Prof. Peter J. GregoryDr Peter J. Gregory is Emeritus Professor of Global Food Security at the University of Reading, UK, where he was previously Professor of Soil Science. Amongst many distinctions, Professor Gregory is a former President of the International Socity of Root Research (ISRR) as well as former Chief Executive of the Scottish Crop Research Institute (now part of the James Hutton Institute) and East Malling Research (now NIAB-EMR). He is internationally-renowned for his research in soil and crop root science. Read More Read Less