Abstract
Hydrogen cyanamide (Dormex, 50% a.i.) for blossom thinning `Early Spur Rome' and `Law Rome' apple ( Malus×domestica Borkh.) and `Flavorcrest' peach ( Prunus persica L.) was applied with air-blast sprayers on a commercial scale. Full-bloom applications of hydrogen cyanamide at 4 pts formulation per 200 gal/acre (1288 mg·L −1 ) and 5 pts formulation per 200 gal/acre (1610 mg·L −1 ) significantly reduced fruit set in apple and peach. In `Early Spur Rome', a postbloom application of carbaryl [Sevin XLR Plus, 4 lb a.i./gal (0.48 kg·L −1 )] following a full-bloom spray of hydrogen cyanamide increased fruit thinning with a significant increase in fruit size compared to an application of hydrogen cyanamide alone. In `Law Rome', trees receiving a full-bloom application of hydrogen cyanamide followed by a postbloom application of 1-naphthyl- N -methylcarbamate (carbaryl) + naphthalene acetic acid (NAA) had significantly lower fruit set and larger fruit than those in the carbaryl + NAA treatment. Apples or peaches were not marked by hydrogen cyanamide.
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Claims 8
Claim · model-written summary
Full-bloom hydrogen cyanamide significantly reduced apple fruit set.
- Taxon
- apple
Malus domesticae0 - Treatment
- hydrogen cyanamide at 4 pts formulation per 200 gal/acree0
- Outcome
- fruit sete0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Full-bloom applications of hydrogen cyanamide at 4 pts formulation per 200 gal/acre (1288 mg·L −1 ) and 5 pts formulation per 200 gal/acre (1610 mg·L −1 ) significantly reduced fruit set in apple and peach”
Claim · model-written summary
Full-bloom hydrogen cyanamide significantly reduced peach fruit set.
- Taxon
- peach
Prunus persicae0 - Treatment
- 5 pts formulation per 200 gal/acree0
- Outcome
- fruit sete0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Full-bloom applications of hydrogen cyanamide at 4 pts formulation per 200 gal/acre (1288 mg·L −1 ) and 5 pts formulation per 200 gal/acre (1610 mg·L −1 ) significantly reduced fruit set in apple and peach”
Claim · model-written summary
Adding postbloom carbaryl increased thinning of Early Spur Rome apple relative to cyanamide alone.
- Taxon
- AppleMalus domesticat0
- Material
- Early Spur Romee0
- Treatment
- postbloom application of carbaryle0
- Outcome
- fruit thinninge0
- Direction
- increasede0
- Comparator
- application of hydrogen cyanamide alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In `Early Spur Rome', a postbloom application of carbaryl [Sevin XLR Plus, 4 lb a.i./gal (0.48 kg·L −1 )] following a full-bloom spray of hydrogen cyanamide increased fruit thinning with a significant increase in fruit size compared to an application of hydrogen cyanamide alone”
t0“Commercial-scale Use of Hydrogen Cyanamide for Apple and Peach Blossom Thinning”
Claim · model-written summary
Adding postbloom carbaryl significantly increased Early Spur Rome fruit size.
- Taxon
- AppleMalus domesticat0
- Material
- Early Spur Romee0
- Treatment
- postbloom application of carbaryle0
- Outcome
- fruit sizee0
- Direction
- increasee0
- Comparator
- application of hydrogen cyanamide alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In `Early Spur Rome', a postbloom application of carbaryl [Sevin XLR Plus, 4 lb a.i./gal (0.48 kg·L −1 )] following a full-bloom spray of hydrogen cyanamide increased fruit thinning with a significant increase in fruit size compared to an application of hydrogen cyanamide alone”
t0“Commercial-scale Use of Hydrogen Cyanamide for Apple and Peach Blossom Thinning”
Claim · model-written summary
Cyanamide followed by carbaryl and NAA significantly lowered Law Rome fruit set relative to carbaryl and NAA.
- Taxon
- AppleMalus domesticat0
- Material
- Law Romee0
- Treatment
- full-bloom application of hydrogen cyanamide followed by a postbloom application of 1-naphthyl- N -methylcarbamate (carbaryl) + naphthalene acetic acid (NAA)e0
- Outcome
- fruit sete0
- Direction
- lowere0
- Comparator
- carbaryl + NAA treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In `Law Rome', trees receiving a full-bloom application of hydrogen cyanamide followed by a postbloom application of 1-naphthyl- N -methylcarbamate (carbaryl) + naphthalene acetic acid (NAA) had significantly lower fruit set and larger fruit than those in the carbaryl + NAA treatment”
t0“Commercial-scale Use of Hydrogen Cyanamide for Apple and Peach Blossom Thinning”
Claim · model-written summary
Cyanamide followed by carbaryl and NAA produced larger Law Rome fruit.
- Taxon
- AppleMalus domesticat0
- Material
- Law Romee0
- Treatment
- full-bloom application of hydrogen cyanamide followed by a postbloom application of 1-naphthyl- N -methylcarbamate (carbaryl) + naphthalene acetic acid (NAA)e0
- Outcome
- fruite0
- Direction
- largere0
- Comparator
- carbaryl + NAA treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In `Law Rome', trees receiving a full-bloom application of hydrogen cyanamide followed by a postbloom application of 1-naphthyl- N -methylcarbamate (carbaryl) + naphthalene acetic acid (NAA) had significantly lower fruit set and larger fruit than those in the carbaryl + NAA treatment”
t0“Commercial-scale Use of Hydrogen Cyanamide for Apple and Peach Blossom Thinning”
Claim · model-written summary
Hydrogen cyanamide did not mark apples.
- Taxon
- ApplesMalus domesticae0
- Outcome
- not marked by hydrogen cyanamidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apples or peaches were not marked by hydrogen cyanamide”
Claim · model-written summary
Hydrogen cyanamide did not mark peaches.
- Taxon
- peachesPrunus persicae0
- Outcome
- not marked by hydrogen cyanamidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apples or peaches were not marked by hydrogen cyanamide”
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
- no effect
- no effect
- negative
38 papers more in this group
See all 42 papers →1-naphthaleneacetic acid · yield · Malus domestica (apple)Results differ
49 papers in the same direction as this paper · 15 in the opposite direction
- no effect
- negative
- negative
61 papers more in this group
See all 65 papers →cyanamide · yield · Malus domestica (apple)Positive and negative results
4 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- no effect
4 papers more in this group
See all 8 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.