- lightPositive and negative results19 papers: 15 positive, 4 negative or no effect
- coldPositive and negative results17 papers: 12 positive, 5 negative or no effect
- overexpressionPositive and negative results16 papers: 7 positive, 9 negative or no effect
- transgenicPositive and negative results15 papers: 10 positive, 5 negative or no effect
- infectionPositive and negative results13 papers: 7 positive, 6 negative or no effect
- salinityPositive and negative results10 papers: 5 positive, 5 negative or no effect
- co2Positive and negative results9 papers: 5 positive, 4 negative or no effect
- droughtPositive and negative results9 papers: 5 positive, 4 negative or no effect
- nitrogenPositive and negative results9 papers: 3 positive, 6 negative or no effect
- classPositive and negative results8 papers: 5 positive, 3 negative or no effect
- heatPositive and negative results8 papers: 3 positive, 5 negative or no effect
- inoculationPositive and negative results8 papers: 6 positive, 2 negative or no effect
- uvPositive and negative results8 papers: 6 positive, 2 negative or no effect
- phosphorusPositive and negative results7 papers: 1 positive, 6 negative or no effect
- in vitroPositive and negative results5 papers: 2 positive, 3 negative or no effect
- climate sitePositive and negative results4 papers: 1 positive, 3 negative or no effect
- mechanicalPositive and negative results4 papers: 2 positive, 2 negative or no effect
- phPositive and negative results4 papers: 1 positive, 3 negative or no effect
- resistance inducerPositive and negative results4 papers: 1 positive, 3 negative or no effect
- botanicalPositive and negative results3 papers: 2 positive, 1 negative or no effect
- rewateringPositive and negative results3 papers: 2 positive, 1 negative or no effect
- humidityPositive and negative results2 papers: 1 positive, 1 negative or no effect
- pathogen productPositive and negative results2 papers: 1 positive, 1 negative or no effect
- radiationPositive and negative results2 papers: 1 positive, 1 negative or no effect
- heavy metalResults agree3 papers: 0 positive, 3 negative or no effect
- ozoneResults agree3 papers: 3 positive, 0 negative or no effect
- nanoparticleResults agree2 papers: 2 positive, 0 negative or no effect
- oxidativeResults agree2 papers: 0 positive, 2 negative or no effect
- seed treatmentResults agree2 papers: 2 positive, 0 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.