Molecular Biology and Molecular Genetics, (Discontinued March 2000, Reinstated and Revised June 2002) 33 Biotechnology (General), (Revised June 2002) 29 Biotechnology 28 Plant Breeding and Genetics 27 Soil Water Management (Irrigation and Drainage), (Revised June 2002) 15 Agricultural Economics 14 Plant breeding 14 Plants 14 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 14 Genetic Engineering, Gene Transfer and Transgenics, (New June 2002) 13 Plant Production 13 Plant diseases 13 Taxonomy and Evolution 13 Field Crops, (New March 2000) 12 Genetically engineered organisms 12 Irrigation 12 Plant Pests, (New March 2000) 12 Policy and Planning 12 Genetics 11 Horticultural Crops, (New March 2000) 11 Plant Physiology and Biochemistry 11 Laws and Regulations 10 Molecular genetics 10 Transgenic plants 10 Animal Genetics and Breeding, (New March 2000) 9 Crop production 9 Genetic engineering 9 Genomics 9 Plant pathogens 9 Plant pests 9