The present set (10 Vols.) is the compilation of a comprehensive account of the fundamental principles of plant physiology. It incorporates and organizes the information concerning plant physiology from relevant and authentic sources. It presents a connected and precise account of the subject matter of this important branch of Botany which forms an integral part of the studies undertaken by the undergraduate and postgraduate students of the subject. The principles have been outlined in considerable detail with illustrations along with the fundamental facts and theories that explain the life processes of plants. Most of illustrations have been taken from professional papers and standard books and journals. The main objective of the present set is to keep pace with continuing rapid developments in various branches of plant physiology.