Paper · 1941 · Botanical Gazette

Physiological and Chemical Responses of Bean and Tomato Plants to Alpha Naphthalene Acetamide and Phenylacetic Acid

Charles L. Hamner

10
claims
12
verbatim quotes
12
citations
2
research areas
—
Not open access

Abstract

1. Alpha naphthalene acetamide when applied in the nutrient solution results in less top growth and increased root growth of Red Kidney bean plant. 2. Relative percentage contents of calcium, phosphorus, and nitrogen in the bean plant are increased by the presence of naphthalene acetamide in the nutrient solution. 3. The xylem and phloem mature earlier and are more extensive in the roots of bean plants treated with naphthalene acetamide in the nutrient solution. 4. Spraying the tops of bean plants with naphthalene acetamide did not result in increase of calcium or phosphorus content in the top leaves or stems, or result in increased dry weight of the plants. 5. Phenylacetic acid when supplied in the nutrient solution to bean plants did not significantly increase the total dry weight. 6. Phenylacetic acid when supplied in the nutrient solution to Bonny Best tomato may increase top and root growth in young plants. The evidence, however, is not conclusive.

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Claims 10

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Naphthalene acetamide in nutrient solution reduced top growth of Red Kidney bean.

Taxon
beane0
Material
Red Kidneye0
Treatment
Alpha naphthalene acetamidee0
Outcome
top growthe0
Direction
lesse0

Not reportedOrgan / stageComparator

Verbatim

e0

“Alpha naphthalene acetamide when applied in the nutrient solution results in less top growth and increased root growth of Red Kidney bean plant”

✓ located verbatim in the source · abstract, characters 3–146 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Naphthalene acetamide in nutrient solution increased root growth of Red Kidney bean.

Taxon
beane0
Material
Red Kidneye0
Treatment
Alpha naphthalene acetamidee0
Outcome
root growthe0
Direction
increasede0

Not reportedOrgan / stageComparator

Verbatim

e0

“Alpha naphthalene acetamide when applied in the nutrient solution results in less top growth and increased root growth of Red Kidney bean plant”

✓ located verbatim in the source · abstract, characters 3–146 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Naphthalene acetamide increased relative calcium, phosphorus, and nitrogen contents in bean.

Taxon
beane0
Treatment
naphthalene acetamidee0
Outcome
Relative percentage contents of calcium, phosphorus, and nitrogene0
Direction
increasede0

Not reportedMaterialOrgan / stageComparator

Verbatim

e0

“Relative percentage contents of calcium, phosphorus, and nitrogen in the bean plant are increased by the presence of naphthalene acetamide in the nutrient solution”

✓ located verbatim in the source · abstract, characters 151–314 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Naphthalene acetamide caused earlier xylem and phloem maturation in bean roots.

Taxon
beane0
Organ / stage
rootse0
Treatment
naphthalene acetamidee0
Outcome
xylem and phloeme0
Direction
earliere0

Not reportedMaterialComparator

Verbatim

e0

“The xylem and phloem mature earlier and are more extensive in the roots of bean plants treated with naphthalene acetamide in the nutrient solution”

✓ located verbatim in the source · abstract, characters 319–465 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Naphthalene acetamide caused more extensive xylem and phloem in bean roots.

Taxon
beane0
Organ / stage
rootse0
Treatment
naphthalene acetamidee0
Outcome
xylem and phloeme0
Direction
more extensivee0

Not reportedMaterialComparator

Verbatim

e0

“The xylem and phloem mature earlier and are more extensive in the roots of bean plants treated with naphthalene acetamide in the nutrient solution”

✓ located verbatim in the source · abstract, characters 319–465 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Spraying bean tops with naphthalene acetamide did not increase calcium or phosphorus content in top leaves or stems.

Taxon
beane0
Organ / stage
top leaves or stemse0
Treatment
naphthalene acetamidee0
Outcome
calcium or phosphorus contente0
Direction
did not result in increasee0

Not reportedMaterialComparator

Verbatim

e0

“Spraying the tops of bean plants with naphthalene acetamide did not result in increase of calcium or phosphorus content in the top leaves or stems, or result in increased dry weight of the plants”

✓ located verbatim in the source · abstract, characters 470–665 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Spraying bean tops with naphthalene acetamide did not increase plant dry weight.

Taxon
beane0
Treatment
naphthalene acetamidee0
Outcome
dry weighte0
Direction
did not result in increasee0

Not reportedMaterialOrgan / stageComparator

Verbatim

e0

“Spraying the tops of bean plants with naphthalene acetamide did not result in increase of calcium or phosphorus content in the top leaves or stems, or result in increased dry weight of the plants”

✓ located verbatim in the source · abstract, characters 470–665 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Phenylacetic acid in nutrient solution did not significantly increase bean total dry weight.

Taxon
beane0
Treatment
Phenylacetic acide0
Outcome
total dry weighte0
Direction
did not significantly increasee0

Not reportedMaterialOrgan / stageComparator

Verbatim

e0

“Phenylacetic acid when supplied in the nutrient solution to bean plants did not significantly increase the total dry weight”

✓ located verbatim in the source · abstract, characters 670–793 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Phenylacetic acid in nutrient solution may increase young Bonny Best tomato top growth, but evidence is inconclusive.

Material
Bonny Beste0
Treatment
Phenylacetic acide0
Outcome
tope0
Direction
increasee0

Not reportedOrgan / stageComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Phenylacetic acid when supplied in the nutrient solution to Bonny Best tomato may increase top and root growth in young plants. The evidence, however, is not conclusive”

✓ located verbatim in the source · abstract, characters 798–966 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 49–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Phenylacetic acid in nutrient solution may increase young Bonny Best tomato root growth, but evidence is inconclusive.

Material
Bonny Beste0
Treatment
Phenylacetic acide0
Outcome
root growthe0
Direction
increasee0

Not reportedOrgan / stageComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Phenylacetic acid when supplied in the nutrient solution to Bonny Best tomato may increase top and root growth in young plants. The evidence, however, is not conclusive”

✓ located verbatim in the source · abstract, characters 798–966 · show in text ↑
t0

“Tomato Plants”

✓ located verbatim in the source · title, characters 49–62 · show in text ↑

naphthalene · growth · Phaseolus vulgaris (common bean)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

acetamide · growth · Phaseolus vulgaris (common bean)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

2 in the opposite direction

  1. positive
  2. positive
See all 3 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.