Effects of bio priming of rice seeds with native Trichoderma spp. isolated from rice rhizospheric soil

Rice seeds were bio primed with native Trichoderma isolates for their efficacy of biocontrol and enhancing seedling vigour of the plant. In the investigation fifteen treatments were carried out using native Trichoderma isolates including the control. Among the fifteen treatments tested including the control, the treatment of T. harzianum isolate WAI-D has shown the best performance giving highest seed germination of 92.00 per cent and seedling vigour index of 944.84 which was statistically superior over other treatments and nonetheless Trichoderma viride isolate CHK-I has shown good performance which comes next to the best with germination percentage of 86.33 and seedling vigour index of 661.28 and the least per cent seed germination were observed in the control. The difference in results observed may be due to the presence of variable level of enzymatic activity of the different isolates of native Trichoderma isolates and also the difference in the ease of substantial multiplication of the biocontrol agents on seed in the process of bio priming.