Quality: general · Lactuca sativa (garden lettuce)

1. sodium hypochloritePositive and negative results3 papers: 1 positive, 2 negative or no effect
2. Gibberellic acidResults agree3 papers: 3 positive, 0 negative or no effect
3. Salvia rosmarinusResults agree2 papers: 0 positive, 2 negative or no effect
4. carbon monoxideResults agree2 papers: 2 positive, 0 negative or no effect
5. gamma-aminobutyric acidResults agree2 papers: 2 positive, 0 negative or no effect
6. glycine betaineResults agree2 papers: 2 positive, 0 negative or no effect
7. melatoninResults agree2 papers: 2 positive, 0 negative or no effect
8. organic acidResults agree2 papers: 2 positive, 0 negative or no effect
9. polyphenolResults agree2 papers: 2 positive, 0 negative or no effect
10. fertilizationPositive and negative results36 papers: 27 positive, 9 negative or no effect
11. lightPositive and negative results13 papers: 10 positive, 3 negative or no effect
12. storagePositive and negative results12 papers: 8 positive, 4 negative or no effect
13. botanicalPositive and negative results10 papers: 7 positive, 3 negative or no effect
14. nitrogenPositive and negative results9 papers: 7 positive, 2 negative or no effect
15. processingPositive and negative results7 papers: 3 positive, 4 negative or no effect
16. growing mediumPositive and negative results6 papers: 4 positive, 2 negative or no effect
17. inoculationPositive and negative results6 papers: 4 positive, 2 negative or no effect
18. irrigationPositive and negative results6 papers: 3 positive, 3 negative or no effect
19. phosphorusPositive and negative results4 papers: 2 positive, 2 negative or no effect
20. cultivation systemPositive and negative results3 papers: 2 positive, 1 negative or no effect
21. heatPositive and negative results3 papers: 2 positive, 1 negative or no effect
22. solarizationPositive and negative results3 papers: 1 positive, 2 negative or no effect
23. uvPositive and negative results3 papers: 2 positive, 1 negative or no effect
24. insecticidePositive and negative results2 papers: 1 positive, 1 negative or no effect
25. mulchingPositive and negative results2 papers: 1 positive, 1 negative or no effect
26. ozonePositive and negative results2 papers: 1 positive, 1 negative or no effect
27. radiationPositive and negative results2 papers: 1 positive, 1 negative or no effect
28. otherResults agree9 papers: 9 positive, 0 negative or no effect
29. applicationResults agree7 papers: 7 positive, 0 negative or no effect
30. salinityResults agree5 papers: 0 positive, 5 negative or no effect
31. biocharResults agree4 papers: 4 positive, 0 negative or no effect
32. co2Results agree4 papers: 4 positive, 0 negative or no effect
33. nanoparticleResults agree4 papers: 4 positive, 0 negative or no effect
34. coldResults agree3 papers: 3 positive, 0 negative or no effect
35. micronutrientResults agree2 papers: 0 positive, 2 negative or no effect
36. potassiumResults agree2 papers: 0 positive, 2 negative or no effect
37. stageResults 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.