Scientific Exchange USA Scientist Dr Tom Sinclair (USDA/University of, Florida) to Narrabri, Following the International Crop Science Congress last year we were presented with a, unique opportunity to host internationally respected crop physiologist Dr Tom, Sinclair in Narrabri. This proposal supported a 10 day visit to Narrabri by Dr Sinclair, following the Crop Science congress to?*Meet with researchers currently working on crop water relationships, (evapotranspiration) and discuss the range of different approaches taken. This is, especially important exposure since we have young researchers starting work in, these areas. * Meet with other researchers working in crop physiology/agronomy and modeling, to discuss research outcomes and approaches taken in the areas of water use, efficiency and simulation modeling of crop growth.* Invite Dr Sinclair to represent his Crop Science Congress talk at Narrabri, 'Increasing yield potential of legume crops - similarities and contrasts with, cereals