Cecilia M. Futsaether,^* Ane V. Vollsnes,^** Ole Mathis Opstad Kruse,^*** Eli Otterholt,^**** Knut Kvaal,^***** Aud B. Eriksen<sup>******


*</sup>Cecilia Futsaether, PhD, is an associate professor of environmental physics at the Norwegian University of Life Sciences. Her research interests include plant biophysics, biometeorology, climate trends, and applications of imaging techniques for monitoring plant stress and plant growth. Her address: Department of Mathematical Sciences and Technology, P.O. Box 5003, Norwegian University of Life Sciences (UMB), N-1432 Ås, Norway. cecilia.futsaether@umb.no
^**Ane Vollsnes, PhD, is a research scientist in environmental physics at the Norwegian University of Life Sciences. Her research interests include plant physiological ecology, root development, and imaging techniques. Her address: Department of Mathematical Sciences and Technology, P.O. Box 5003, Norwegian University of Life Sciences (UMB), N-1432 Ås, Norway. ane.vollsnes@umb.no
^***Ole Mathis Opstad Kruse is a PhD student in environmental physics at the Norwegian University of Life Sciences. His research interests include imaging techniques for detecting stress in plants. His address: Department of Mathematical Sciences and Technology, P.O. Box 5003, Norwegian University of Life Sciences (UMB), N-1432 Ås, Norway. ole.kruse@umb.no
^****Eli Otterholt is a PhD student in the research program Technology, Design, and Environment at Oslo University College. She has an MSc in biology from the University of Oslo. Her address: Faculty of Health Sciences, Oslo University College, Pilestredet 50, N-0167 Oslo, Norway. eli.otterholt@hf.hio.no
^*****Knut Kvaal is an associate professor in informatics at Norwegian University of Life Sciences. His research interests include textural image analysis and multivariate statistics (chemometrics), with a special focus on multivariate/multispectral image analysis; electron microscopy images and modeling features in fish food; and European Union project Assessment of Historical Immovables in the Czech Republic. His address: Department of Mathematical Sciences and Technology, P.O. Box 5003, Norwegian University of Life Sciences (UMB), N-1432 Ås, Norway. knut.kvaal@umb.no
^******Aud Berglen Eriksen is head of the Phytotron and an associate professor at the Department of Biology, University of Oslo, Norway. Her research interests include plant physiology and ecology, with a focus on oxidative stress, pollution, and global warming. Her address: Department of Biology, P.O. Box 1066, University of Oslo, N-0316 Oslo, Norway. a.b.eriksen@bio.uio.no