Earth & Environmental Sciences
nodulation
100%
alfalfa
76%
antibiotics
60%
planting
35%
pathogen
22%
seed
21%
assay
20%
plant disease
18%
rhizobacterium
16%
defoliation
16%
biological control
16%
symbiont
14%
effect
14%
seedling
12%
spore
12%
fold
8%
scanning electron microscopy
8%
test
4%
Agriculture & Biology
leaf spot
68%
nodulation
64%
Streptomyces
63%
alfalfa
56%
antibiotics
46%
Phoma medicaginis
35%
Ensifer meliloti
19%
planting
9%
leaves
5%
root nodules
4%
plant diseases and disorders
4%
assays
4%
growth chambers
4%
defoliation
4%
seeds
4%
Medicago sativa
4%
Rhizobium
4%
symbionts
4%
plant pathogens
3%
biological control
3%
signs and symptoms (plants)
3%
spores
3%
scanning electron microscopy
3%
seedlings
2%
pathogens
2%
testing
1%
Medicine & Life Sciences
Medicago sativa
96%
Streptomyces
75%
Anti-Bacterial Agents
40%
Sinorhizobium meliloti
31%
Growth
12%
Seeds
10%
Plant Diseases
8%
Seedlings
7%
Rhizobium
7%
Spores
5%
Electron Scanning Microscopy
4%
In Vitro Techniques
4%
Weights and Measures
3%