PLANT METABOLISM CLIMATE AND WEATHER 1 CROP IMPROVEMENT 1 CROP PRODUCTION 1 ENVIRONMENTAL STRESSES 1 FUNCTIONS OF ROOTS 1 GROWTH PHYSIOLOGY 1 INTERESTING PHYSIOLOGICAL PROCESSES 1 METHODS AND TECHNIQUES 1 PHOTOSYNTHESIS 1 PLANT CELLS 1 PLANT NUTRITION 1 PLANT ORGANIZATION 1 PLANT PATHOLOGY 1 PLANT PHYSIOLOGY 1 PLANT ROOT 1 PLANT STRUCTURE 1 PLANT WATER RELATIONS 1 RECENT ADVANCES 1 REPRODUCTIVE PHYSIOLOGY 1 SOIL AND LAND 1