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Arnaldoa
versión impresa ISSN 1815-8242versión On-line ISSN 2413-3299
Resumen
RAMOS OTINIANO, Cynthia Catheryne et al. Effect of NaCl and mycorrhizae (Rhizophagus irregularis) on the growth of “tomato” Solanum lycopersicum L. (Solanaceae). Arnaldoa [online]. 2021, vol.28, n.3, pp.675-692. Epub 31-Dic-2021. ISSN 1815-8242. http://dx.doi.org/10.22497/arnaldoa.283.28312.
“Tomato” Solanum lycopersicum L. (Solanaceae) is a vegetable with a high demand for human consumption. However, it is susceptible to salinity, which causes reduction in growth and development in this crop. One of the agronomical practices that alleviates salt stress is inoculation with mycorrhizal fungi. The objective of this research was to determine the effect of NaCl and Rhizophagus irregularis on the growth of tomato under greenhouse conditions. For that purpose, tomato plantlets were treated with three inoculum concentrations (0; 1.5; 3g) and then submitted to three NaCl concentrations (0, 100 y 200mM) for 30 days. Then the growth variables were evaluated. Results show that treatments induced significant differences in tomato growth. Increasing levels of salinity induced reduction of all variables measured with the exception of root length. Meanwhile, inoculum concentrations induced growth on stem length, stem diameter, number of leaves, number of internodes, stem fresh weight and root fresh weight. Inoculation with mycorrhiza induced a reduction in the growth arrest caused by salinity.
Palabras clave : Rhizophagus irregularis; mycorrhiza; Solanum lycopersicum; salinity; growth.