Figure 4. ‘Degree of mycorrhization’ by Laccaria bicolor S238N depending on ‘host species’, ‘PAC strain’ and ‘temperature’ (degrees of mycorrhization: 1 = 1–25% of the roots mycorrhized, 2 = 26–50%, 3 = 51–75%, 4 = 76–100%).

MYC indicates ‘mycorrhization’ by Laccaria bicolor S238N and letters A, B, C, and D inoculation with PAC strains A, B, C, or D (see Table 1). There are no significant differences between any two ‘fungal treatments’ within one ‘host’ and ‘temperature’. The plots are drawn according to Crawley [60].