Abstract
【Objective】The aim of this study was to study the effects of different thinning methods on illumination,photosynthetic,growth and fruiting in airtight apple orchard,and then provide a theoretical basis for the renovation of the old orchard.【Method】The ‘Red Fuji’ apple airtight orchard was used in this study,and three different thinning methods,were interlaced thinning(A),septum strain thinning(B),every four trees cutting one in the line(C) and the control(CK),and then the related indexes of illumination,photosynthetic,growth and fruiting were determined and analyzed.【Result】The results showed that in different treatments,except CK,despite the different levels of growth of coverage rate of crown,the a performance was in the order of CKC BA,and light transmittance and intracoronal light transmittance were ABCCK.In the growing season,in different treatments,net photosynthetic rate(Pn),carboxylation efficiency(CE) and water use efficiency(WUE) were ABCCK,while intercellular CO2concentration(CI) was the the contrary;In terms of yield,three different treatments were significantly lower than the control per hectare in the first year,but the yield recovered the next year,and in the third year A and B were significantly higher than C and CK.The colouring index,soluble sugars,titration acid and the rate of high quality fruits of different thinning methods were higher than CK,shown in detail as A and B were significantly higher than C and CK.【Conclusion】The suitable thinning methods can fundamentally improve orchard illumination,leaves photosynthesis of leavs,fruit tree growth,yield and quality,although the yield can be decreased in a period.
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Claims 10
Claim · model-written summary
Thinning changed crown coverage, ranked CK > C > B > A.
- Taxon
- apple
Malus domesticat0 - Treatment
- thinning methodse1
- Outcome
- performancee0
- Comparator
- CKe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the a performance was in the order of CKC BA”
t0“apple orchard”
e1“The colouring index,soluble sugars,titration acid and the rate of high quality fruits of different thinning methods were higher than CK”
Claim · model-written summary
Light transmittance and intracoronal light transmittance ranked A > B > C > CK.
- Taxon
- appleMalus domesticat0
- Treatment
- thinning methodse1
- Outcome
- light transmittance and intracoronal light transmittancee0
- Comparator
- CKe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“light transmittance and intracoronal light transmittance were ABCCK.”
t0“apple orchard”
e1“The colouring index,soluble sugars,titration acid and the rate of high quality fruits of different thinning methods were higher than CK”
Claim · model-written summary
Net photosynthetic rate, carboxylation efficiency and water use efficiency ranked A > B > C > CK.
- Taxon
- appleMalus domesticat0
- Treatment
- thinning methodse1
- Outcome
- net photosynthetic rate(Pn),carboxylation efficiency(CE) and water use efficiency(WUE)e0
- Comparator
- CKe2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“net photosynthetic rate(Pn),carboxylation efficiency(CE) and water use efficiency(WUE) were ABCCK”
t0“apple orchard”
e1“The colouring index,soluble sugars,titration acid and the rate of high quality fruits of different thinning methods were higher than CK”
e2“and the control(CK)”
Claim · model-written summary
Intercellular CO2 concentration showed the opposite ranking from photosynthetic traits.
- Taxon
- appleMalus domesticat0
- Treatment
- thinning methodse1
- Outcome
- intercellular CO2concentration(CI)e0
- Comparator
- CKe2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while intercellular CO2concentration(CI) was the the contrary”
t0“apple orchard”
e1“The colouring index,soluble sugars,titration acid and the rate of high quality fruits of different thinning methods were higher than CK”
e2“and the control(CK)”
Claim · model-written summary
All three thinning treatments had significantly lower per-hectare yield than the control in year one.
- Taxon
- appleMalus domesticat0
- Treatment
- three different treatmentse0
- Outcome
- per hectaree0
- Direction
- lowere0
- Qualifier
- first yeare0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three different treatments were significantly lower than the control per hectare in the first year”
t0“apple orchard”
Claim · model-written summary
Yield recovered in the second year after thinning.
- Taxon
- appleMalus domesticat0
- Treatment
- thinning methodse1
- Outcome
- yielde0
- Direction
- recoverede0
- Qualifier
- next yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but the yield recovered the next year”
t0“apple orchard”
e1“The colouring index,soluble sugars,titration acid and the rate of high quality fruits of different thinning methods were higher than CK”
Claim · model-written summary
Thinning methods A and B yielded significantly more than C and CK in year three.
- Taxon
- appleMalus domesticat0
- Treatment
- A and Be0
- Outcome
- yielde3
- Direction
- highere0
- Qualifier
- third yeare0
- Comparator
- C and CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the third year A and B were significantly higher than C and CK”
t0“apple orchard”
e3“In terms of yield”
Claim · model-written summary
Thinning raised colouring index, soluble sugars and titration acid relative to CK.
- Taxon
- appleMalus domesticat0
- Treatment
- different thinning methodse0
- Outcome
- colouring index,soluble sugars,titration acide0
- Direction
- highere0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The colouring index,soluble sugars,titration acid and the rate of high quality fruits of different thinning methods were higher than CK”
t0“apple orchard”
Claim · model-written summary
Thinning raised the rate of high quality fruits relative to CK.
- Taxon
- appleMalus domesticat0
- Treatment
- different thinning methodse0
- Outcome
- rate of high quality fruitse0
- Direction
- highere0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The colouring index,soluble sugars,titration acid and the rate of high quality fruits of different thinning methods were higher than CK”
t0“apple orchard”
Claim · model-written summary
A and B had significantly higher fruit quality measures than C and CK.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shown in detail as A and B were significantly higher than C and CK”
t0“apple orchard”
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See all 147 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.