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Revista de la Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo
On-line version ISSN 1853-8665
Abstract
BOENEL, Micaela; FONTENLA, Sonia; SOLANS, Mariana and MESTRE, María Cecilia. Effect of yeast and mycorrhizae inoculation on tomato (Solanum lycopersicum) production under normal and water stress conditions. Rev. Fac. Cienc. Agrar., Univ. Nac. Cuyo [online]. 2023, vol.55, n.2, pp.141-151. ISSN 1853-8665.
The integration of beneficial microorganisms into agricultural systems can improve crop resistance to stress and increase yields. We studied tomato (Solanum lycopersicum) production in a greenhouse experimental trial over a complete growing season. The exper imental design involved three factors: irrigation condition (normal/low), addition of the arbuscular mycorrhizal fungi Funneliformis mosseae (with/without), and inoculation with four native soil yeasts (Candida aff. ralunensis; Candida sake; Lachancea nothofagi and Candida oleophila). Co-inoculation of F. mosseae and yeasts did not affect the tomato plants. Addition of F. mosseae increased mycorrhizal colonization and production variables regardless of irrigation level; however, its effects on growth were variable. None of the inoc ulated yeasts increased mycorrhizal colonization. C. aff. ralunensis and C. oleophila inocu lation increased stem diameter under all conditions studied. C. aff. ralunensis inoculation enhanced fruit set and the fruit/flower ratio under normal irrigation conditions, while C. sake inoculation increased the fruit/flower ratio under low irrigation conditions. Arbus cular mycorrhizae inoculation is presented as a beneficial production strategy to increase plant tolerance and improve water use. We propose that C. aff. ralunensis and C. oleophila inoculation improves plant vigor.
Keywords : Candida aff. ralunensis; Candida sake; Candida oleophila; Lachancea nothofagi; Funneliformis mosseae; Water efficiency; Plant growth promotion.