demonstrated the dependency of the disease suppressing
ability of different biochars on the feedstock and production
parameters. Biochar-induced systemic resistance
was documented against gray mold (Botrytis
cinerea) and powdery mildew (Oidiopsis sicula) on
pepper and tomato (Elad et al. 2010). Recently, Jaiswal
et al. (2015) reported that the biochar application suppresses
damping off (Rhizoctonia solani) on common
bean (Phaseolus vulgaris L.) seedlings. A synergistic
effect of biochar and compost has been reported to
improve soil fertility, plant growth and beneficial microbial
activity in the rhizosphere (Agegnehu et al. 2015;
Fischer and Glaser 2012). Only recently, it has been
shown that tomato plants growth response and Fol
development in plants inoculated with microconidia is
dependent on the raw material used for the production of
biochars (Akhter et al. 2015).