Paper · 1941 · Botanical Gazette

Effect of Various Growth-Regulating Substances upon Several Species of Plants

Daphne B. Swartz

12
claims
13
verbatim quotes
5
citations
2
research areas
—
Not open access

Abstract

1. Neither vitamin B1 nor naphthaleneacetic acid supplied to chrysanthemum plants in a concentration of 0.1 mg. per liter of complete nutrient solution produced any apparent growth responses or significant difference in dry weight. 2. Chrysanthemum plants receiving naphthaleneacetic acid in a concentration of 0.1 mg. per liter of minus K nutrient solution showed an increase in dry weight over the controls, indicating that the acid can compensate to some extent for the lack of potassium. 3. No significant difference in dry weight occurred between cosmos plants used as controls and those receiving 0.01 mg. of naphthaleneacetic acid, nicotinic acid, or nicotinic acid and vitamin B1 per liter of complete nutrient. 4. Marigold plants showed little variation in dry weight when supplied with nicotinic acid, or with a combination of nicotinic acid and vitamin B1. 5. A significant decrease in total dry weight of the marigold plants supplied with napthaleneacetic acid (0.01 mg. per liter) indicates a retarding effect of the acid on growth. 6. None of the treatments to which the cosmos and marigold plants were subjected resulted in visible effects upon their habit of growth or upon floral initiation.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 12

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Vitamin B1 caused no apparent growth or dry-weight difference in chrysanthemum.

Taxon
chrysanthemumChrysanthemume0
Treatment
vitamin B1e0
Outcome
growth responses or significant difference in dry weighte0
Direction
Neithere0

Not reportedComparator

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

Chrysanthemum
Chrysanthemum · Taxon · picture from its Wikimedia Commons categoryLucia Condac · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Neither vitamin B1 nor naphthaleneacetic acid supplied to chrysanthemum plants in a concentration of 0.1 mg. per liter of complete nutrient solution produced any apparent growth responses or significant difference in dry weight.”

✓ located verbatim in the source · abstract, characters 3–231 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Naphthaleneacetic acid caused no apparent growth or dry-weight difference in chrysanthemum in complete nutrient solution.

Taxon
chrysanthemumChrysanthemume0
Treatment
naphthaleneacetic acide0
Outcome
growth responses or significant difference in dry weighte0
Direction
Neithere0

Not reportedComparator

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

Chrysanthemum
Chrysanthemum · Taxon · picture from its Wikimedia Commons categoryLucia Condac · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Neither vitamin B1 nor naphthaleneacetic acid supplied to chrysanthemum plants in a concentration of 0.1 mg. per liter of complete nutrient solution produced any apparent growth responses or significant difference in dry weight.”

✓ located verbatim in the source · abstract, characters 3–231 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Naphthaleneacetic acid in potassium-deficient solution increased chrysanthemum dry weight over controls.

Taxon
ChrysanthemumChrysanthemume0
Treatment
naphthaleneacetic acid in a concentration of 0.1 mg. per liter of minus K nutrient solutione0
Outcome
dry weighte0
Direction
increasee0
Comparator
controlse0

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

Chrysanthemum
Chrysanthemum · Taxon · picture from its Wikimedia Commons categoryLucia Condac · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Chrysanthemum plants receiving naphthaleneacetic acid in a concentration of 0.1 mg. per liter of minus K nutrient solution showed an increase in dry weight over the controls”

✓ located verbatim in the source · abstract, characters 235–408 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Naphthaleneacetic acid partly compensated for potassium deficiency in chrysanthemum.

Taxon
ChrysanthemumChrysanthemume1
Treatment
naphthaleneacetic acide1
Outcome
compensate to some extent for the lack of potassiume0

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

Chrysanthemum
Chrysanthemum · Taxon · picture from its Wikimedia Commons categoryLucia Condac · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“indicating that the acid can compensate to some extent for the lack of potassium.”

✓ located verbatim in the source · abstract, characters 410–491 · show in text ↑
e1

“Chrysanthemum plants receiving naphthaleneacetic acid”

✓ located verbatim in the source · abstract, characters 235–288 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Naphthaleneacetic acid did not significantly alter cosmos dry weight.

