Book excerpt: This book has been written to meet the specific needs of candidates appearing in Agriculture Research Services, 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. We have tried our best with wide array of questions covering minutest details of the subject in simpler form. 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. The book comprises of twenty nine chapters covering diffferent aspects of plant physiology containing more than 2650 questions accompained with their answers.