Resumen

ESTEBAN, Wladimir; PACHECO, Patricia; ANGEL, Yeny  y  BASTIAS, Elizabeth. Effect of the incorporation organic matter on the physiological and chemical response of tomatoplants (Solanum lycopersicum L.) grown under salinity and excess boron. Idesia [online]. 2017, vol.35, n.2, pp.33-39.  Epub 13-Mayo-2017. ISSN 0718-3429.  http://dx.doi.org/10.4067/S0718-34292017005000014.

The effect of the incorporation of organic matter (M.O.) (4% and 6%) on the soil as a mitigation of salinity and excess boron in tomato plants was evaluated. The physiological parameters (net assimilation of CO₂(A), transpiration rate (E) and stomatal conductance (g_s)) were analyzed, and ions as boron (B) and sodium (Na⁺) content in tomato plant tissue "Poncho Negro" (PN) and commercial hybrid "Naomi". The plants grew in conditions of high salinity and excess of B in field in the valley of Lluta, north of Chile. The results showed an increase in CO₂ assimilation with the incorporation of 6% of M.O. to the soil and a lower accumulation of B in pre-harvest leaves, both in the "Poncho Negro" variety and in "Naomi". As for the Na⁺ content, this was distributed in similar proportions in the different structures of the plant, with a better effect in "Poncho Negro".

Palabras clave : organic matter; salinity; tomato; Lluta valley.