Abstract
Biennial bearing of apple trees can be overcome either by the use of a blossom chemical thinner or by early application of a postbloom thinner. Carbaryl (Sevin) is a post-bloom fruit-thinning chemical with an effective thinning period of 4 to 5 weeks after bloom. Sevin was compared in 1992 and 1993 with NAA as an early petal-fall spray. Sevin treatments reduced fruit set to one fruit per cluster with no adverse side effects on the foliage. NAA inconsistently reduced fruit set and the remaining fruit were in clusters, The NAA-treated foliage was adversely affected; having small curled leaves. NAA at 10 ppm under-thinned in 1992 and seriously over-thinned in 1993, whereas Sevin treatments were consistent for fruit thinning in both years. Sevin applied at petal-fall or at petal-fall + 7 days effectively reduced fruit set and reduced fruit competition.
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Claims 9
Claim · model-written summary
Sevin reduced apple fruit set to one fruit per cluster.
- Taxon
- Apples
Malus domesticat0 - Treatment
- Sevin treatmentse0
- Outcome
- fruit sete0
- Direction
- reducede0
- Value
- one fruit per clustere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sevin treatments reduced fruit set to one fruit per cluster”
t0“Apples”
Claim · model-written summary
Sevin had no adverse effects on apple foliage.
- Taxon
- ApplesMalus domesticat0
- Treatment
- Sevin treatmentse0
- Outcome
- adverse side effects on the foliagee0
- Direction
- no adversee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sevin treatments reduced fruit set to one fruit per cluster with no adverse side effects on the foliage”
t0“Apples”
Claim · model-written summary
NAA inconsistently reduced apple fruit set, leaving fruit in clusters.
- Taxon
- ApplesMalus domesticat0
- Treatment
- NAAe0
- Outcome
- fruit sete0
- Direction
- inconsistently reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NAA inconsistently reduced fruit set and the remaining fruit were in clusters”
t0“Apples”
Claim · model-written summary
NAA adversely affected foliage, producing small curled leaves.
- Taxon
- ApplesMalus domesticat0
- Treatment
- NAAe0
- Outcome
- small curled leavese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NAA-treated foliage was adversely affected; having small curled leaves”
t0“Apples”
Claim · model-written summary
NAA at 10 ppm under-thinned apple fruit in 1992.
- Taxon
- ApplesMalus domesticat0
- Treatment
- NAA at 10 ppme0
- Outcome
- under-thinnede0
- Direction
- under-thinnede0
- Setting
- 1992e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NAA at 10 ppm under-thinned in 1992”
t0“Apples”
Claim · model-written summary
NAA at 10 ppm seriously over-thinned apple fruit in 1993.
- Taxon
- ApplesMalus domesticat0
- Treatment
- NAA at 10 ppme0
- Outcome
- seriously over-thinnede0
- Direction
- over-thinnede0
- Setting
- 1993e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NAA at 10 ppm under-thinned in 1992 and seriously over-thinned in 1993”
t0“Apples”
Claim · model-written summary
Sevin consistently thinned fruit in both years.
- Taxon
- ApplesMalus domesticat0
- Treatment
- Sevin treatmentse0
- Outcome
- fruit thinninge0
- Direction
- consistente0
- Qualifier
- both yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sevin treatments were consistent for fruit thinning in both years”
t0“Apples”
Claim · model-written summary
Sevin at petal fall or seven days later reduced fruit set.
- Taxon
- ApplesMalus domesticat0
- Treatment
- Sevin applied at petal-fall or at petal-fall + 7 dayse0
- Outcome
- fruit sete0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sevin applied at petal-fall or at petal-fall + 7 days effectively reduced fruit set”
t0“Apples”
Claim · model-written summary
Sevin at petal fall or seven days later reduced fruit competition.
- Taxon
- ApplesMalus domesticat0
- Treatment
- Sevin applied at petal-fall or at petal-fall + 7 dayse0
- Outcome
- fruit competitione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sevin applied at petal-fall or at petal-fall + 7 days effectively reduced fruit set and reduced fruit competition”
t0“Apples”
The same questions in other papers
carbaryl · yield · Malus domestica (apple)Results differ
31 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- no effect
38 papers more in this group
See all 42 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.