Table 1.

Mean canker areas induced on dormant chestnut stems by C. parasitica strains

Strains or mutants	Canker area, cm2
	2 Weeks	3 Weeks
EP155	11.95 ± 2.73	25.20 ± 5.01
Δcpgb-1 (ΔGβ)	2.94 ± 1.01	3.97 ± 1.46
bdmA	3.03 ± 0.59	3.25 ± 0.68
Heterokaryon (ΔGβ + bdmA)	8.99 ± 1.09	19.57 ± 2.40
Complemented (bdm-1/bdmA)	11.44 ± 1.74	24.00 ± 3.00
Δbdm-1	2.05 ± 0.60	2.65 ± 0.73

Data are shown as means ± SD of 8 replicates and were determined at 14 and 21 days after inoculation.