Abstract
A study was conducted to evaluate the effect of branch and tree thinning on growth, yield and fruit quality in 8-year-old non-astringent persimmon (Diospyros kaki L.f.) trees in a high-density orchard over 6 years in Korea. Adjacent trees in the rows were removed in 2008 (first-year thinning) or in 2010 (gradual thinning). Trees in the second treatment also had 25% of the main scaffold branches removed in the first two seasons. Control plots were left unthinned. First-year thinning elevated leaf macro-nutrient concentrations, increased the production of short fruiting shoots (less than 20 cm) per tree, decreased water sprout development and weight of pruned biomass, and increased fruit set compared with values recorded on control trees and with gradual thinning. First-year thinning gave higher photosynthetic photon flux in the centre of the canopy and better fruit quality. There were generally only small differences in total yield across the three treatments in individual years, but much higher total marketable yield from 2010 to 2013 in the first-year thinning plots. First-year thinning improved overall tree productivity, and the gross returns were 80% higher than those of control from 2008 to 2013 when the extra cost of the thinning was taken into account.
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Claims 11
Claim · model-written summary
First-year thinning elevated leaf macro-nutrient concentrations relative to control trees and gradual thinning.
- Treatment
- First-year thinninge0
- Outcome
- leaf macro-nutrient concentrationse0
- Direction
- elevatede0
- Comparator
- control trees and with gradual thinninge0
DiospyrosOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First-year thinning elevated leaf macro-nutrient concentrations, increased the production of short fruiting shoots (less than 20 cm) per tree, decreased water sprout development and weight of pruned biomass, and increased fruit set compared with values recorded on control trees and with gradual thinning.”
t0“persimmon trees”
Claim · model-written summary
First-year thinning increased production of short fruiting shoots (less than 20 cm) per tree relative to control trees and gradual thinning.
- Treatment
- First-year thinninge0
- Outcome
- production of short fruiting shoots (less than 20 cm) per treee0
- Direction
- increasede0
- Comparator
- control trees and with gradual thinninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First-year thinning elevated leaf macro-nutrient concentrations, increased the production of short fruiting shoots (less than 20 cm) per tree, decreased water sprout development and weight of pruned biomass, and increased fruit set compared with values recorded on control trees and with gradual thinning.”
t0“persimmon trees”
Claim · model-written summary
First-year thinning decreased water sprout development relative to control trees and gradual thinning.
- Treatment
- First-year thinninge0
- Outcome
- water sprout developmente0
- Direction
- decreasede0
- Comparator
- control trees and with gradual thinninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First-year thinning elevated leaf macro-nutrient concentrations, increased the production of short fruiting shoots (less than 20 cm) per tree, decreased water sprout development and weight of pruned biomass, and increased fruit set compared with values recorded on control trees and with gradual thinning.”
t0“persimmon trees”
Claim · model-written summary
First-year thinning decreased weight of pruned biomass relative to control trees and gradual thinning.
- Treatment
- First-year thinninge0
- Outcome
- weight of pruned biomasse0
- Direction
- decreasede0
- Comparator
- control trees and with gradual thinninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First-year thinning elevated leaf macro-nutrient concentrations, increased the production of short fruiting shoots (less than 20 cm) per tree, decreased water sprout development and weight of pruned biomass, and increased fruit set compared with values recorded on control trees and with gradual thinning.”
t0“persimmon trees”
Claim · model-written summary
First-year thinning increased fruit set relative to control trees and gradual thinning.
- Treatment
- First-year thinninge0
- Outcome
- fruit sete0
- Direction
- increasede0
- Comparator
- control trees and with gradual thinninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First-year thinning elevated leaf macro-nutrient concentrations, increased the production of short fruiting shoots (less than 20 cm) per tree, decreased water sprout development and weight of pruned biomass, and increased fruit set compared with values recorded on control trees and with gradual thinning.”
t0“persimmon trees”
Claim · model-written summary
First-year thinning gave higher photosynthetic photon flux in the centre of the canopy.
- Organ / stage
- centre of the canopye0
- Treatment
- First-year thinninge0
- Outcome
- photosynthetic photon fluxe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First-year thinning gave higher photosynthetic photon flux in the centre of the canopy and better fruit quality.”
t0“persimmon trees”
Claim · model-written summary
First-year thinning gave better fruit quality.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First-year thinning gave higher photosynthetic photon flux in the centre of the canopy and better fruit quality.”
t0“persimmon trees”
Claim · model-written summary
Total yield generally differed only slightly among the three treatments in individual years.
- Outcome
- total yielde0
- Direction
- small differencese0
- Qualifier
- individual yearse0
- Comparator
- three treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were generally only small differences in total yield across the three treatments in individual years, but much higher total marketable yield from 2010 to 2013 in the first-year thinning plots.”
t0“persimmon trees”
Claim · model-written summary
First-year thinning plots had much higher total marketable yield from 2010 to 2013.
- Treatment
- first-year thinninge0
- Outcome
- total marketable yielde0
- Direction
- much highere0
- Qualifier
- from 2010 to 2013e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were generally only small differences in total yield across the three treatments in individual years, but much higher total marketable yield from 2010 to 2013 in the first-year thinning plots.”
t0“persimmon trees”
Claim · model-written summary
First-year thinning improved overall tree productivity.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First-year thinning improved overall tree productivity, and the gross returns were 80% higher than those of control from 2008 to 2013 when the extra cost of the thinning was taken into account.”
t0“persimmon trees”
Claim · model-written summary
Gross returns with first-year thinning were 80% higher than control from 2008 to 2013 after accounting for thinning cost.
- Treatment
- First-year thinninge0
- Outcome
- gross returnse0
- Direction
- highere0
- Value
- 80%e0
- Qualifier
- when the extra cost of the thinning was taken into accounte0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First-year thinning improved overall tree productivity, and the gross returns were 80% higher than those of control from 2008 to 2013 when the extra cost of the thinning was taken into account.”
t0“persimmon trees”
The same questions in other papers
pruning · quality: grain · DiospyrosPositive and negative results
1 in the opposite direction
- no effect
pruning · yield · DiospyrosPositive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
2 papers more in this group
See all 6 papers →pruning · quality: postharvest · DiospyrosResults agree
1 paper in the same direction as this paper
- positive
pruning · growth · DiospyrosResults agree
2 papers in the same direction as this paper
- 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.