Claim · model-written summary
GA3 reduced tomato fruit size and yield.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Gibberellin (GA3) 25 and 50ppme0
- Outcome
- fruit size and yieldse0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Gibberellin (GA3) 25 and 50ppm, whether applied to the flowers, the clusters, or a whole tomato plant reduced NO3-N concentration in the fruit, as well as fruit size and yields.”
Title
Application of Plant Growth Regulators on Fruits and Vegetables for Processing
Shinzo KUNISATO; Masanori MIYAZAKI Journal of the Japanese Society for Horticultural Science 1972. doi:10.2503/jjshs.41.411
Other claims from this paper (19)
- Intervention effect GA3 reduced tomato fruit nitrate concentration.
- Intervention effect GA3 delayed tomato maturation.
- Intervention effect Auxin treatments increased fruit nitrate concentration.
- Intervention effect Auxin treatments increased tomato fruit size and yield.
- Intervention effect Auxin treatments accelerated maturation.
- Observation PCPA was highly effective for the reported fruit responses.
- Observation TR was highly effective for the reported fruit responses.
- Observation RP was less effective for the reported fruit responses.
- Intervention effect Combined GA3 and auxin treatment gave intermediate fruit growth, yield and maturation time.
- Association Fruit nitrate concentration varied with the auxin combined with GA3.
- Intervention effect GA3 25ppm with PCPA 7.5ppm on clusters produced the heaviest yield with fruit nitrate below 3ppm.
- Association Whole-plant growth regulator effects varied by concentration and spraying time.
- Intervention effect GA3 25ppm alone decreased tomato fruit yield and nitrate.
- Intervention effect GA3+RP decreased tomato fruit yield and nitrate.
- Intervention effect RP 200ppm alone increased tomato fruit yield and nitrate, with no significant spraying-time effect.
- Observation Chico was more sensitive to growth regulators than Heinz 1370.
- Observation Fireball and Coldset had the highest fruit nitrate concentration.
- Observation Heinz 1409, ES-24, VF-36 and other late-maturing large-fruited cultivars had very low nitrate.
- Recommendation The authors judged Heinz 1409 most suitable for yield and low fruit nitrate.