Abstract
Abstract In March 1974 vigorous 1-year-old terminal branch sections of ‘Delicious’/Mailing 9 apple ( Malus domestica Borkh.) trees were all headed-back 2/3 or removed (3/3). Three weeks after full-bloom (AFB) the dormant-pruned trees received current-season's-shoot removal and/or 1000 ppm succinic acid-2,2-dimethyl-hydrazide (daminozide, SADH) treatments in a factorial experimental design. Total number and growth of shoots from 1- and/or 2-year-old branch sections were the same regardless of dormant pruning. Only a small amount of that growth occurred on 2-year-old branch sections where terminals were headed-back 2/3. Nitrogen movement was altered in the fruiting zone of the canopy by heading-back treatments. Shoot removal AFB affected total shoot growth only when bases where shoots were removed were treated with 1% naphthaleneacetic acid (NAA). SADH reduced shoot growth 18%. Yield was primarily a function of fruit-load in the interior of the tree and was reduced by every treatment which increased shoot growth on 2-year-old branch sections. In 1974 effects of treatments on yield were independent and combinations of treatments individually increasing yield showed addtive effects. Heading-back 3/3 in 1974 reduced fruits per tree in 1975 due to spur loss. Only the 1974 shoot-removal treatments had a carry-over effect on shoot growth in 1975.
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Claims 11
Claim · model-written summary
Dormant pruning levels produced the same total shoot number and growth from one- and two-year-old apple branches.
- Taxon
- apple
Malus domesticae1 - Treatment
- dormant pruninge0
- Outcome
- Total number and growth of shootse0
- Direction
- the samee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total number and growth of shoots from 1- and/or 2-year-old branch sections were the same regardless of dormant pruning.”
e1“apple ( Malus domestica Borkh.) trees”
Claim · model-written summary
Only a small amount of shoot growth occurred on two-year-old apple branches after terminals were headed back two-thirds.
- Taxon
- appleMalus domesticae1
- Organ / stage
- 2-year-old branch sectionse0
- Treatment
- terminals were headed-back 2/3e0
- Outcome
- a small amount of that growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only a small amount of that growth occurred on 2-year-old branch sections where terminals were headed-back 2/3.”
e1“apple ( Malus domestica Borkh.) trees”
Claim · model-written summary
Heading-back altered nitrogen movement in the apple canopy fruiting zone.
- Taxon
- appleMalus domesticae1
- Organ / stage
- fruiting zone of the canopye0
- Treatment
- heading-back treatmentse0
- Outcome
- Nitrogen movemente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen movement was altered in the fruiting zone of the canopy by heading-back treatments.”
e1“apple ( Malus domestica Borkh.) trees”
Claim · model-written summary
After-bloom shoot removal affected total apple shoot growth only when removed-shoot bases received 1% NAA.
- Taxon
- appleMalus domesticae1
- Treatment
- Shoot removal AFBe0
- Outcome
- total shoot growthe0
- Qualifier
- bases where shoots were removed were treated with 1% naphthaleneacetic acid (NAA)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot removal AFB affected total shoot growth only when bases where shoots were removed were treated with 1% naphthaleneacetic acid (NAA).”
e1“apple ( Malus domestica Borkh.) trees”
Claim · model-written summary
SADH reduced apple shoot growth by 18%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SADH reduced shoot growth 18%.”
e1“apple ( Malus domestica Borkh.) trees”
Claim · model-written summary
Apple yield was primarily associated with fruit load in the tree interior.
- Taxon
- appleMalus domesticae1
- Organ / stage
- interior of the treee0
- Outcome
- Yielde0
- Qualifier
- fruit-loade0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield was primarily a function of fruit-load in the interior of the tree”
e1“apple ( Malus domestica Borkh.) trees”
Claim · model-written summary
Treatments increasing shoot growth on two-year-old apple branches reduced yield.
- Taxon
- appleMalus domesticae2
- Organ / stage
- 2-year-old branch sectionse0
- Treatment
- every treatment which increased shoot growthe0
- Outcome
- Yielde1
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was reduced by every treatment which increased shoot growth on 2-year-old branch sections.”
e1“Yield was primarily a function of fruit-load in the interior of the tree”
e2“apple ( Malus domestica Borkh.) trees”
Claim · model-written summary
In 1974, apple treatment effects on yield were independent.
- Taxon
- appleMalus domesticae1
- Outcome
- effects of treatments on yield were independente0
- Qualifier
- In 1974e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1974 effects of treatments on yield were independent”
e1“apple ( Malus domestica Borkh.) trees”
Claim · model-written summary
Combinations of apple treatments that each increased yield had additive yield effects in 1974.
- Taxon
- appleMalus domesticae2
- Treatment
- combinations of treatmentse0
- Outcome
- addtive effectse0
- Direction
- increasinge0
- Qualifier
- In 1974e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combinations of treatments individually increasing yield showed addtive effects.”
e1“In 1974 effects of treatments on yield were independent”
e2“apple ( Malus domestica Borkh.) trees”
Claim · model-written summary
Complete heading-back in 1974 reduced fruits per apple tree in 1975 because of spur loss.
- Taxon
- appleMalus domesticae1
- Treatment
- Heading-back 3/3e0
- Outcome
- fruits per treee0
- Direction
- reducede0
- Qualifier
- in 1975 due to spur losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heading-back 3/3 in 1974 reduced fruits per tree in 1975 due to spur loss.”
e1“apple ( Malus domestica Borkh.) trees”
Claim · model-written summary
Only 1974 shoot-removal treatments had a carry-over effect on apple shoot growth in 1975.
- Taxon
- appleMalus domesticae1
- Treatment
- 1974 shoot-removal treatmentse0
- Outcome
- carry-over effect on shoot growth in 1975e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only the 1974 shoot-removal treatments had a carry-over effect on shoot growth in 1975.”
e1“apple ( Malus domestica Borkh.) trees”
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See all 106 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.