Paper · 1956 · Journal of the Japanese Society for Horticultural Science

On the physiology and utilization of vitamin B1 in garden crops. V

T. IIJIMA

7
claims
15
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

The present paper reports the effects of light, temperature, sugar and fertilizers on the thiamin activity for the earlier growth of sweetpotatoes when sprayed on the leaves. The results obtained were as follows: 1. Thiamin application was more effective for the growth in the dark than in the light. 2. Under temperatures unfavorable for the growth, thiamin was more effective than under favorable. 3. Combined application of thiamin with sugar was more effective for the growth of root than single application of thiamin or sugar, whereas the growth of top was retarded by the single spray of sugar. 4. When applied in optimum quantity by soil application, phosphorus was the most effective of the three manurial elements for the thiamin activity, but when applied surplusly, nitrogen which was otherwise the most unfavorable for the growth was the most effective.

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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Thiamin application was more effective for growth in darkness than in light.

Taxon
sweetpotatoesIpomoea batatase1
Treatment
Thiamin applicatione0
Outcome
growthe0
Direction
more effectivee0
Qualifier
in the darke0
Comparator
in the lighte0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Thiamin application was more effective for the growth in the dark than in the light”

✓ located verbatim in the source · abstract, characters 216–299 · show in text ↑
e1

“sweetpotatoes”

✓ located verbatim in the source · abstract, characters 133–146 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Thiamin was more effective under temperatures unfavorable for growth than under favorable temperatures.

Taxon
sweetpotatoesIpomoea batatase1
Treatment
thiamine0
Outcome
growthe0
Direction
more effectivee0
Qualifier
temperatures unfavorable for the growthe0
Comparator
under favorablee0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Under temperatures unfavorable for the growth, thiamin was more effective than under favorable”

✓ located verbatim in the source · abstract, characters 304–398 · show in text ↑
e1

“sweetpotatoes”

✓ located verbatim in the source · abstract, characters 133–146 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Thiamin plus sugar promoted root growth more than either alone.

Taxon
sweetpotatoesIpomoea batatase1
Organ / stage
roote0
Treatment
Combined application of thiamin with sugare0
Outcome
growth of roote0
Direction
more effectivee0
Comparator
single application of thiamin or sugare0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Combined application of thiamin with sugar was more effective for the growth of root than single application of thiamin or sugar”

✓ located verbatim in the source · abstract, characters 403–531 · show in text ↑
e1

“sweetpotatoes”

✓ located verbatim in the source · abstract, characters 133–146 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sugar spray alone retarded top growth.

Taxon
sweetpotatoesIpomoea batatase1
Organ / stage
tope0
Treatment
single spray of sugare0
Outcome
growth of tope0
Direction
retardede0

Not reportedComparator

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the growth of top was retarded by the single spray of sugar”

✓ located verbatim in the source · abstract, characters 541–600 · show in text ↑
e1

“sweetpotatoes”

✓ located verbatim in the source · abstract, characters 133–146 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At optimum soil application, phosphorus was the most effective manurial element for thiamin activity.

Taxon
sweetpotatoesIpomoea batatase1
Treatment
phosphoruse0
Outcome
thiamin activitye0
Direction
most effectivee0
Qualifier
optimum quantity by soil applicatione0
Comparator
three manurial elementse0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“When applied in optimum quantity by soil application, phosphorus was the most effective of the three manurial elements for the thiamin activity”

✓ located verbatim in the source · abstract, characters 605–748 · show in text ↑
e1

“sweetpotatoes”

✓ located verbatim in the source · abstract, characters 133–146 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At surplus soil application, nitrogen was most effective for thiamin activity.

Taxon
sweetpotatoesIpomoea batatase2
Treatment
nitrogene0
Outcome
thiamin activitye1
Direction
most effectivee0
Qualifier
when applied surpluslye0

Not reportedComparator

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“when applied surplusly, nitrogen which was otherwise the most unfavorable for the growth was the most effective”

✓ located verbatim in the source · abstract, characters 754–865 · show in text ↑
e1

“for the thiamin activity, but when applied surplusly”

✓ located verbatim in the source · abstract, characters 724–776 · show in text ↑
e2

“sweetpotatoes”

✓ located verbatim in the source · abstract, characters 133–146 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Nitrogen was otherwise the most unfavorable element for growth.

Taxon
sweetpotatoesIpomoea batatase1
Treatment
nitrogene0
Outcome
growthe0
Direction
most unfavorablee0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“nitrogen which was otherwise the most unfavorable for the growth”

✓ located verbatim in the source · abstract, characters 778–842 · show in text ↑
e1

“sweetpotatoes”

✓ located verbatim in the source · abstract, characters 133–146 · show in text ↑

nitrogen · molecular: metabolites · Ipomoea batatas (sweet potato)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive
See all 4 papers →

application · growth · Ipomoea batatas (sweet potato)Positive and negative results

13 papers: 11 positive, 2 negative or no effect

1 paper in the same direction as this paper · 11 in the opposite direction

  1. positive
  2. positive
  3. positive

9 papers more in this group

See all 13 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.