Abstract
An investigative research experiment was undertaken to study the effect of exogenous
application of salicylic acid on tomato fruit of Cv. Abhinav during its storage period at
24oC. The fresh tomato fruits (Lycopersicon esculentum Mill.) of Cv. Abhinav were
harvested at the proper stage of physiological maturity. The fruits were washed thoroughly
with clean water followed by fungicidal treatment of 500 ppm benomyl before salicylic
acid treatment. Thereafter, the fungicide treated tomato fruits were subdivided into four
different lots and then immersed in salicylic acid (SA) solutions at 50, 100, 150 and 200
ppm concentrations for 30 mins respectively and kept for storage studies along with
control fruits. During the storage period, the observations were recorded at frequent
intervals for various physico-chemical parameters in which tomatoes treated at 200ppm
salicylic acid concentration found significant with respect to the lower physiological loss
in weight (10.3%), a gradual increase in TSS and colour (h) from 1.4 to 3.3oBrix and -3.63
to 2.59 respectively. Moreover, the considerable decrease was observed in titrable acidity
from 1.34 to 0.14%, Ascorbic Acid (SA) content from 73.14 to 22.10 mg/100 g and
texture in terms of firmness decreased from 354 to 96 gf. The total phenolic content of
200 ppm salicylic acid treated tomatoes showed a gradual decrease from 3.79 to 3.14 mg
GAE/g and lycopene content increased slowly from 7.01 to 12.31 mg/100 g therefore,
found significant as compared to rest of the treatments and control fruits.
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