- Agriculture 35
- Plant Sciences 27
- Plant Physiology 24
- Plant Biochemistry 22
- Plant Anatomy/Development 18
- Plant Breeding/Biotechnology 14
- Plant Genetics and Genomics 14
- Characterization and Evaluation of Materials 13
- Biotechnology 10
- Engineering Design 9
- Plant Pathology 9
- Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution 9
- Soil Science & Conservation 8
- Quality Control, Reliability, Safety and Risk 7
- Tribology, Corrosion and Coatings 7
- Cell Biology 6
- Ecotoxicology 6
- Environmental Chemistry 6
- Nanotechnology 6
- Plant Systematics/Taxonomy/Biogeography 6