DISCUSSION
In the present study, the treatment T.harzianum + T.viride
+ EM (T5) recorded higher survival of plants under sick
soil condition. The reduction in root rot disease by
Trichoderma species might be due to higher antagonistic
potential like antibiosis, parasitism and production of lytic
enzymes which is in accordance with the findings of Singh
et al. (2004). Volatile and non volatile antibiotics produced
by T.harzianum are responsible for the inhibitor action
against root pathogen, Fusarium culmorum (Iqbal et al.,
1994) and F.oxysporum (Michrina et al., 1995). Prashanthi
et al. (1997) also reported that seed treatment with
T. harzianum and T.viride was more effective in controlling
Rhizoctonia solani in Phaseolus vulgaris under both green
house and field conditions.