This present book has been written to meet the specific needs of candidates appearing in Agriculture Research Service, CSIR, TIFR/NCBS, IISc (Bangalore), GATE, IIT-JAM, JRF, SRF and Biology Olympiads and other competitive examinations. A large number of mind-boggling questions of advance levels are presented. Objective Plant Physiology is an exclusive fundamental search based collection of multiple choice questions prepared for students mainly to help them revise, consolidate and improve their knowledge and skills. This book is an attempt to provide concise yet comprehensive coverage of a true concept and application based questions to develop in-depth understanding of the subject. The book comprises of twenty eight chapters covering different aspects of plant physiology containing more than 2000 questions accompanied with their answers at the end of the book.