Leaf lamina and leaf petiole inoculation.

<p>Inoculation of oilseed rape leaf lamina (A) or leaf petiole (B) with conidia or ascospores of <i>Leptosphaeria maculans</i>. The arrows indicate the droplets of spore suspension (either conidia or ascospores) placed on the lamina (A) or petiole (B) of leaves of doubled haploid lines A30 (susceptible) or C119 (with quantitative resistance). Plants were inoculated at 21 days after sowing when they had three fully expanded leaves.