Abstract
NAA (α-naphthylacetic acid) thins apple fruits inconsistently regarding fruit set and weight and may cause small or misshapen fruits occurrence. Considering hormonal activity, surfactant properties and the impact of naphthenic acids (NAs) on the metabo-lism of auxins in plant tissue, it is assumed that thinning response and fruit size could be improved by adding NAs to NAA for chemical thinning of apple. The purpose of the re-search was to evaluate thinning efficacy of the mixture of NAA and NAs in two commer-cially grown apple cultivars, ‘Golden Delicious’ and ‘Fuji’, known to respond differently to the application of NAA. The following treatments were applied during a three-year pe-riod, from 2010 to 2012: 10 mg∙L-1 NAA, 10 mg∙L-1 NAA + 1.56 mg∙L-1 NAs, 20 mg∙L-1 NAA, 20 mg∙L-1 NAA + 3.12 mg∙L-1 NAs and an untreated control. The addition of NAs to NAA did not alter the effectiveness of NAA in reducing fruit set, while it significantly increased fruit weight compared to NAA applied alone in two of three years of the exper-iment. NAs modulated the effect of NAA on fruit weight of apple cultivar ‘Fuji’ by re-tarding fruit growth and causing a higher number of small fruits to occur compared to NAA applied alone.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Adding NAs did not alter NAA reduction of fruit set.
- Taxon
- apple
Malus domesticat0 - Treatment
- addition of NAs to NAAe0
- Outcome
- fruit sete0
- Direction
- did not altere0
- Comparator
- NAAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of NAs to NAA did not alter the effectiveness of NAA in reducing fruit set”
t0“apple trees”
Claim · model-written summary
Adding NAs increased fruit weight versus NAA alone in two of three years.
- Taxon
- appleMalus domesticat0
- Treatment
- addition of NAs to NAAe1
- Outcome
- fruit weighte0
- Direction
- increasede0
- Qualifier
- two of three yearse0
- Comparator
- NAA applied alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it significantly increased fruit weight compared to NAA applied alone in two of three years of the exper-iment”
e1“addition of NAs to NAA”
t0“apple trees”
Claim · model-written summary
In Fuji, NAs with NAA retarded fruit growth versus NAA alone.
- Taxon
- appleMalus domesticae0
- Material
- ‘Fuji’e0
- Treatment
- NAse0
- Outcome
- fruit growthe0
- Direction
- re-tardinge0
- Comparator
- NAA applied alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NAs modulated the effect of NAA on fruit weight of apple cultivar ‘Fuji’ by re-tarding fruit growth and causing a higher number of small fruits to occur compared to NAA applied alone”
Claim · model-written summary
In Fuji, NAs with NAA increased the number of small fruits versus NAA alone.
- Taxon
- appleMalus domesticae0
- Material
- ‘Fuji’e0
- Treatment
- NAse0
- Outcome
- number of small fruitse0
- Direction
- highere0
- Comparator
- NAA applied alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NAs modulated the effect of NAA on fruit weight of apple cultivar ‘Fuji’ by re-tarding fruit growth and causing a higher number of small fruits to occur compared to NAA applied alone”
The same questions in other papers
1-naphthaleneacetic acid · yield · Malus domestica (apple)Results differ
49 papers in the same direction as this paper · 15 in the opposite direction
- positive
- no effect
- negative
61 papers more in this group
See all 65 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.