Physiology: gas exchange · Olea europaea (common olive)

1. droughtPositive and negative results7 papers: 1 positive, 6 negative or no effect
2. irrigationPositive and negative results6 papers: 1 positive, 5 negative or no effect
3. salinityPositive and negative results5 papers: 1 positive, 4 negative or no effect
4. mycorrhizaPositive and negative results3 papers: 2 positive, 1 negative or no effect
5. pruningPositive and negative results2 papers: 1 positive, 1 negative or no effect
6. mulchingResults agree2 papers: 2 positive, 0 negative or no effect
7. ozoneResults 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.