improve fruit quality.

Palabras llave : antagonists; phytopathogens; TSS; firmness; bromatological analysis.

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