Claim · model-written summary
Tree thinning reduced orchard coverage from 100% to 75.94-80.51%.
- Taxon
- Walnutt1
- Treatment
- Tree Thinningt0
- Outcome
- orchard coveragee0
- Direction
- decreasede0
- Value
- 75.94–80.51%e0
- Comparator
- an unthinned control (CK)e1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Verbatim
t1“Walnut Orchards”
e0“orchard coverage decreased from 100% to 75.94–80.51%”
t0“Tree Thinning”
e1“an unthinned control (CK)”
Title
Impacts of Tree Thinning on Overall Productivity in Densely Planted Walnut Orchards
Qian Ye; Qinyang Yue; Yingxia Zhang; et al. Horticulturae 2025. doi:10.3390/horticulturae11101216
Other claims from this paper (19)
- Intervention effect Tree thinning expanded crown width by 6.22-6.76 m.
- Intervention effect Tree thinning increased light transmittance to 27.74-33.64%.
- Intervention effect Tree thinning raised inter-row temperature by 2.34-4.08 degrees C.
- Intervention effect Tree thinning raised light intensity by 5.38-25.29%.
- Intervention effect Tree thinning lowered relative humidity by 2.15-3.30%.
- Intervention effect In the T2 treatment, chlorophyll content in outer-canopy leaves increased by 15.23% at the kernel-hardening stage.
- Intervention effect In the T2 treatment, chlorophyll content in outer-canopy leaves increased by 12.45% at the maturity stage.
- Intervention effect Thinning increased the leaf carbon-to-nitrogen ratio by 18.67%.
- Intervention effect Thinning increased net photosynthetic rate during fruit expansion by 34.21-46.10%.
- Intervention effect Thinning decreased intercellular CO2 concentration by 10.18-10.31%.
- Intervention effect Thinning increased single fruit weight by 23.39-37.94%.
- Intervention effect Thinning increased kernel weight by 26.79-41.13%.
- Intervention effect Thinning increased total sugar content in inner-canopy fruits by 16.50-16.67%.
- Intervention effect Thinning increased protein and fat content in outer-canopy fruits by 0.69-12.50% and 0.60-2.18%, respectively.
- Intervention effect After 2 years of thinning (T2) yield reached 5.26 t/ha, 20.38% higher than the control.
- Observation Yield followed a short-term adjustment and long-term gain pattern under thinning.
- Intervention effect Thinning lowered the rates of diseased fruit and empty shells by 65.71% and 93.22%, respectively.
- Intervention effect Under thinning the premium fruit rate reached 90.60%.
- Recommendation The authors conclude that tree thinning is an effective measure for improving the growing environment and productivity of closed-canopy walnut orchards.