Fig. 8From: Alpine ecology, plant biodiversity and photosynthetic performance of marker plants in a nitrogen gradient induced by Alnus bushesFluorescence induction scans from 10 μs to 3 s after double normalization of the O-J phase between Fo = 0 and FJ at 3 ms = 1. Calamagrostis (sites b-2 and b-3), Rhododendron (sites b-2 and b-4) (data of 2. August 2017) and Vaccinium (sites b-3 and b-4) (data of 13.September 2017). All data points are means of 15 measurements (for comparison see also Fig. 6)Back to article page