IMPACT OF FOLIAR APPLICATION OF SALICYLIC ACID ON SALINITY TOLERANCE IN SORGHUM
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Authors
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ANNY MRUDHULA K
Saline Water Scheme, Bapatla - 522101 Acharya N.G Ranga Agricultural University, Guntur. Andhra Pradesh, India.
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PRASUNA RANI P
Saline Water Scheme, Bapatla - 522101 Acharya N.G Ranga Agricultural University, Guntur. Andhra Pradesh, India.
Keywords:
Abiotic stress, Antioxidants, Growth regulators, Salicylic acid, Salinity tolerance.Abstract
Salinity is a major abiotic stress factor that restricts crop growth and yield, particularly in
arid and semi arid regions. To mitigate the adverse effects of salinity on crop performance, a field
experiment was conducted during the kharif seasons of 2023 and 2024 at Kakarlamoodi village.
The objective was to evaluate the influence of foliar application of salicylic acid on enhancing
salinity tolerance in sorghum. The study was arranged in a randomized block design with six
treatments, replicated four times. Five concentrations of salicylic acid (50, 100, 150, 200, and 250
mg L-1) along with a control were tested. Results indicated that foliar application of salicylic acid at
250 mg L-1 produced significantly higher grain yields (6300 and 6235 kg ha-1), whereas the lowest
yield was observed with 50 mg L-1. Furthermore, total chlorophyll content and antioxidant enzyme
activity were maximum under the 250 mg L-1 treatment, highlighting its effectiveness in improving
sorghum performance under saline conditions.
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