The results presented in Table 3 showed that the highest concentration of Trichoderma propagules was obtained for T. atroviride TRS 43, a little less for T. harzianum TRS 59 and the least (10 times less) for T. virensTRS 106. However, in all cases the amount of Trichoderma spores was high, more than 107 cfu g−1of T-GRAN.