Figure 2.

Root surface area (cm² plant^-1; mean ± S.E.; n=3) and diameter (µm; mean ± S.E; n = 3) of oilseed rape plants at 2-leaf stage (24 days after sowing) grown in rhizoboxes containing soil inoculated (+ Rhizoctonia) and not inoculated (– Rhizoctonia) with R. solani, under three different seed treatments, i.e. Thiram, Sedaxane alone (Sdx) and Sedaxane in combination with Fludioxonil and Metalaxyl-M (Flu+Met+Sdx). Different letters indicate significant differences among treatments (Newman–Keuls test, p ≤ 0.05) within the same soil conditions, i.e. + Rhizoctonia (round brackets) or – Rhizoctonia (squared brackets), and among + Rhizoctonia treatments and absolute control (brace brackets).