Table 1 Grouping of Trichoderma isolates based on their colony characteristics.
Group | Colony characteristics$ | |||
|---|---|---|---|---|
Texture | Margins | Colour | Shape | |
I | Cottony (33.33%) Psh2, Psh3, PTi1, PTi2, PR3, NT2, Z1, Z2 | Regular (87.50%) Psh1, Psh2, Psh3, PTi1, PTi2, PNi2, PNi3, PR1, PR2, PR3, SS, SR, SG, TB1, TB3, NT1, NT2, NT3, Z1, Z2, Z3 | White centre with light green outer region (20.83%) Psh1, PTi1, PNi2, PR3, TB1 | Green conidial production denser at centre than towards the margins in 1–2 concentric rings (16.67%) Psh2, Psh3, PTi2, Z1 |
II | Fluffy (41.67%) Psh1, PTi3, PNi1, PNi3, PR1, PR2, SR, SG TB2, TB3 | Irregular (12.50%) PNi1, PTi3, TB2 | White centre with dark green outer region (45.83%) Psh2, Psh3, PTi2, PTi3, PNi1, Z1, SS, TB2, NT1, NT3, Z3 | White mycelia at the centre with less green conidial production dispersed near the margins (16.67%) PTi1, PR3, NT2, Z2 |
III | Velvety (25%) PNi2, SS, TB1, NT1, NT3, Z3 | White centre with black green outer region (16.67%) PR1, PR2, SG, Z2 | Green conidia distributed throughout the plate with yellow pigmentation or whitish aggregate of conidia around the centre (25.00%) PNi2, SS, TB1, NT1, NT3, Z3 | |
IV | Dull white centre with green outer region (16.67%) PNi3, SR, TB3, NT2 | White mycelia with limited green conidial formation in concentric rings near the centre or dispersed along the margins (41.67%) Psh1, PTi3, PNi1, PNi3, PR1, PR2, SR, SG, TB2 and TB3 | ||
