- Gibberellic acidPositive and negative results5 papers: 4 positive, 1 negative or no effect
- sulfur atomPositive and negative results4 papers: 3 positive, 1 negative or no effect
- chitosanResults agree4 papers: 4 positive, 0 negative or no effect
- silicate(4-)Results agree3 papers: 3 positive, 0 negative or no effect
- acetic acidResults agree2 papers: 2 positive, 0 negative or no effect
- ascorbic acidResults agree2 papers: 2 positive, 0 negative or no effect
- boraxResults agree2 papers: 2 positive, 0 negative or no effect
- boron atomResults agree2 papers: 2 positive, 0 negative or no effect
- poly(propylene)Results agree2 papers: 2 positive, 0 negative or no effect
- zinc atomResults agree2 papers: 2 positive, 0 negative or no effect
- applicationPositive and negative results18 papers: 17 positive, 1 negative or no effect
- processingPositive and negative results13 papers: 12 positive, 1 negative or no effect
- radiationPositive and negative results11 papers: 9 positive, 2 negative or no effect
- fertilizationPositive and negative results10 papers: 9 positive, 1 negative or no effect
- coldPositive and negative results9 papers: 7 positive, 2 negative or no effect
- potassiumPositive and negative results8 papers: 7 positive, 1 negative or no effect
- heatPositive and negative results7 papers: 4 positive, 3 negative or no effect
- irrigationPositive and negative results6 papers: 5 positive, 1 negative or no effect
- otherPositive and negative results6 papers: 5 positive, 1 negative or no effect
- mulchingPositive and negative results3 papers: 2 positive, 1 negative or no effect
- phosphorusPositive and negative results3 papers: 2 positive, 1 negative or no effect
- in vitroPositive and negative results2 papers: 1 positive, 1 negative or no effect
- storageResults agree7 papers: 7 positive, 0 negative or no effect
- nanoparticleResults agree6 papers: 6 positive, 0 negative or no effect
- nitrogenResults agree6 papers: 6 positive, 0 negative or no effect
- soil waterResults agree5 papers: 5 positive, 0 negative or no effect
- sowing timeResults agree4 papers: 4 positive, 0 negative or no effect
- densityResults agree3 papers: 3 positive, 0 negative or no effect
- botanicalResults agree2 papers: 2 positive, 0 negative or no effect
- humidityResults agree2 papers: 2 positive, 0 negative or no effect
- tillageResults 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.