Plants are fundamental to all life on Earth. They provide us with food, fuel, fiber, industrial feedstocks, and medicines. Plant science is essential to maintaining the world around us. The topics covered are inclusive but not limited to plant breeding, mode of reproduction in crop plants, plant variation, genetic consequences of self and cross-pollinated crops, male sterility, polyploidy and mutation breeding. The aim of this book is to give a sequential knowledge of plant pathology, plant breeding, plant biochemistry, environmental science and agro-ecology, vegetable production and biostatistics and computers in this book.