Geography, through climate and landscape, influences natural selection and gene flow. Recognizing this relationship, plant genetic resource workers have always used the geographic information available to them to guide the exploration, collecting, and use of genetic diversity. The authors review the application of spatial analysis to genetic resource conservation and use issues, and discuss the successful implementation of geographic analysis in individual projects as well as the institutional adoption of GIS practice. Also Designing Crops for Added Value - ISBN 089118144X Land Application of Agricultural, Industrial, and Municipal By-Products - ISBN 0891188347 The American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America are prominent international scientific societies headquartered in Madison, Wisconsin. The Societies specialize in peer-reviewed, high-quality science titles for a wide variety of audiences. Some of the many areas we publish in -Soils Methods and Management -Crop Development and Improvement -Agrosystem Management and the Global Food Crisis -Environmental Conservation and Climatology