Fig. 5From: Molecular evidences for population differentiation and the migration from south to north of Puccinia triticina in eastern ChinaAverage horizontal wind field from April to June supports airflow driving force for Pt urediniospores from the south to north. Colored areas show different wind speeds, and the wind field streamlines and directions are shown with dark blue arrows. a Average horizontal wind field at 10 m altitude from April to June 2020. b Average horizontal wind field at 10 m altitude from April to June in 2016–2020. c Average horizontal wind field at 900 hPa from April to June in 2016–2020Back to article page