physiology is that branch of science which Pertains to the physique or the bodily structure of any living being- AIl the furriers of living organisms are studied under this head Plant Physiology, specially deals with Plants antler sisters. Of the systems, the reproductory system is of the greatest importance as fares the physiology of Plants goes. Unlike humans and like animals, plants have been classified into different group son the basis of their behavior. An interesting subject, Plant Physiology, needs to be studied at length with an eye to unveiling the treasure of benefits for man. This encyclopaedia is an humble effort in the same direction which elaborately discusses all relevant issues in pros and cons.