Recent progress in explaining the science behind biological processes has significantly enhanced our ability to exploit them for the benefit of man kind and the environment. The evolution of plant breeding is a classic example of how improved biological understanding has been adapted to provide more effective methods of meeting the demands of a changing world. Modern biotechnology is the latest stage in the development of plant breeding technology. The tools of the biotechnologist increasesd the speed and precision of plant breeding techniques and widened the choice of characters for selection. Modern biotechnology allows crop improvement to take place at the level of individual genes. This book provides an overview of the application of modern biotechnology in plant breeding. It will certainly meets with interests and needs of up to date information of plant breeders, may they be advanced students, practitioners, teachers or researchers.