Fig. 4From: Diversity of root-knot nematodes in Moroccan olive nurseries and orchards: does Meloidogyne javanica disperse according to invasion processes?Boxplots for Meloidogyne species in the olive nurseries sampled according to the regions surveyed (J Jbala, G Guerouane; H Haouz; S Souss) (a–d indicates significant groups, P < 0.05)Back to article page