Contents; Figures and Tables; Preface; Acknowledgments; Introduction; 1 Concepts of Plant Reproduction, Variation, Heredity, and Breeding: A Brief History; Genetics and Plant Breeding in Europe, 1700-1900; Quantitative Methods; Development of Methods and Programs; 2 Population Genetics; Genetic Processes; Genetic Systems; 3 Environmental Influences and Geographic Variation; Physical Factors Influencing Natural Selection; Geological History; Seasons, Climate, and Phenology; Regional Differences in Ecology and Genetic Systems; Experiments: The Theory; Variation Patterns |