Che Liu (Department of Forest Sciences) will have a doctoral defense on 8 November (Friday) starting 13:00 in Lecture Hall B2, Forest Sciences (B) Building, Viikki. The title of Che’s dissertation is 'Whole-tree Lagrangian optimal stomata model and its application to predicting cambial growth of tree stem' (https://doi.org/10.14214/df.356). The custos is Professor Teemu Hölttä (Department of Forest Sciences), and the opponent Professor Andrew Friend (University of Cambridge, UK).