Yvette Wohlfahrt successfully defended her doctoral thesis titled “Effects of elevated CO₂ on physiology, yield and fruit composition of Vitis vinifera L. cvs. Riesling and Cabernet Sauvignon“ on December 20^th, 2021 at Hochschule Geisenheim University.

Her Doctorate was supervised by Prof. Dr. Manfred Stoll, Department of General and Organic Viticulture, Hochschule Geisenheim University and Prof. Dr. Bernd Honermeier, Faculty 09,  Department of Agronomy and Crop Physiology, Justus Liebig University, Giessen and jointly evaluated together with PD. Dr. Daniel Molitor, Department for Crop Sciences, University of Natural Resources and Life Sciences, Vienna, Austria, and Prof. Dr. Justine E. Vanden Heuvel, School of Integrative Plant Science, Horticulture Section, Cornell University, USA.