Paper · 2008 · HortScience

Characterizing the Interaction between NAA and BA on Apple Fruit Abscission and Development

Martin J. Bukovac; Paolo Sabbatini; Philip G. Schwallier; et al.

19
claims
43
verbatim quotes
9
citations
3
research areas
✓
Open access

Abstract

NAA and BA are important compounds for regulating crop load in apples ( Malus domestica Borkh.). When used for fruit thinning, both induce abscission, but at an equivalent crop load NAA tends to reduce and BA to increase fruit size. There is a strong interaction between NAA and BA when used together on ‘Delicious’ and ‘Fuji’, leading to excessive development of pygmy and small fruit (<65 mm diameter). The combination of BA (as Promalin, 1:1 BA + GA 4+7 ) applied at king bloom (KB) and NAAm (amide) at petal fall increased the percentage of small fruit by 3.3- or 5.1-fold compared with BA or NAAm alone. Similar results were obtained with BA (Promalin) at KB oversprayed with NAA at 10 to 12 mm king fruit diameter (KFD). When NAA was oversprayed with BA during fruitlet development, i.e., 5 to 6 mm, 10 to 12 mm, and ≈18 mm KFD, the greatest inhibition of fruit growth occurred at the 10- to 12-mm KFD stage, and there was no significant effect at 18 mm KFD. Inhibition by treatment at the 5- to 6-mm stage was intermediate and trees were overthinned. NAA + BA inhibition of fruit growth in ‘Delicious’ and ‘Fuji’ was not crop load-dependent. In all experiments, crop load (wt basis) of trees treated with NAA + BA was similar or less than of those treated with NAA or BA alone, but they produced 2.5- to 5-fold more small fruit. NAA + BA increased the number of fruit per cluster, many of which failed to fully develop. Increasing the ratio of BA to NAA from 25:15 to 125:15 mg·L −1 increased small fruit formation. The presence of GA 4+7 in commercial formulations of BA (0:100, Maxcel; 10:100, Accel; 50:50, Promalin) did not significantly affect the NAA + BA response. Fruit growth was not inhibited by the NAA + BA combination in large-fruited ‘Golden Delicious’ and ‘Jonagold’ and was increased in small-fruited ‘Elstar’ and ‘Gala’ compared with the nontreated control.

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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 19

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NAA and BA each induced fruit abscission during thinning.

Treatment
NAA and BAe1
Outcome
abscissione0
Direction
inducee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“When used for fruit thinning, both induce abscission”

✓ located verbatim in the source · abstract, characters 97–149 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
e1

“NAA and BA are important compounds for regulating crop load in apples ( Malus domestica Borkh.).”

✓ located verbatim in the source · abstract, characters 0–96 · show in text ↑
Intervention effectauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

At equivalent crop load, NAA tended to reduce fruit size.

Treatment
NAAe0
Outcome
fruit sizee0
Direction
reducee0
Qualifier
equivalent crop loade0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“at an equivalent crop load NAA tends to reduce and BA to increase fruit size.”

✓ located verbatim in the source · abstract, characters 155–232 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

At equivalent crop load, BA tended to increase fruit size.

Treatment
BAe0
Outcome
fruit sizee0
Direction
increasee0
Qualifier
equivalent crop loade0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“at an equivalent crop load NAA tends to reduce and BA to increase fruit size.”

✓ located verbatim in the source · abstract, characters 155–232 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Combined NAA and BA led to excessive pygmy and small fruit in Delicious and Fuji.

Material
‘Delicious’ and ‘Fuji’e0
Treatment
NAA and BAe0
Outcome
pygmy and small fruite0
Direction
excessivee0
Value
<65 mm diametere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“There is a strong interaction between NAA and BA when used together on ‘Delicious’ and ‘Fuji’, leading to excessive development of pygmy and small fruit (<65 mm diameter).”

✓ located verbatim in the source · abstract, characters 233–404 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

BA at king bloom plus NAAm at petal fall increased small fruit 3.3-fold versus BA alone.

