Evaluation of biochemical basis of chemical induced basal rot tolerance affecting garlic cultivation in Himachal Pradesh

This study aimed to investigate the biochemical response of chemical inducers for disease resistance in garlic (Allium sativum L.) in Himachal Pradesh. Garlic is the second most grown crop in India, which is known for their high nutritional and medicinal properties. The disease has the potential to cause massive losses in the garlic crop, reducing farmers economic profitability; therefore, management may be required. Biochemical evaluations revealed considerable increase in the phenolic activities of the phenylalanine ammonia lyase (PAL), peroxidase (PO) and polyphenol oxidase (PPO) upon treatment with various disease resistance inducers especially ß-aminobutyric acid (BABA), acibenzolar-S-methyl (ASM) and salicylic acid (SA), which were significantly correlated with the basal rot tolerance in the susceptible garlic cultivar.