This book embodies the results of some of the investigations carried out by the authors and presents a discussion on electric control of graft compatibility and subsequent growth in plants.The book aims to present the outcome of experimental studies on impact of weak electric current on graft union and plant growth alongwith to conceptualize a model of an electronic biosensor capable to detect graft compatibility at early stage. The present book proposes the methods of enhancing the graft success rate which is an important, feasible and dominant over other means for getting good yields from the plants as it does not implicate soma clonal variation in the yields.The subsequent effect of electric field on plant growth and seed germination has also been discussed. The text describes the special features of an user friendly biosensor and its development as a novel technique for early detection of graft compatibility. The electric control of plant growth and seed germination rate has been characterized at molecular level by discussing the protein and DNA profiling. The book is designed for the researchers engaged in the area of bioelectromagnetism to develop a viable Agro-technology.