Treatment
BA (as Promalin, 1:1 BA + GA 4+7 ) applied at king bloom (KB) and NAAm (amide) at petal falle0
Outcome
percentage of small fruite0
Direction
increasede0
Value
3.3- or 5.1-folde0
Comparator
BAe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“The combination of BA (as Promalin, 1:1 BA + GA 4+7 ) applied at king bloom (KB) and NAAm (amide) at petal fall increased the percentage of small fruit by 3.3- or 5.1-fold compared with BA or NAAm alone.”

✓ located verbatim in the source · abstract, characters 405–608 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

BA at king bloom plus NAAm at petal fall increased small fruit relative to NAAm alone.

Treatment
BA (as Promalin, 1:1 BA + GA 4+7 ) applied at king bloom (KB) and NAAm (amide) at petal falle0
Outcome
percentage of small fruite0
Direction
increasede0
Value
3.3- or 5.1-folde0
Comparator
NAAme0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“The combination of BA (as Promalin, 1:1 BA + GA 4+7 ) applied at king bloom (KB) and NAAm (amide) at petal fall increased the percentage of small fruit by 3.3- or 5.1-fold compared with BA or NAAm alone.”

✓ located verbatim in the source · abstract, characters 405–608 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

BA at king bloom oversprayed with NAA at 10 to 12 mm gave similar small fruit results.

Treatment
BA (Promalin) at KB oversprayed with NAA at 10 to 12 mm king fruit diameter (KFD)e0
Outcome
Similar resultse0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Similar results were obtained with BA (Promalin) at KB oversprayed with NAA at 10 to 12 mm king fruit diameter (KFD).”

✓ located verbatim in the source · abstract, characters 609–726 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NAA oversprayed with BA inhibited fruit growth most at 10 to 12 mm king fruit diameter.

Organ / stage
10- to 12-mm KFD stagee0
Treatment
NAA was oversprayed with BAe1
Outcome
fruit growthe0
Direction
greatest inhibitione0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“the greatest inhibition of fruit growth occurred at the 10- to 12-mm KFD stage”

✓ located verbatim in the source · abstract, characters 835–913 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
e1

“When NAA was oversprayed with BA during fruitlet development, i.e., 5 to 6 mm, 10 to 12 mm, and ≈18 mm KFD”

✓ located verbatim in the source · abstract, characters 727–833 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

NAA oversprayed with BA at 18 mm king fruit diameter had no significant effect on fruit growth.

Organ / stage
18 mm KFDe0
Treatment
NAA was oversprayed with BAe1
Outcome
fruit growthe1
Direction
no significant effecte0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“there was no significant effect at 18 mm KFD.”

✓ located verbatim in the source · abstract, characters 919–964 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
e1

“When NAA was oversprayed with BA during fruitlet development, i.e., 5 to 6 mm, 10 to 12 mm, and ≈18 mm KFD, the greatest inhibition of fruit growth occurred at the 10- to 12-mm KFD stage”

✓ located verbatim in the source · abstract, characters 727–913 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Treatment at 5 to 6 mm had intermediate fruit growth inhibition.

Treatment
treatment at the 5- to 6-mm stagee0
Outcome
Inhibitione0
Direction
intermediatee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Inhibition by treatment at the 5- to 6-mm stage was intermediate and trees were overthinned.”

✓ located verbatim in the source · abstract, characters 965–1057 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Treatment at 5 to 6 mm overthinned trees.

Treatment
treatment at the 5- to 6-mm stagee0
Outcome
trees were overthinnede0
Direction
overthinnede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Inhibition by treatment at the 5- to 6-mm stage was intermediate and trees were overthinned.”

✓ located verbatim in the source · abstract, characters 965–1057 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

NAA plus BA growth inhibition in Delicious and Fuji did not depend on crop load.

