Daily germination rates of temperate tree species’ seed under elevated ozone fumigation

The closed chamber ozone fumigation system is located at the Climate Change Research Centre, Henfaes Farm, Abergwyngregyn. A minimum of 40 seeds were fumigated per chamber per species, maximum 80 seeds. Visual examination of seeds for radical emergence was used as the threshold for seed dormancy breaking/germination initiation, which was checked daily. New germinants for each day were recorded. Obvious errors in the data (decreases in germination total) were corrected prior to upload to EIDC. The data were collected by PhD candidate Jack Atkin-Willoughby from Bangor University and UK Centre for Ecology and Hydrology.