Table 6.

Compared susceptibility to crown and root rot infections of six commercial fennel cultivars.

Cultivar	Plant mortality (PM) 1	Disease incidence (DI) 1	Symptom severity (SS) 2
‘Narciso’	72.92 ± 2.08 a	100 a	4.15 ± 0.10 a
‘Apollo’	58.33 ± 4.17 b	100 a	4.33 ± 0.17 a
‘Pompeo’	45.83 ± 4.17 b	100 a	3.37 ± 0.13 b
‘Aurelio’	10.42 ± 2.08 c	100 a	2.56 ± 0.06 b
‘Archimede’	0.00 d	83.33 ± 4.17 b	1.94 ± 0.10 c
‘Pegaso’	0.00 d	77.08 ± 2.08 b	1.48 ± 0.10 d

¹Data derived from repeated experiment. Standard error of the mean = SEM, means are from 24 fennel young plants. Arithmetic means are presented although analysis was performed on angular transformed values. Means followed by different letters within the column are significantly different according to Fisher's least significance differences test (α = 0.05). ² Differences among SS (0-to-5 scale) data for each treatment were analysed with Friedman two-way analysis of variance by mean rank scores (P < 0.001) followed by all pairwise multiple comparison with Wilcoxon.