Paper · 1972 · Journal of the American Society for Horticultural Science

Response of Peaches to Succinic Acid-2,2-Dimethylhydrazide as an Aid in Mechanical Harvesting1,2

C. E. Gambrell; E. T. Sims; G. E. Stembridge; et al.

12
claims
24
verbatim quotes
4
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract SADH, applied as postbloom sprays to 9 peach cultivars in a series of experiments from 1964 to 1969, accelerated maturation and reduced the number of pickings required for most cultivars. Although SADH did not affect the number of fruits per tree, yield, or fruit size, it advanced the maturity date of ‘Ranger’ as much as a week; that of ‘Blake’ 4 days. ‘Cardinal’, an early cultivar, was not noticeably affected by SADH applied at different stages of development. SADH caused fruit to abscise more readily from the stem and left less fruit remaining on the trees when harvested mechanically. SADH had no detrimental influence on ‘Redglobe’ peaches stored at 50°F for 3 weeks. These effects support the feasibility of using SADH as an aid in mechanically harvesting freestone peaches intended for fresh market.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 12

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SADH accelerated maturation in most peach cultivars.

Taxon
PeachesPrunus persicat0
Treatment
SADHe0
Outcome
maturatione0
Direction
acceleratede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“SADH, applied as postbloom sprays to 9 peach cultivars in a series of experiments from 1964 to 1969, accelerated maturation and reduced the number of pickings required for most cultivars.”

✓ located verbatim in the source · abstract, characters 9–196 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SADH reduced required pickings for most cultivars.

Taxon
PeachesPrunus persicat0
Treatment
SADHe0
Outcome
number of pickings requirede0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“SADH, applied as postbloom sprays to 9 peach cultivars in a series of experiments from 1964 to 1969, accelerated maturation and reduced the number of pickings required for most cultivars.”

✓ located verbatim in the source · abstract, characters 9–196 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

SADH did not affect fruit number per tree.

Taxon
PeachesPrunus persicat0
Treatment
SADHe0
Outcome
number of fruits per treee0
Direction
did not affecte0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“SADH did not affect the number of fruits per tree, yield, or fruit size”

✓ located verbatim in the source · abstract, characters 206–277 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

SADH did not affect peach yield.

Taxon
PeachesPrunus persicat0
Treatment
SADHe0
Outcome
yielde0
Direction
did not affecte0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“SADH did not affect the number of fruits per tree, yield, or fruit size”

✓ located verbatim in the source · abstract, characters 206–277 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

SADH did not affect fruit size.

Taxon
PeachesPrunus persicat0
Treatment
SADHe0
Outcome
fruit sizee0
Direction
did not affecte0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“SADH did not affect the number of fruits per tree, yield, or fruit size”

✓ located verbatim in the source · abstract, characters 206–277 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SADH advanced Ranger maturity by as much as a week.

Taxon
PeachesPrunus persicat0
Material
‘Ranger’e0
Outcome
maturity datee0
Direction
advancede0
Value
a weeke0

Not reportedTreatmentComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“it advanced the maturity date of ‘Ranger’ as much as a week”

✓ located verbatim in the source · abstract, characters 279–338 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SADH advanced Blake maturity by four days.

Taxon
PeachesPrunus persicat0
Material
‘Blake’e0
Outcome
thate0
Value
4 dayse0

Not reportedTreatmentComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“that of ‘Blake’ 4 days”

✓ located verbatim in the source · abstract, characters 340–362 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Cardinal did not noticeably respond to SADH across application stages.

Taxon
PeachesPrunus persicat0
Material
‘Cardinal’e0
Treatment
SADHe0
Outcome
was not noticeably affectede0
Direction
not noticeably affectede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“‘Cardinal’, an early cultivar, was not noticeably affected by SADH applied at different stages of development.”

✓ located verbatim in the source · abstract, characters 364–474 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SADH made fruit abscise more readily from stems.

Taxon
PeachesPrunus persicat0
Treatment
SADHe0
Outcome
fruit to abscisee0
Direction
more readilye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“SADH caused fruit to abscise more readily from the stem”

✓ located verbatim in the source · abstract, characters 475–530 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SADH left less fruit on trees after mechanical harvesting.

Taxon
PeachesPrunus persicat0
Outcome
fruit remaining on the treese0
Direction
lesse0

Not reportedTreatmentComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“left less fruit remaining on the trees when harvested mechanically”

✓ located verbatim in the source · abstract, characters 535–601 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

SADH caused no detrimental influence on stored Redglobe peaches.

Taxon
PeachesPrunus persicat0
Material
‘Redglobe’e0
Treatment
SADHe0
Outcome
no detrimental influencee0
Direction
no detrimental influencee0
Qualifier
stored at 50°F for 3 weekse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“SADH had no detrimental influence on ‘Redglobe’ peaches stored at 50°F for 3 weeks.”

✓ located verbatim in the source · abstract, characters 603–686 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors conclude SADH is feasible as an aid to mechanical harvest of freestone peaches for fresh market.

Taxon
PeachesPrunus persicat0
Outcome
using SADH as an aid in mechanically harvesting freestone peachese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“These effects support the feasibility of using SADH as an aid in mechanically harvesting freestone peaches intended for fresh market.”

✓ located verbatim in the source · abstract, characters 687–820 · show in text ↑
t0

“Peaches”

✓ located verbatim in the source · title, characters 12–19 · show in text ↑

Daminozide · phenology · Prunus persica (peach)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

4 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
  3. positive

2 papers more in this group

See all 6 papers →

Daminozide · yield · Prunus persica (peach)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. no effect
See all 2 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.