Abstract
Yield of tomato (Solanum lycopersicum L.) is affected by high day and night temperature and high humidity which can occur together. Plant growth regulators may minimize adverse environmental effects to increase tomato yield. A field experiment was conducted in 2015 and 2016 to evaluate effects of foliar-applied plant growth regulators gibberellic acid (GA3) and 4-chloro phenoxy acetic acid (4-CPA) on growth, yield, and quality of tomato subjected to high day and night temperature (around 30°C) and high humidity, avg. 83%. Concentrations of GA3 were 0, 25, 50, 100 or 125 mg GA3∙L−1, and concentrations of 4-CPA were 0 or 20 mg 4-CPA∙L−1. Gibberellic acid was applied alone during pre-anthesis at 30 days after transplanting; 4-CPA was applied at anthesis and a second dose 7 days later. Application of 50 mg GA3∙L−1and 20 mg 4-CPA∙L−1 produced the heaviest individual fruit (76.2 g) and greatest yield (46.1 t∙ha−1) with higher total soluble solids (4.48 °Brix) and vitamin C (31.6 mg/100 g). Combined application of 50 mg GA3∙L−1 and 20 mg 4-CPA.L−1 was economical and could be applied under high temperature and humidity to increase quantity and quality of tomato fruit.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Combined 50 mg GA3 and 20 mg 4-CPA produced the heaviest tomato fruit at 76.2 g.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- 50 mg GA3∙L−1and 20 mg 4-CPA∙L−1e0
- Outcome
- individual fruite0
- Direction
- heavieste0
- Value
- 76.2 ge0
- Comparator
- 0e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 50 mg GA3∙L−1and 20 mg 4-CPA∙L−1 produced the heaviest individual fruit (76.2 g)”
e1“tomato (Solanum lycopersicum L.)”
e2“Concentrations of GA3 were 0, 25, 50, 100 or 125 mg GA3∙L−1, and concentrations of 4-CPA were 0 or 20 mg 4-CPA∙L−1.”
Claim · model-written summary
Combined 50 mg GA3 and 20 mg 4-CPA produced the greatest tomato yield at 46.1 t per hectare.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 50 mg GA3∙L−1and 20 mg 4-CPA∙L−1e0
- Outcome
- yielde0
- Direction
- greateste0
- Value
- 46.1 t∙ha−1e0
- Comparator
- 0e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 50 mg GA3∙L−1and 20 mg 4-CPA∙L−1 produced the heaviest individual fruit (76.2 g) and greatest yield (46.1 t∙ha−1)”
e1“tomato (Solanum lycopersicum L.)”
e2“Concentrations of GA3 were 0, 25, 50, 100 or 125 mg GA3∙L−1, and concentrations of 4-CPA were 0 or 20 mg 4-CPA∙L−1.”
Claim · model-written summary
Combined 50 mg GA3 and 20 mg 4-CPA gave higher tomato total soluble solids at 4.48 °Brix.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 50 mg GA3∙L−1and 20 mg 4-CPA∙L−1e0
- Outcome
- total soluble solidse0
- Direction
- highere0
- Value
- 4.48 °Brixe0
- Comparator
- 0e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 50 mg GA3∙L−1and 20 mg 4-CPA∙L−1 produced the heaviest individual fruit (76.2 g) and greatest yield (46.1 t∙ha−1) with higher total soluble solids (4.48 °Brix)”
e1“tomato (Solanum lycopersicum L.)”
e2“Concentrations of GA3 were 0, 25, 50, 100 or 125 mg GA3∙L−1, and concentrations of 4-CPA were 0 or 20 mg 4-CPA∙L−1.”
Claim · model-written summary
Combined 50 mg GA3 and 20 mg 4-CPA gave tomato fruit vitamin C of 31.6 mg per 100 g.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 50 mg GA3∙L−1and 20 mg 4-CPA∙L−1e0
- Outcome
- vitamin Ce0
- Value
- 31.6 mg/100 ge0
- Comparator
- 0e2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 50 mg GA3∙L−1and 20 mg 4-CPA∙L−1 produced the heaviest individual fruit (76.2 g) and greatest yield (46.1 t∙ha−1) with higher total soluble solids (4.48 °Brix) and vitamin C (31.6 mg/100 g).”
e1“tomato (Solanum lycopersicum L.)”
e2“Concentrations of GA3 were 0, 25, 50, 100 or 125 mg GA3∙L−1, and concentrations of 4-CPA were 0 or 20 mg 4-CPA∙L−1.”
Claim · model-written summary
The authors recommend the combined 50 mg GA3 and 20 mg 4-CPA treatment as economical under high temperature and humidity.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- 50 mg GA3∙L−1 and 20 mg 4-CPA.L−1e0
- Outcome
- could be applied under high temperature and humidity to increase quantity and quality of tomato fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined application of 50 mg GA3∙L−1 and 20 mg 4-CPA.L−1 was economical and could be applied under high temperature and humidity to increase quantity and quality of tomato fruit.”
The same questions in other papers
Gibberellic acid · yield · Solanum lycopersicum (tomato)Results differ
50 papers in the same direction as this paper · 5 in the opposite direction
- negative
- no effect
- no effect
52 papers more in this group
See all 56 papers →Gibberellic acid · quality: phytochemicals · Solanum lycopersicum (tomato)Results agree
11 papers in the same direction as this paper
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →Gibberellic acid · quality: sugar starch · Solanum lycopersicum (tomato)Results agree
14 papers in the same direction as this paper
- positive
- positive
- positive
11 papers more in this group
See all 15 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.