Table 6.
Kruskal–Wallis test and multiple pairwise comparisons using the Conover–Iman procedure for the lengths of the vascular necroses for the three phytopathogen in greenhouse in vivo assays.
| Pathogen | Sample | Frequency | Sum of Ranks | Mean of Ranks | Groups | ||
|---|---|---|---|---|---|---|---|
| N. parvum | Stevioside–S. marianum negative control | 48 | 1275.500 | 26.573 | A | ||
| Stevioside–S. marianum | 64 | 5911.000 | 92.359 | B | |||
| Positive control | 64 | 8389.500 | 131.086 | C | |||
| D. viticola | Stevioside–S. marianum negative control | 48 | 2174.000 | 45.292 | A | ||
| Stevioside–S. marianum | 64 | 4272.000 | 66.750 | B | |||
| Positive control | 64 | 9130.000 | 142.656 | C | |||
| D. seriata | Stevioside–S. marianum negative control | 48 | 2062.500 | 42.969 | A | ||
| Stevioside–S. marianum | 72 | 5641.500 | 78.354 | B | |||
| Positive control | 56 | 7872.000 | 140.571 | C | |||
N. parvum = Neofusicoccum parvum; D. viticola = Dothiorella viticola; D. seriata = Diplodia seriata; S. marianum = Silybum marianum. Treatments/controls labelled with the same letters are not significantly different at p < 0.05.