ANTAGONISM OF GLIOCLADIUM VIRENS (GVP) TO RHIZOCTONIA SOLANI Secondary Metabolites of Gliocladium sp.,A Growth Accelerating Fungus for Anoectochilus roxburghii (Wall.) Lindl. Cloning,Expression and Characterization of Glucoamylase from Gliocladium roseum Assessment the biocontrol efficacy of Gliocladium roseum on rice sheath blight using Real-time fluorescent PCR method