Abstract

CAMEJO-SERRANO, Yanelis et al. Effect of the combined treatments of low X-rays doses and Biobras-16 on tomato (Solanum lycopersicum L.) cv. Vyta for salinity conditions. cultrop [online]. 2016, vol.37, n.3, pp. 85-93. ISSN 1819-4087.  http://dx.doi.org/10.13140/RG.2.1.2060.0568.

Salinity is one of the adverse environmental condition that cause high affectations to agricultural crops. The objective was to evaluate the combined effect of low doses of X-rays and different concentrations of Biobras-16 on tomato plants grown in saline conditions. The experiment was carried out at “Jorge Dimitrov” Agricultural Research Institute during the years 2009 to 2012. Fresh tomato seeds of variety cv. Vyta were exposed to X-ray doses of 20, 25 and 30 Gy and 15 days after transplantation the plants were sprayed with two concentrations (1,5 and 2,0 mg L^-1) of  Biobras-16. Two substrates were used, one consisting of a Vertisol soil salinized with electrical conductivity of 6 dS m^-1 extract of soil saturation and Vertisol soil no salinized. The best combination of treatments was observed for 30 Gy +2,0 mg L^-1, which increased significant (p≤0,05) the salt tolerance in plants, the tomato yield and its components

Keywords : brassinosteroids; saline stress; radiostimulation; tolerance.

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