- Agriculture 212
- Plant Sciences 212
- Plant Physiology 92
- Ecology 88
- Tree Biology 58
- Soil Science & Conservation 54
- Plant Anatomy/Development 39
- Forestry 26
- Plant Pathology 24
- Plant Genetics and Genomics 19
- Life Sciences, general 12
- Plant Breeding/Biotechnology 12
- Cell Biology 9
- Environment, general 8
- Plant Systematics/Taxonomy/Biogeography 6
- Entomology 5
- Bioinformatics 4
- Biotechnology 4
- Microbiology 4
- Plant Biochemistry 4