Abstract
Twenty-eight-year-old `Starkrimson Delicious' and 10-year-old `Fullred Delicious' apple (Malus domestics Borkh.) trees were spur-pruned in 1986 and 1987 and/or treated with 500 mg BA + GA 4+7 /liter in 1986 in an attempt to improve spur growth and increase fruit weight. All treatment combinations generally failed to improve yield or fruit size. BA + GA 4+7 reduced yield and fruit weight and increased the number of pygmy fruit in 1986, but had little effect on fruiting or vegetative growth for 3 years after treatment. Spur-pruning reduced spur density in 1986 and 1987 and increased yield, but not fruit weight, in 1987. Although spur-pruning improved spur length, spur bud diameter, leaf area per spur, and leaf dry weight per spur, fruit weight was not improved. Chemical names used: N -(phenylmethyl)-1H -purine-6-amine [benzyladenine (BA)]; gibberellin (GA 4+7 ).
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Claims 9
Claim · model-written summary
Treatment combinations generally failed to improve apple yield or fruit size.
- Taxon
- Apple
Malus domesticat0 - Treatment
- treatment combinationse0
- Outcome
- yield or fruit sizee0
- Direction
- failed to improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All treatment combinations generally failed to improve yield or fruit size.”
t0“Apple Trees”
Claim · model-written summary
BA plus GA reduced yield and fruit weight in 1986.
- Taxon
- AppleMalus domesticat0
- Treatment
- BA + GA 4+7e0
- Outcome
- yield and fruit weighte0
- Direction
- reducede0
- Qualifier
- in 1986e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BA + GA 4+7 reduced yield and fruit weight and increased the number of pygmy fruit in 1986”
t0“Apple Trees”
Claim · model-written summary
BA plus GA increased the number of pygmy fruit in 1986.
- Taxon
- AppleMalus domesticat0
- Treatment
- BA + GA 4+7e0
- Outcome
- number of pygmy fruite0
- Direction
- increasede0
- Qualifier
- in 1986e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BA + GA 4+7 reduced yield and fruit weight and increased the number of pygmy fruit in 1986”
t0“Apple Trees”
Claim · model-written summary
BA plus GA had little effect on fruiting or vegetative growth for three years.
- Taxon
- AppleMalus domesticat0
- Treatment
- BA + GA 4+7e0
- Outcome
- fruiting or vegetative growthe0
- Direction
- little effecte0
- Qualifier
- for 3 years after treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BA + GA 4+7 reduced yield and fruit weight and increased the number of pygmy fruit in 1986, but had little effect on fruiting or vegetative growth for 3 years after treatment”
t0“Apple Trees”
Claim · model-written summary
Spur pruning reduced spur density in 1986 and 1987.
- Taxon
- AppleMalus domesticat0
- Treatment
- Spur-pruninge0
- Outcome
- spur densitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spur-pruning reduced spur density in 1986 and 1987”
t0“Apple Trees”
Claim · model-written summary
Spur pruning increased yield in 1987.
- Taxon
- AppleMalus domesticat0
- Treatment
- Spur-pruninge0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- in 1987e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spur-pruning reduced spur density in 1986 and 1987 and increased yield, but not fruit weight, in 1987.”
t0“Apple Trees”
Claim · model-written summary
Spur pruning did not increase fruit weight in 1987.
- Taxon
- AppleMalus domesticat0
- Treatment
- Spur-pruninge0
- Outcome
- fruit weighte0
- Direction
- note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spur-pruning reduced spur density in 1986 and 1987 and increased yield, but not fruit weight, in 1987.”
t0“Apple Trees”
Claim · model-written summary
Spur pruning improved spur length, spur bud diameter, leaf area and dry weight per spur.
- Taxon
- AppleMalus domesticat0
- Treatment
- spur-pruninge0
- Outcome
- spur length, spur bud diameter, leaf area per spur, and leaf dry weight per spure0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spur-pruning improved spur length, spur bud diameter, leaf area per spur, and leaf dry weight per spur”
t0“Apple Trees”
Claim · model-written summary
Despite improved spur growth, spur pruning did not improve fruit weight.
- Taxon
- AppleMalus domesticat0
- Treatment
- spur-pruninge0
- Outcome
- fruit weighte0
- Direction
- not improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although spur-pruning improved spur length, spur bud diameter, leaf area per spur, and leaf dry weight per spur, fruit weight was not improved.”
t0“Apple Trees”
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See all 27 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.