Abstract
Induction of parthenocarpy in Japanese cultivars of the peach was demonstrated. Among several growth regulators examined, GA3 was only effective to induce parthenocarpic fruit in Okubo cultivar, when it was applied at a concentration of 500 or 1000ppm at the balloon stage. Moreover, GA3 was effective to induce parthenocarpy in 3 of the 6 cultivars tested, but had no effect on the ramaining 3 cultivars.It was also found that the percentage of parthenocarpic fruit set increased with increase in a concentration of GA3, and higher percentages of parthenocarpic fruit set were obtained in repeated applications of GA3.No effects were obtained in the growth of parthenocarpic fruit for three concentrations of GA3 when it was applied only once at the balloon stage, but pronounced effects were found in parthenocarpic fruit growth when GA3 was applied repeatedly during the early stage of fruit growth, even if it was applied at a low concentration.Fruit quality of parthenocarpic fruit induced by GA3 was almost identical to those of pollinated fruit, although fruit size and weight were smaller than the pollinated fruit.It was also shown that non-pollinated peach fruit will continue their further growth when GA3 at a concentration of 1000ppm was applied within 30 days after emasculation, but not thereafter.Morphological observations showed that there were little or no differences in mesocarp thickness between seeded and parthenocarpic fruits, although some differences in cell number and cell size were found between them. While, tissue thickness of pits and pit cavity in the parthenocarpic fruit were smaller than those of the seeded one.
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Claims 13
Claim · model-written summary
Among several growth regulators examined, GA3 alone induced parthenocarpic fruit in the Okubo peach cultivar at 500 or 1000ppm applied at the balloon stage.
- Taxon
- Peach
Prunus persicat0 - Material
- Okubo cultivare0
- Treatment
- GA3e0
- Outcome
- induce parthenocarpic fruite0
- Qualifier
- at a concentration of 500 or 1000ppm at the balloon stagee0
- Comparator
- several growth regulators examinede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e0“Among several growth regulators examined, GA3 was only effective to induce parthenocarpic fruit in Okubo cultivar, when it was applied at a concentration of 500 or 1000ppm at the balloon stage”
Claim · model-written summary
GA3 induced parthenocarpy in 3 of the 6 peach cultivars tested.
- Taxon
- PeachPrunus persicat0
- Material
- 3 of the 6 cultivars testede1
- Treatment
- GA3e1
- Outcome
- induce parthenocarpye1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e1“GA3 was effective to induce parthenocarpy in 3 of the 6 cultivars tested, but had no effect on the ramaining 3 cultivars”
Claim · model-written summary
GA3 had no effect on parthenocarpy in the remaining 3 peach cultivars.
- Taxon
- PeachPrunus persicat0
- Material
- ramaining 3 cultivarse1
- Treatment
- GA3e1
- Outcome
- induce parthenocarpye1
- Direction
- no effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e1“GA3 was effective to induce parthenocarpy in 3 of the 6 cultivars tested, but had no effect on the ramaining 3 cultivars”
Claim · model-written summary
The percentage of parthenocarpic fruit set increased with increasing GA3 concentration.
- Taxon
- PeachPrunus persicat0
- Treatment
- concentration of GA3e2
- Outcome
- percentage of parthenocarpic fruit sete2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e2“the percentage of parthenocarpic fruit set increased with increase in a concentration of GA3”
Claim · model-written summary
Repeated applications of GA3 gave higher percentages of parthenocarpic fruit set in peach.
- Taxon
- PeachPrunus persicat0
- Treatment
- repeated applications of GA3e2
- Outcome
- percentages of parthenocarpic fruit sete2
- Direction
- highere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e2“higher percentages of parthenocarpic fruit set were obtained in repeated applications of GA3”
Claim · model-written summary
A single GA3 application at the balloon stage had no effect on growth of parthenocarpic fruit at three concentrations.
- Taxon
- PeachPrunus persicat0
- Treatment
- GA3e3
- Outcome
- growth of parthenocarpic fruite3
- Direction
- No effectse3
- Qualifier
- applied only once at the balloon stagee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e3“No effects were obtained in the growth of parthenocarpic fruit for three concentrations of GA3 when it was applied only once at the balloon stage”
Claim · model-written summary
Repeated GA3 applications early in fruit growth had pronounced effects on parthenocarpic fruit growth, even at a low concentration.
- Taxon
- PeachPrunus persicat0
- Treatment
- applied repeatedly during the early stage of fruit growthe4
- Outcome
- parthenocarpic fruit growthe4
- Direction
- pronounced effectse4
- Qualifier
- even if it was applied at a low concentratione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e4“pronounced effects were found in parthenocarpic fruit growth when GA3 was applied repeatedly during the early stage of fruit growth, even if it was applied at a low concentration”
Claim · model-written summary
Fruit quality of GA3-induced parthenocarpic peach fruit was almost identical to that of pollinated fruit.
- Taxon
- PeachPrunus persicat0
- Treatment
- GA3e5
- Outcome
- Fruit qualitye5
- Direction
- almost identicale5
- Comparator
- pollinated fruite5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e5“Fruit quality of parthenocarpic fruit induced by GA3 was almost identical to those of pollinated fruit”
Claim · model-written summary
GA3-induced parthenocarpic peach fruit was smaller in size and weight than pollinated fruit.
- Taxon
- PeachPrunus persicat0
- Treatment
- GA3e5
- Outcome
- fruit size and weighte5
- Direction
- smallere5
- Comparator
- pollinated fruite5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e5“Fruit quality of parthenocarpic fruit induced by GA3 was almost identical to those of pollinated fruit, although fruit size and weight were smaller than the pollinated fruit”
Claim · model-written summary
GA3 at 1000ppm applied within 30 days after emasculation let non-pollinated peach fruit continue further growth.
- Taxon
- peachPrunus persicae6
- Treatment
- GA3 at a concentration of 1000ppme6
- Outcome
- further growthe6
- Direction
- continuee6
- Qualifier
- within 30 days after emasculatione6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“non-pollinated peach fruit will continue their further growth when GA3 at a concentration of 1000ppm was applied within 30 days after emasculation, but not thereafter”
Claim · model-written summary
Mesocarp thickness showed little or no difference between seeded and parthenocarpic peach fruits.
- Taxon
- PeachPrunus persicat0
- Outcome
- mesocarp thicknesse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e7“there were little or no differences in mesocarp thickness between seeded and parthenocarpic fruits”
Claim · model-written summary
Cell number and cell size differed to some extent between seeded and parthenocarpic peach fruits.
- Taxon
- PeachPrunus persicat0
- Outcome
- cell number and cell sizee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e7“some differences in cell number and cell size were found between them”
Claim · model-written summary
Tissue thickness of pits and pit cavity was smaller in parthenocarpic peach fruit than in seeded fruit.
- Taxon
- PeachPrunus persicat0
- Outcome
- tissue thickness of pits and pit cavitye7
- Direction
- smallere7
- Comparator
- seeded onee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Parthenocarpic Fruit Growth and Development of the Peach as Influenced by Gibberellin Application”
e7“tissue thickness of pits and pit cavity in the parthenocarpic fruit were smaller than those of the seeded one”
The same questions in other papers
Gibberellic acid · growth · Prunus persica (peach)Results differ
18 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
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See all 23 papers →Gibberellic acid · yield · Prunus persica (peach)Positive and negative results
8 papers in the same direction as this paper · 4 in the opposite direction
- negative
- no effect
- negative
9 papers more in this group
See all 13 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.