Researcher at Embrapa Soybean. Graduate at Agronomic Engeneering from Universidade Federal de Pelotas (1985), master's at Agronomy from Universidade Federal de Pelotas (1988) and Ph.D. at Agronomy from Universidade Federal do Rio Grande do Sul (1991). Has experience in Agronomy, focusing on Agrometeorology, acting on the following subjects: ecophisiology, water deficit, crop models and climatic changes. Was Head of Research and Development at Embrapa Soybean during two management periods, and the General Head at Embrapa Soybean during seven years.