Taxon
cosmosCosmose0
Treatment
0.01 mg. of naphthaleneacetic acide0
Outcome
dry weighte0
Direction
No significant differencee0
Comparator
controlse0

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

Cosmos
Cosmos · Taxon · picture of the genus (one of its species)AG0ST1NH0 ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“No significant difference in dry weight occurred between cosmos plants used as controls and those receiving 0.01 mg. of naphthaleneacetic acid, nicotinic acid, or nicotinic acid and vitamin B1 per liter of complete nutrient.”

✓ located verbatim in the source · abstract, characters 495–719 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nicotinic acid did not significantly alter cosmos dry weight.

Taxon
cosmosCosmose0
Treatment
nicotinic acide0
Outcome
dry weighte0
Direction
No significant differencee0
Comparator
controlse0

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

Cosmos
Cosmos · Taxon · picture of the genus (one of its species)AG0ST1NH0 ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“No significant difference in dry weight occurred between cosmos plants used as controls and those receiving 0.01 mg. of naphthaleneacetic acid, nicotinic acid, or nicotinic acid and vitamin B1 per liter of complete nutrient.”

✓ located verbatim in the source · abstract, characters 495–719 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nicotinic acid with vitamin B1 did not significantly alter cosmos dry weight.

Taxon
cosmosCosmose0
Treatment
nicotinic acid and vitamin B1e0
Outcome
dry weighte0
Direction
No significant differencee0
Comparator
controlse0

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

Cosmos
Cosmos · Taxon · picture of the genus (one of its species)AG0ST1NH0 ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“No significant difference in dry weight occurred between cosmos plants used as controls and those receiving 0.01 mg. of naphthaleneacetic acid, nicotinic acid, or nicotinic acid and vitamin B1 per liter of complete nutrient.”

✓ located verbatim in the source · abstract, characters 495–719 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nicotinic acid produced little variation in marigold dry weight.

Taxon
Marigolde0
Treatment
nicotinic acide0
Outcome
dry weighte0
Direction
little variatione0

Not reportedComparator

Verbatim

e0

“Marigold plants showed little variation in dry weight when supplied with nicotinic acid, or with a combination of nicotinic acid and vitamin B1.”

✓ located verbatim in the source · abstract, characters 723–867 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nicotinic acid with vitamin B1 produced little variation in marigold dry weight.

Taxon
Marigolde0
Treatment
nicotinic acid and vitamin B1e0
Outcome
dry weighte0
Direction
little variatione0

Not reportedComparator

Verbatim

e0

“Marigold plants showed little variation in dry weight when supplied with nicotinic acid, or with a combination of nicotinic acid and vitamin B1.”

✓ located verbatim in the source · abstract, characters 723–867 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Napthaleneacetic acid significantly decreased marigold total dry weight.

Taxon
marigolde0
Treatment
napthaleneacetic acid (0.01 mg. per liter)e0
Outcome
total dry weighte0
Direction
decreasee0

Not reportedComparator

Verbatim

e0

“A significant decrease in total dry weight of the marigold plants supplied with napthaleneacetic acid (0.01 mg. per liter)”

✓ located verbatim in the source · abstract, characters 871–993 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The cosmos treatments caused no visible growth habit or floral initiation effects.

Taxon
cosmosCosmose0
Treatment
treatmentse0
Outcome
habit of growth or upon floral initiatione0
Direction
Nonee0

Not reportedComparator

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

Cosmos
Cosmos · Taxon · picture of the genus (one of its species)AG0ST1NH0 ( talk ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“None of the treatments to which the cosmos and marigold plants were subjected resulted in visible effects upon their habit of growth or upon floral initiation.”

✓ located verbatim in the source · abstract, characters 1049–1208 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The marigold treatments caused no visible growth habit or floral initiation effects.

Taxon
marigolde0
Treatment
treatmentse0
Outcome
habit of growth or upon floral initiatione0
Direction
Nonee0

Not reportedComparator

Verbatim

e0

“None of the treatments to which the cosmos and marigold plants were subjected resulted in visible effects upon their habit of growth or upon floral initiation.”

✓ located verbatim in the source · abstract, characters 1049–1208 · show in text ↑

1-naphthaleneacetic acid · growth · ChrysanthemumPositive and negative results

18 papers: 14 positive, 4 negative or no effect

13 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. negative
  3. negative

14 papers more in this group

See all 18 papers →

fertilization · growth · ChrysanthemumPositive and negative results

52 papers: 49 positive, 3 negative or no effect

48 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. negative

48 papers more in this group

See all 52 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.