Plants Plant Breeding and Genetics 30 Transgenic plants 22 Genetically engineered organisms 20 Genetic Engineering, Gene Transfer and Transgenics, (New June 2002) 19 Horticultural Crops, (New March 2000) 15 Plant Physiology and Biochemistry 15 more ... Field Crops, (New March 2000) 13 Trees 13 Biotechnology 11 Genetic engineering 11 Molecular Biology and Molecular Genetics, (Discontinued March 2000, Reinstated and Revised June 2002) 11 Plant Pests, (New March 2000) 11 Plant pests 11 Risk assessment 11 Woody plants 11 Crops 10 Environmental aspects 10 Forests and Forest Trees (Biology and Ecology) 10 Insects 10 Plant diseases 10 Taxonomy and Evolution 10 Insect pests 9 Pest control 9 Evolution 8 Genetic transformation 8 Plant Ecology 8 Plant pathogens 8 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 8 Agricultural Economics 7 less ...