Abstract
SummaryDifferent concentrations of aminoethoxyvinylglycine (AVG) and gibberellic acid (GA3) and their combinations, applied at two stages of fruit growth, were evaluated for prolonging the marketing season of `Feicheng' peaches. GA3 applied at the end of pit hardening, or AVG applied two weeks before commercial harvest, inhibited fruit maturation on the tree, delayed harvest and reduced flesh browning after cold storage in a concentration-dependent manner. A synergistic effect was found when both GA3 and AVG were used, with the combination of 100 or 150.mg l±1 GA3, applied at the end of pit hardening, and 100 mg l±1 AVG, applied two weeks before harvest giving the best results. These combinations retarded the change in ground colour, loss of firmness, and reduction in acidity by 2±3 weeks. Since harvest was prolonged by 2±3 weeks, soluble solids content (SSC) in fruit increased compared with the control (harvested earlier). Fruit size was significantly greater on treated trees compared with the controls when fruit set was controlled to the same level by hand thinning. After four weeks of storage and 4.d at 208C, 83% of control fruit developed tissue browning, but only 5% of AVG + GA3-treated fruit developed browning after six weeks of storage and 4 d at 208C. Thus, the marketing season of `Feicheng' peaches was prolonged by at least four weeks by 100 or 150 mg l±1 of GA3 and 100 mg l±1 of AVG. Fruit treated with 150 mg l±1 GA3 plus 100 to 150 mg l±1 AVG showed similar results but failed to ripen properly after cold storage.
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Claims 9
Claim · model-written summary
GA3 at pit hardening inhibited on-tree maturation, delayed harvest and reduced post-storage browning.
- Taxon
- peaches
Prunus persicat0 - Treatment
- GA3 applied at the end of pit hardeninge0
- Outcome
- fruit maturation on the tree, delayed harvest and reduced flesh browning after cold storagee0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 applied at the end of pit hardening, or AVG applied two weeks before commercial harvest, inhibited fruit maturation on the tree, delayed harvest and reduced flesh browning after cold storage in a concentration-dependent manner”
t0“`Feicheng' peaches”
Claim · model-written summary
AVG before harvest inhibited on-tree maturation, delayed harvest and reduced post-storage browning.
- Taxon
- peachesPrunus persicat0
- Treatment
- AVG applied two weeks before commercial harveste0
- Outcome
- fruit maturation on the tree, delayed harvest and reduced flesh browning after cold storagee0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 applied at the end of pit hardening, or AVG applied two weeks before commercial harvest, inhibited fruit maturation on the tree, delayed harvest and reduced flesh browning after cold storage in a concentration-dependent manner”
t0“`Feicheng' peaches”
Claim · model-written summary
Combining GA3 and AVG had a synergistic effect, with specified doses giving best results.
- Taxon
- peachesPrunus persicat0
- Treatment
- 100 or 150.mg l±1 GA3e0
- Outcome
- synergistic effecte0
- Direction
- best resultse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A synergistic effect was found when both GA3 and AVG were used, with the combination of 100 or 150.mg l±1 GA3, applied at the end of pit hardening, and 100 mg l±1 AVG, applied two weeks before harvest giving the best results”
t0“`Feicheng' peaches”
Claim · model-written summary
The combinations delayed ground-colour change, firmness loss and acidity reduction by 2±3 weeks.
- Taxon
- peachesPrunus persicat0
- Treatment
- combinationse0
- Outcome
- change in ground colour, loss of firmness, and reduction in aciditye0
- Direction
- retardede0
- Value
- 2±3 weekse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These combinations retarded the change in ground colour, loss of firmness, and reduction in acidity by 2±3 weeks”
t0“`Feicheng' peaches”
Claim · model-written summary
Prolonged harvest increased soluble solids relative to earlier-harvested control fruit.
- Taxon
- peachesPrunus persicat0
- Treatment
- harvest was prolonged by 2±3 weekse0
- Outcome
- soluble solids content (SSC)e0
- Direction
- increasede0
- Comparator
- control (harvested earlier)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Since harvest was prolonged by 2±3 weeks, soluble solids content (SSC) in fruit increased compared with the control (harvested earlier)”
t0“`Feicheng' peaches”
Claim · model-written summary
Fruit size was significantly greater on treated peach trees at equal fruit set.
- Taxon
- peachesPrunus persicat0
- Treatment
- treated treese0
- Outcome
- Fruit sizee0
- Direction
- greatere0
- Qualifier
- fruit set was controlled to the same level by hand thinninge0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit size was significantly greater on treated trees compared with the controls when fruit set was controlled to the same level by hand thinning”
t0“`Feicheng' peaches”
Claim · model-written summary
Only 5% of treated peach fruit browned after six weeks of storage and four days at 208C, versus 83% of controls after four weeks and four days.
- Taxon
- peachesPrunus persicat0
- Treatment
- AVG + GA3-treatede0
- Outcome
- tissue browninge0
- Direction
- onlye0
- Value
- 5%e0
- Qualifier
- 83%e0
- Comparator
- control fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After four weeks of storage and 4.d at 208C, 83% of control fruit developed tissue browning, but only 5% of AVG + GA3-treated fruit developed browning after six weeks of storage and 4 d at 208C”
t0“`Feicheng' peaches”
Claim · model-written summary
GA3 plus AVG prolonged the peach marketing season by at least four weeks.
- Taxon
- peachesPrunus persicae0
- Treatment
- 100 or 150 mg l±1 of GA3 and 100 mg l±1 of AVGe0
- Outcome
- marketing seasone0
- Direction
- prolongede0
- Value
- at least four weekse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the marketing season of `Feicheng' peaches was prolonged by at least four weeks by 100 or 150 mg l±1 of GA3 and 100 mg l±1 of AVG”
Claim · model-written summary
Fruit given 150 mg l±1 GA3 plus 100 to 150 mg l±1 AVG failed to ripen properly after cold storage.
- Taxon
- peachesPrunus persicat0
- Treatment
- 150 mg l±1 GA3 plus 100 to 150 mg l±1 AVGe0
- Outcome
- failed to ripen properly after cold storagee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit treated with 150 mg l±1 GA3 plus 100 to 150 mg l±1 AVG showed similar results but failed to ripen properly after cold storage”
t0“`Feicheng' peaches”
The same questions in other papers
Gibberellic acid · disease · Prunus persica (peach)Positive and negative results
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- negative
- positive
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3 papers more in this group
See all 7 papers →in vitro · disease · Prunus persica (peach)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
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.