Sinorhizobium meliloti · Medicago sativa (alfalfa)

1. nodulation factorPositive and negative results4 papers: 3 positive, 1 negative or no effect
2. N-acetylglucosaminePositive and negative results2 papers: 1 positive, 1 negative or no effect
3. calcium atomPositive and negative results2 papers: 1 positive, 1 negative or no effect
4. biotinResults agree2 papers: 2 positive, 0 negative or no effect
5. methionineResults agree2 papers: 2 positive, 0 negative or no effect
6. sodium chlorideResults agree2 papers: 2 positive, 0 negative or no effect
7. inoculationPositive and negative results37 papers: 30 positive, 7 negative or no effect
8. loss of functionPositive and negative results23 papers: 2 positive, 21 negative or no effect
9. phPositive and negative results5 papers: 2 positive, 3 negative or no effect
10. nitrogenPositive and negative results4 papers: 2 positive, 2 negative or no effect
11. allelopathyPositive and negative results3 papers: 1 positive, 2 negative or no effect
12. salinityPositive and negative results3 papers: 1 positive, 2 negative or no effect
13. nanoparticlePositive and negative results2 papers: 1 positive, 1 negative or no effect
14. droughtResults agree2 papers: 0 positive, 2 negative or no effect
15. storageResults agree2 papers: 0 positive, 2 negative or no effect

Claims are grouped by organism, treatment and what was measured or targeted. Claims that compare genotypes are left out; a claim about lacking a nutrient counts the other way round in that nutrient’s question. “Results differ” marks a question where two model reviewers, reading both claims, accepted at least one pair of papers whose results differ.