Plant Breeding and Genetics 45 Genetic Engineering, Gene Transfer and Transgenics, (New June 2002) 36 Biotechnology 35 Molecular Biology and Molecular Genetics, (Discontinued March 2000, Reinstated and Revised June 2002) 33 Biotechnology (General), (Revised June 2002) 29 Congresses 28 BOOK REVIEW 26 History 25 Genetically engineered organisms 24 Plants 24 DEBATE; 22 Plant breeding 21 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 21 Agronomy 19 Plant Production 19 Plant diseases 19 Transgenic plants 19 Genetic engineering 18 Plant Pests, (New March 2000) 18 Plant Physiology and Biochemistry 17 Agricultural Economics 16 Horticultural Crops, (New March 2000) 16 Plant pests 16 Crop Produce 15 Field Crops, (New March 2000) 15 Soil Water Management (Irrigation and Drainage), (Revised June 2002) 15 Taxonomy and Evolution 15 Animal Genetics and Breeding, (New March 2000) 14 Genetics 14 Plant pathogens 13