Growth Plant Breeding and Genetics 8 Plant Physiology and Biochemistry 8 Plant Production 8 Animal Nutrition (General) 7 Horticultural Crops, (New March 2000) 7 Plant Pests, (New March 2000) 7 more ... Plant development 7 Plant pests 7 Animal Nutrition (Physiology) 6 Food Composition and Quality 6 Livestock 6 Meat Producing Animals 6 Pest control 6 Plant diseases 6 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 6 Animal Physiology and Biochemistry (Excluding Nutrition) 5 Animal nutrition 5 Crop Produce 5 Crop yield 5 Mathematical models 5 Mathematics and Statistics 5 Metabolism 5 Plant disease control 5 Animal Genetics and Breeding, (New March 2000) 4 Crop production 4 Feeds 4 Forests and Forest Trees (Biology and Ecology) 4 Genetics 4 Molecular Biology and Molecular Genetics, (Discontinued March 2000, Reinstated and Revised June 2002) 4 less ...