Dear members, I'm using DSSAT to simulate the impacts of climate change on crop yields in Quebec, and I have a problem in the choice of cultivars. In previous studies done on the same subject, but with different climate and crop models, a choice of cultivars was made. I would like to use the same crops to facilitate comparisons. My problem is that the caracteristics that I have for these cultivars are harvest index, degree-days and corn heat units, yield coefficient, and % of dry matter in the main product. What I would like to know is how to convert or relate these caracteristics to those describing the cultivars in DSSAT 3.5, in order to chose the right ones to use. thank you all for your help, sincerely, Jean-Philippe Brassard Étudiant gradué Laboratoire de climatologie Département de géographie Université de Montréal tel: (514) 343-8039 email: [log in to unmask] _________________________________________________________________ Join the world’s largest e-mail service with MSN Hotmail. http://www.hotmail.com