Courses in plant physiology aimed primarily at students of general biology, agronomy, ecology and plant biotechnology.The fields of study of plant physiology are very diversified and concern in particular :Nutrition, in particular the absorption of mineral elements and the functions of synthesis;Respiration and gas exchange in plants;Transpiration is affected by heat and by the circulation of dry, hot air, so plants lose H2O;Relationships between plants and their environment;Growth and development;Reproduction, both vegetative and sexual.This book is divided into three parts:Part I: NUTRITION AND METABOLISM OF PLANTSCHAPTER I : Water nutritionCHAPTER II : Mineral nutritionCHAPTER III: Plant metabolism (carbon nutrition)Part Two: GROWTH AND DEVELOPMENT OF THE PLANT.Part Three: VEGETABLE HORMONES.