Dear all I wish to detemine the effects of a +/- 10% rainfall on yield of the wheat. I would really appreciate If someone tell me how I can do this in the environmental section (climate change study) of DSSATv.3. With the best regards A.Ghaffari Abdolali Ghaffari PhD student (MCR) Wye College, University of London Wye, Ashford Kent TN25 5AH UK Tel:+44-(0)1233 812401 ext. 391 Fax:+44-(0)1233 812855 E-Mail: [log in to unmask]