Plant Adaptation and Crop Improvement focuses on the opportunities for increasing the efficiency of crop improvement by understanding the basis of variation for plant adaptation in agricultural production systems. Crop improvement strategies based on combinations of the statistical modelling methodologies used by plant breeders and the crop modelling methodologies used by crop physiologists/agronomists are developed and discussed. The book captures much of the experience of scientists from around the world who have worked on the challenging problem of achieving crop improvement in variable crop production systems. It represents a major synthesis for workers in plant breeding, crop physiology and agronomy.