Daminozide · Yield · Malus domestica (apple)

Results differ19 papers: 14 positive, 5 negative or no effect · 4 pairs of papers confirmed to differ

28 claims from these papers; 5 citations between them.

Papers whose results differ, checked claim by claim 4

4 pairs of papers on this question report results that differ: an effect in one paper, the opposite effect or no effect in the other. Two model reviewers reading both claims accepted each pair.

The effect of Alar on vegetative growth and fruiting behaviour of three varieties of apples in the Central Tablelands of New South Wales (1968)
increaseAlar increased fruit set in apple trees.
Studies on the Mechanism of Fruit Abscission in Apple and Peach1 (1977)
decreaseDaminozide reduced fruit set in Golden Delicious apple.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Relation between Early Drop of Apple Fruit and Shoot Growth (1986)
increaseSADH increased fruit set.
Studies on the Mechanism of Fruit Abscission in Apple and Peach1 (1977)
decreaseDaminozide reduced fruit set in Golden Delicious apple.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effects of Succinic Acid 2, 2-Dimethylhydrazide (Alar) on Bloom Delay and Fruit Development of Delicious Apples1 (1970)
increaseAlar at 4000 ppm increased fruit set of Delicious apple trees.
Studies on the Mechanism of Fruit Abscission in Apple and Peach1 (1977)
decreaseDaminozide reduced fruit set in Golden Delicious apple.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Studies on the Mechanism of Fruit Abscission in Apple and Peach1 (1977)
decreaseDaminozide reduced fruit set in Golden Delicious apple.
Effects of Succinic Acid 2, 2-Dimethylhydrazide (Alar) on Bloom Delay and Fruit Development of Delicious Apples1 (1970)
increaseFall Alar increased apple fruit set.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →

How these papers cite each other

5 citations between these papers: 3 on the same side, 2 across the two sides.

Positive result
Negative result or no effect
Citation, pointing to the cited paper
Citation across the two sides
Larger circle: more citations overall

Years run left to right. Citations come from the papers’ OpenAlex reference lists. Hover a paper to bring forward its citations; click it to open the paper.

Papers reporting a positive result 14

The effect of Alar on vegetative growth and fruiting behaviour of three varieties of apples in the Central Tablelands of New South Wales · 1968
- positive
  Alar increased fruit set in apple trees.
cited by 1 paper here
Some Effects of CCC and Alar on Fruit Set and Fruit Quality of Apple1 · 1970
- positive
  Pre-bloom Alar increased fruit set in Golden Delicious.
- negative
  Alar reduced Idared fruit size.
Effects of Succinic Acid 2, 2-Dimethylhydrazide (Alar) on Bloom Delay and Fruit Development of Delicious Apples1 · 1970
- positive
  Alar at 4000 ppm increased fruit set of Delicious apple trees.
cited by 1 paper here
Effects of Succinic Acid 2, 2-Dimethylhydrazide (Alar) on Bloom Delay and Fruit Development of Delicious Apples1 · 1970
- positive
  Fall Alar increased apple fruit set.
- negative
  At harvest, treated fruits were smaller and less elongated.
cited by 1 paper here
Some Effects of CCC and Alar on Fruit Set and Fruit Quality of Apple1 · 1970
- positive
  Pre-bloom Alar increased Golden Delicious fruit set.
- negative
  Alar reduced Idared fruit size.
Effects of Preharvest Applications of Ethephon on Maturity and Quality of Several Apple Cultivars1 · 1972
- positive
  SADH delayed abscission by 2 to 3 days compared with no SADH treatment.
  compared with no SADH treatment
Response of Mechanically-topped Apple Trees to SADH Applied to the Top1 · 1973
- positive
  SADH controlled fruit drop in mechanically topped apple trees.
- negative
  SADH reduced fruit size in mechanically topped apple trees.
Preliminary studies on the use of growth regulators for hastening or delaying of maturation rate of apples. · 1985
- positive
  Preharvest Alar with GA delayed optimum harvest maturity of apples.
Relation between Early Drop of Apple Fruit and Shoot Growth · 1986
- positive
  SADH increased fruit set.
cites 1 paper here
Summer Pruning Affects Yield and Improves Fruit Quality of `McIntosh' Apples · 1990
- positive
  Summer pruning combined with daminozide treatment significantly increased estimated net returns.
Growth and Productivity of Vigorous `Northern Spy'/MM.106 Apple Trees in Response to Annually Applied Growth Control Techniques · 1990
- positive
  Summer daminozide plus ethephon increased total yield by 36%.
  compared with Controls were unsprayed
- positive
  Postbloom daminozide increased total yield by 34%.
  compared with Controls were unsprayed
- no effect
  Postharvest daminozide had little or no effect on bloom, fruit set, or yield.
  compared with Controls were unsprayed
- negative
  Postharvest daminozide reduced fruit size.
  compared with Controls were unsprayed
cites 4 papers here
Fruit and Hormones Influence Flowering of Apple. I. Effect of Cultivar · 1991
- positive
  BA and daminozide increased return bloom except in Early McIntosh.
LONG-TERM EFFECTS OF PLANT GROWTH REGULATORS ON TISSUE-CULTURED APPLE TREES · 1993
- positive
  Alar-ethrel treatment produced significantly larger yields than budded controls.
  compared with budded controls
- no effect
  Alar-ethrel yields did not differ from tissue-cultured controls.
  compared with TC controls
Apple fruitlet thinning of Golden Delicious trees · 2013
- positive
  Ethephon and SADH mixture increased fruit size in the year of thinning.

Papers reporting a negative result or no effect 5

Effects of Annual Sprays of Succinic Acid-2,2-dimethylhydrazide on Vegetative Growth, Fruiting, Fruit Quality and Pre-Harvest Drop of ‘Delicious’ Apple Trees1 · 1971
- no effect
  SADH had no effect on trunk circumference increase, bloom or fruit set.
- negative
  All SADH treatments except 500 ppm in mid-June or mid-July reduced fruit size.
cited by 1 paper here
Studies on the Mechanism of Fruit Abscission in Apple and Peach1 · 1977
- negative
  Daminozide reduced fruit set in Golden Delicious apple.
The Effects of Daminozide and Gibberellic Acid on Flower Initiation, Growth and Fruiting of Apple cv Golden Delicious · 1979
- no effect
  Daminozide at 2000 ppm did not influence apple node production rate.
cited by 1 paper here
INFLUENCE OF GROWTH REGULATORS ON APPLE FRUIT CRACKING ( CV "STAYMAN RED") · 1983
- negative
  2000 ppm Alar reduced fruit weight and yield per tree in Stayman Red apple.
Effects of Dilute and Concentrated Sprays of NAA and Carbaryl in Combination with Daminozide and Pesticides on Fruit Size and Return Bloom of ‘Starkrimson Delicious’ Apple1 · 1983
- no effect
  With daminozide added, fruit size was about the same as on unsprayed check trees.
  compared with unsprayed check trees

A paper is on the positive side when any of its claims here is positive. Claims are grouped by organism, treatment and what was measured or targeted. Claims that compare genotypes are left out; a claim about lacking a nutrient counts the other way round in that nutrient’s question. “Results differ” marks a question where two model reviewers, reading both claims, accepted at least one pair of papers whose results differ.

Daminozide · Yield · Malus domestica (apple)

Papers whose results differ, checked claim by claim 4

How these papers cite each other

Papers reporting a positive result 14

Papers reporting a negative result or no effect 5

Daminozide on Malus domestica (apple) against other targets

Daminozide · yield on other organisms