Material
‘Delicious’ and ‘Fuji’e0
Treatment
NAA + BAe0
Outcome
inhibition of fruit growthe0
Direction
not crop load-dependente0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“NAA + BA inhibition of fruit growth in ‘Delicious’ and ‘Fuji’ was not crop load-dependent.”

✓ located verbatim in the source · abstract, characters 1058–1148 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

NAA plus BA crop load was similar or less than NAA or BA alone.

Treatment
NAA + BAe0
Outcome
crop load (wt basis)e0
Direction
similar or lesse0
Comparator
NAA or BA alonee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“crop load (wt basis) of trees treated with NAA + BA was similar or less than of those treated with NAA or BA alone”

✓ located verbatim in the source · abstract, characters 1169–1283 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NAA plus BA produced 2.5- to 5-fold more small fruit than NAA or BA alone.

Treatment
NAA + BAe1
Outcome
small fruite0
Direction
moree0
Value
2.5- to 5-folde0
Comparator
NAA or BA alonee1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“they produced 2.5- to 5-fold more small fruit.”

✓ located verbatim in the source · abstract, characters 1289–1335 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
e1

“crop load (wt basis) of trees treated with NAA + BA was similar or less than of those treated with NAA or BA alone”

✓ located verbatim in the source · abstract, characters 1169–1283 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NAA plus BA increased fruit per cluster, many failing to develop fully.

Treatment
NAA + BAe0
Outcome
number of fruit per clustere0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“NAA + BA increased the number of fruit per cluster, many of which failed to fully develop.”

✓ located verbatim in the source · abstract, characters 1336–1426 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing BA to NAA ratio increased small fruit formation.

Treatment
ratio of BA to NAA from 25:15 to 125:15 mg·L −1e0
Outcome
small fruit formatione0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Increasing the ratio of BA to NAA from 25:15 to 125:15 mg·L −1 increased small fruit formation.”

✓ located verbatim in the source · abstract, characters 1427–1522 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

GA 4+7 presence in BA formulations did not significantly alter the NAA plus BA response.

Treatment
GA 4+7e0
Outcome
NAA + BA responsee0
Direction
did not significantly affecte0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“The presence of GA 4+7 in commercial formulations of BA (0:100, Maxcel; 10:100, Accel; 50:50, Promalin) did not significantly affect the NAA + BA response.”

✓ located verbatim in the source · abstract, characters 1523–1678 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Combined NAA and BA did not inhibit growth in Golden Delicious and Jonagold.

Material
‘Golden Delicious’ and ‘Jonagold’e0
Treatment
NAA + BA combinatione0
Outcome
Fruit growthe0
Direction
not inhibitede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Fruit growth was not inhibited by the NAA + BA combination in large-fruited ‘Golden Delicious’ and ‘Jonagold’”

✓ located verbatim in the source · abstract, characters 1679–1788 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined NAA and BA increased growth in Elstar and Gala relative to untreated control.

Material
‘Elstar’ and ‘Gala’e0
Treatment
NAA + BA combinatione1
Outcome
Fruit growthe1
Direction
increasede0
Comparator
nontreated controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“was increased in small-fruited ‘Elstar’ and ‘Gala’ compared with the nontreated control.”

✓ located verbatim in the source · abstract, characters 1793–1881 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 53–58 · show in text ↑
e1

“Fruit growth was not inhibited by the NAA + BA combination in large-fruited ‘Golden Delicious’ and ‘Jonagold’”

✓ located verbatim in the source · abstract, characters 1679–1788 · show in text ↑

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30 papers in the same direction as this paper · 12 in the opposite direction

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65 papers: 50 positive, 15 negative or no effect

49 papers in the same direction as this paper · 15 in the opposite direction

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75 papers: 57 positive, 18 negative or no effect

56 papers in the same direction as this paper · 18 in the opposite direction

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Gibberellic acid · molecular: metabolites · Malus domestica (apple)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

1 paper in the same direction as this paper · 1 in the opposite direction

  1. positive
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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.