Induction of plant defense mechanism by the effective isolate of Bacillus subtilis in coriander

Abstract

Coriander, is an important spice crop affected by wilt disease caused by Fusarium oxysporum. A glass house trial was conducted to study the Induces Systemic Resistance (ISR) in coriander plants by Bacillus subtilis. The study revealed that the plants applied with B. subtilis as seed treatment @10g/kg of seed along with soil application as basal and topdressing on 30 DAS recorded maximum activity of PO (2.175 in absorbance min / g of fresh tissue), PPO (2.830 in absorbance min/g of fresh tissue), PAL (2.476 changes in absorbance min/g of fresh tissue) and phenol content (6.396 mg/g of fresh tissue) compared to control. This treatment also recorded minimum wilt incidence of 16.33 % against 35.56 % wilt incidence in control.