Abstract
5-year-old apple trees(Yanfu 3/M26/Malus hupehensis Rehd.)were treated with three different plant growth regulators to study the effect on fruit setting,which were α-Naphthalene acetic acid(NAA,10 mg · L~(-1)),Ethrel(600 mg · L~(-1))and 6-Benzylaminopurine(6-BA,100 mg · L~(-1))respectively,and all the trees were labeled with ~(13)C and ~(15)N to determine the characteristics of carbon and nitrogen utilization. The results showed that fruit-set rate was obviously lower than control when sprayed with 10 mg · L~(-1) NAA and 600 mg · L~(-1) Ethrel 14 days after bloom,while no significant difference was found on spraying 100 mg · L~(-1) 6-BA treatment. The ~(13) and ~(15)N distribution to fruits of NAA and Ethrel treatments were 1.11%,1.22% and 0.39%,0.33% respectively,which were lower than control(9.12%,7.29%),while the ~(13)C allocation to roots and branches were higher than control significantly. Similar regulation can be seen on Ndff of NAA and Ethrel treatments,the treatments improved the leaves,roots and branches duty ability of ~(15)N,and reduced the fruits duty ability of ~(15)N. The ~(15)N utilization rate was increased by 2.35% and 2.37% respectively when sprayed NAA and Ethrel compared with control,and the treatments promoted the vegetative growth and the duty ability of N photosynthate of the roots,leaves and branches,while no significant difference was found on the ~(15)N utilization of 6-BA treatment.
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Claims 12
Claim · model-written summary
NAA reduced apple fruit-set rate relative to control.
- Taxon
- apple trees
Malus domesticae1 - Treatment
- 10 mg · L~(-1) NAAe0
- Outcome
- fruit-set ratee0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit-set rate was obviously lower than control when sprayed with 10 mg · L~(-1) NAA”
e1“apple trees”
Claim · model-written summary
Ethrel reduced apple fruit-set rate relative to control.
- Taxon
- apple treesMalus domesticae1
- Treatment
- 600 mg · L~(-1) Ethrele0
- Outcome
- fruit-set ratee0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit-set rate was obviously lower than control when sprayed with 10 mg · L~(-1) NAA and 600 mg · L~(-1) Ethrel 14 days after bloom”
e1“apple trees”
Claim · model-written summary
6-BA did not significantly change fruit-set rate.
- Taxon
- apple treesMalus domesticae2
- Treatment
- 100 mg · L~(-1) 6-BA treatmente0
- Outcome
- fruit-set ratee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant difference was found on spraying 100 mg · L~(-1) 6-BA treatment.”
e1“fruit-set rate”
e2“apple trees”
Claim · model-written summary
NAA reduced carbon distribution to fruits to 1.11% versus 9.12% in control.
- Taxon
- apple treesMalus domesticae1
- Treatment
- NAAe0
- Outcome
- distribution to fruitse0
- Direction
- lowere0
- Value
- 1.11%e0
- Qualifier
- 9.12%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ~(13) and ~(15)N distribution to fruits of NAA and Ethrel treatments were 1.11%,1.22% and 0.39%,0.33% respectively,which were lower than control(9.12%,7.29%)”
e1“apple trees”
Claim · model-written summary
Ethrel reduced carbon distribution to fruits to 1.22% versus control.
- Taxon
- apple treesMalus domesticae1
- Treatment
- Ethrele0
- Outcome
- distribution to fruitse0
- Direction
- lowere0
- Value
- 1.22%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ~(13) and ~(15)N distribution to fruits of NAA and Ethrel treatments were 1.11%,1.22% and 0.39%,0.33% respectively,which were lower than control(9.12%,7.29%)”
e1“apple trees”
Claim · model-written summary
NAA reduced nitrogen distribution to fruits to 0.39%.
- Taxon
- apple treesMalus domesticae1
- Treatment
- NAAe0
- Outcome
- ~(15)N distribution to fruitse0
- Direction
- lowere0
- Value
- 0.39%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ~(13) and ~(15)N distribution to fruits of NAA and Ethrel treatments were 1.11%,1.22% and 0.39%,0.33% respectively,which were lower than control(9.12%,7.29%)”
e1“apple trees”
Claim · model-written summary
Ethrel reduced nitrogen distribution to fruits to 0.33%.
- Taxon
- apple treesMalus domesticae1
- Treatment
- Ethrele0
- Outcome
- ~(15)N distribution to fruitse0
- Direction
- lowere0
- Value
- 0.33%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ~(13) and ~(15)N distribution to fruits of NAA and Ethrel treatments were 1.11%,1.22% and 0.39%,0.33% respectively,which were lower than control(9.12%,7.29%)”
e1“apple trees”
Claim · model-written summary
NAA and Ethrel increased carbon allocation to roots and branches.
- Taxon
- apple treesMalus domesticae2
- Treatment
- NAA and Ethrel treatmentse1
- Outcome
- ~(13)C allocation to roots and branchese0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the ~(13)C allocation to roots and branches were higher than control significantly.”
e1“NAA and Ethrel treatments were 1.11%”
e2“apple trees”
Claim · model-written summary
NAA and Ethrel improved nitrogen allocation to leaves, roots and branches and reduced it to fruits.
- Taxon
- apple treesMalus domesticae2
- Treatment
- NAA and Ethrel treatmentse1
- Outcome
- leaves,roots and branches duty ability of ~(15)Ne0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatments improved the leaves,roots and branches duty ability of ~(15)N,and reduced the fruits duty ability of ~(15)N.”
e1“NAA and Ethrel treatments were 1.11%”
e2“apple trees”
Claim · model-written summary
NAA increased nitrogen utilization rate by 2.35%.
- Taxon
- apple treesMalus domesticae1
- Treatment
- NAAe0
- Outcome
- ~(15)N utilization ratee0
- Direction
- increasede0
- Value
- 2.35%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ~(15)N utilization rate was increased by 2.35% and 2.37% respectively when sprayed NAA and Ethrel compared with control”
e1“apple trees”
Claim · model-written summary
Ethrel increased nitrogen utilization rate by 2.37%.
- Taxon
- apple treesMalus domesticae1
- Treatment
- Ethrele0
- Outcome
- ~(15)N utilization ratee0
- Direction
- increasede0
- Value
- 2.37%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ~(15)N utilization rate was increased by 2.35% and 2.37% respectively when sprayed NAA and Ethrel compared with control”
e1“apple trees”
Claim · model-written summary
6-BA did not significantly alter nitrogen utilization.
- Taxon
- apple treesMalus domesticae1
- Treatment
- 6-BA treatmente0
- Outcome
- ~(15)N utilizatione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant difference was found on the ~(15)N utilization of 6-BA treatment.”
e1“apple trees”
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