Abstract
The growth regulator hydrogen cyanamide (Dormex, 50% a.i.) was tested for its effectiveness in promoting earlier and more even budbreak, flowering, and fruit maturity of the low chill peach cv. Flordaprince at 2 sites in subtropical Australia. The influence of the growth retardant paclobutrazol was also tested at 1 site, and at the other, the effect of altering pruning date. At 1 site only, hydrogen cyanamide applied early-mid June, during endodormancy, advanced mean harvest time by 10 days. At the other site, there were no consistent trends between harvest time and date of application of cyanamide. Dormex at the lowest concentration applied (10 mL/L) caused severe yield reductions (40.8%). Flowering and fruit maturity were advanced by about 6 days with dormant pruning in early winter, compared with pruning at later dates, and by 13 days with the application of the growth retardant paclobutrazol, compared with no application.
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Claims 7
Claim · model-written summary
Early to mid June hydrogen cyanamide advanced peach mean harvest time by 10 days at one site.
- Taxon
- peach
Prunus persicat0 - Treatment
- hydrogen cyanamide applied early-mid Junee0
- Outcome
- mean harvest timee0
- Direction
- advancede0
- Value
- 10 dayse0
- Qualifier
- during endodormancye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach cultivar Flordaprince”
e0“hydrogen cyanamide applied early-mid June, during endodormancy, advanced mean harvest time by 10 days”
Claim · model-written summary
At the other site, harvest time showed no consistent trend with cyanamide application date.
- Taxon
- peachPrunus persicat0
- Treatment
- cyanamidee0
- Outcome
- harvest timee0
- Direction
- no consistent trendse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach cultivar Flordaprince”
e0“there were no consistent trends between harvest time and date of application of cyanamide”
Claim · model-written summary
Dormex at 10 mL/L reduced peach yield by 40.8%.
- Taxon
- peachPrunus persicat0
- Treatment
- Dormex at the lowest concentration applied (10 mL/L)e0
- Outcome
- yielde0
- Direction
- reductionse0
- Value
- 40.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach cultivar Flordaprince”
e0“Dormex at the lowest concentration applied (10 mL/L) caused severe yield reductions (40.8%)”
Claim · model-written summary
Early winter dormant pruning advanced peach flowering by about 6 days relative to later pruning.
- Taxon
- peachPrunus persicat0
- Treatment
- dormant pruning in early wintere0
- Outcome
- Floweringe0
- Direction
- advancede0
- Value
- about 6 dayse0
- Comparator
- pruning at later datese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach cultivar Flordaprince”
e0“Flowering and fruit maturity were advanced by about 6 days with dormant pruning in early winter, compared with pruning at later dates”
Claim · model-written summary
Early winter dormant pruning advanced peach fruit maturity by about 6 days relative to later pruning.
- Taxon
- peachPrunus persicat0
- Treatment
- dormant pruning in early wintere0
- Outcome
- fruit maturitye0
- Direction
- advancede0
- Value
- about 6 dayse0
- Comparator
- pruning at later datese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach cultivar Flordaprince”
e0“Flowering and fruit maturity were advanced by about 6 days with dormant pruning in early winter, compared with pruning at later dates”
Claim · model-written summary
Paclobutrazol advanced peach flowering by 13 days relative to no application.
- Taxon
- peachPrunus persicat0
- Treatment
- paclobutrazole0
- Outcome
- Floweringe0
- Direction
- advancede0
- Value
- 13 dayse0
- Comparator
- no applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach cultivar Flordaprince”
e0“Flowering and fruit maturity were advanced by about 6 days with dormant pruning in early winter, compared with pruning at later dates, and by 13 days with the application of the growth retardant paclobutrazol, compared with no application”
Claim · model-written summary
Paclobutrazol advanced peach fruit maturity by 13 days relative to no application.
- Taxon
- peachPrunus persicat0
- Treatment
- paclobutrazole0
- Outcome
- fruit maturitye0
- Direction
- advancede0
- Value
- 13 dayse0
- Comparator
- no applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peach cultivar Flordaprince”
e0“Flowering and fruit maturity were advanced by about 6 days with dormant pruning in early winter, compared with pruning at later dates, and by 13 days with the application of the growth retardant paclobutrazol, compared with no application”
The same questions in other papers
cyanamide · yield · Prunus persica (peach)Results differ
7 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
6 papers more in this group
See all 10 papers →paclobutrazol · phenology · Prunus persica (peach)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →pruning · phenology · Prunus persica (peach)Positive and negative results
10 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
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.