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Title: Determination of biochemical baseline of resistance against bacterial leaf spot of chilli after application of plant defense activators
Authors: Zaid Bin Tahir, Muhammad Atiq, Nasir Ahmed Rajput, Azeem Akram, Asif Mahmood Arif, Shahid Iqbal, Shafqat Ali, Ahmad Nawaz, Muhammad Usman, Abuzar Hasnain
Journal: Journal of Global Innovations in Agricultural Sciences
Publisher: Society for Innovative Agriculture, University of Agriculture
Country: Pakistan
Year: 2023
Volume: 11
Issue: 1
Language: English
Keywords: Salicylic acidKH2PO4K2HPO4PeroxidaseTotal soluble phenolsTotal soluble sugars
Present study was designed to determine the progressive alterations in the leaves of chilli after the application of plant activators to pave the way towards fruitful management of bacterial leaf spots of chilli. Different plant defense activators such as KH2PO4, K2HPO4 and salicylic acid were used and alterations in the biochemicals of chilli were quantified by following standard protocols. In the first experiment, KH2PO4, K2HPO4 and salicylic acid were evaluated at a different concentration under field conditions. Application of salicylic acid expressed less disease incidence (21.111), followed by K2HPO4 (25.167) and KH2PO4 (28.889) as compared to the control. Alterations in biomolecules (SOD, POD, CAT, H2O2, TSS and TSP) were quantified with the application of salicylic acid (0.9285, 0.9297, 0.9347, 1.2278, 0.6663, 0.6804 and 0.6723) followed by K2HPO4 (0.6502, 0.6605, 0.6544, 0.7689, 0.5122, 0.5322 and 0.5222) µg/g. Randomized Complete Block Design (RCBD) was used for the field experiments.
Keywords: Salicylic acid, KH2PO4, K2HPO4, Peroxidase, Total soluble phenols, Total soluble sugars
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