Effect of the combined treatments of low X-rays doses and Biobras-16 on tomato (Solanum lycopersicum L.) cv. Vyta for salinity conditions
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Abstract
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.
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