Foliar spray of two chemical compounds viz., calcium chloride and ß-amino-n-butyric acid @ 25mM was found to induce resistance in rice plants artificially inoculated with D. oryzae grown under stress conditions of nitrogen and water. Calcium chloride was superior over ß - amino-n-butyric acid in reducing disease severity under both nitrogen and water stress conditions. The interaction between the chemical compound and N-level; chemical compound and irrigation condition was non significant indicating that both the stress conditions did not affect the efficacy of these chemical compounds in induction of resistance.
Rice, brown spot, Drechslera oryzae, N-level, irrigation, chemical compounds, induced resistance
