Plant Physiology Plant Anatomy 4 Plant Genetics 3 Respiration - Plants 3 Biochemistry 2 Cellular Organization - Plants 2 Ecology and Environment 2 Entomology 2 Mineral Nutrition 2 Plant Breeding 2 Plant Pathology and Genetics 2 Algae 1 Analytical Chemistry 1 Angiosperms 1 Animal physiology 1 Biological clock 1 Botany 1 Breeding Horticultural Plants 1 Carbohydrate synthesis 1 Carbon Dioxide Fixation 1 Cell BIology 1 Cell Transpiration 1 Celluar Organisation - Plants 1 Crop Production and weed science 1 Environmental physiology 1 Enzymes 1 Foliar application 1 Foods Photosynthesis 1 Fruit trees 1 Fungi 1