Paper · 1959 · Netherlands Journal of Agricultural Science

The effect of daylength, gibberellin, seed-vernalization and their interaction on spinach.

K. Verkerk; E.V. Yadlin

9
claims
22
verbatim quotes
1
citations
2
research areas
✓
Open access

Abstract

Two varieties of spinach bolted quickly in long days, but neither gibberellin nor vernalization treatment had much effect. In short days bolting was delayed, and the gibberellin and vernalization treatments had a more pronounced effect. Growth was stimulated in all experiments by gibberellin. The response to vernalization increased as conditions favouring growth improved. The effect of each treatment was diminished when it was combined with either of the other treatments.-Lab. Tuinbouwpl., Wageningen. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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 9

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Two spinach varieties bolted quickly in long days.

Material
Two varieties of spinache0
Treatment
long dayse0
Outcome
boltede0
Direction
quicklye0

Not reportedComparator

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

Spinacia oleracea
Spinacia oleracea · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“spinach”

✓ located verbatim in the source · title, characters 82–89 · show in text ↑
e0

“Two varieties of spinach bolted quickly in long days”

✓ located verbatim in the source · abstract, characters 0–52 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Gibberellin had little effect on spinach bolting in long days.

Treatment
gibberelline0
Outcome
boltinge1
Direction
had much effecte0
Qualifier
neithere0

Not reportedComparator

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

Spinacia oleracea
Spinacia oleracea · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“spinach”

✓ located verbatim in the source · title, characters 82–89 · show in text ↑
e0

“neither gibberellin nor vernalization treatment had much effect.”

✓ located verbatim in the source · abstract, characters 58–122 · show in text ↑
e1

“In short days bolting was delayed”

✓ located verbatim in the source · abstract, characters 123–156 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Seed vernalization had little effect on spinach bolting in long days.

Treatment
vernalization treatmente0
Outcome
boltinge1
Direction
had much effecte0
Qualifier
neithere0

Not reportedComparator

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

Spinacia oleracea
Spinacia oleracea · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“spinach”

✓ located verbatim in the source · title, characters 82–89 · show in text ↑
e0

“neither gibberellin nor vernalization treatment had much effect.”

✓ located verbatim in the source · abstract, characters 58–122 · show in text ↑
e1

“In short days bolting was delayed”

✓ located verbatim in the source · abstract, characters 123–156 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Spinach bolting was delayed in short days.

Treatment
short dayse0
Outcome
boltinge0
Direction
delayede0

Not reportedComparator

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

Spinacia oleracea
Spinacia oleracea · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“spinach”

✓ located verbatim in the source · title, characters 82–89 · show in text ↑
e0

“In short days bolting was delayed”

✓ located verbatim in the source · abstract, characters 123–156 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Gibberellin had a more pronounced effect on bolting in short days.

Treatment
gibberelline0
Outcome
boltinge1
Direction
more pronouncede0

Not reportedComparator

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

Spinacia oleracea
Spinacia oleracea · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“spinach”

✓ located verbatim in the source · title, characters 82–89 · show in text ↑
e0

“the gibberellin and vernalization treatments had a more pronounced effect.”

✓ located verbatim in the source · abstract, characters 162–236 · show in text ↑
e1

“In short days bolting was delayed”

✓ located verbatim in the source · abstract, characters 123–156 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Vernalization had a more pronounced effect on bolting in short days.

Treatment
vernalizatione0
Outcome
boltinge1
Direction
more pronouncede0

Not reportedComparator

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

Spinacia oleracea
Spinacia oleracea · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“spinach”

✓ located verbatim in the source · title, characters 82–89 · show in text ↑
e0

“the gibberellin and vernalization treatments had a more pronounced effect.”

✓ located verbatim in the source · abstract, characters 162–236 · show in text ↑
e1

“In short days bolting was delayed”

✓ located verbatim in the source · abstract, characters 123–156 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gibberellin stimulated spinach growth in all experiments.

Treatment
gibberelline0
Outcome
Growthe0
Direction
stimulatede0

Not reportedComparator

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

Spinacia oleracea
Spinacia oleracea · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“spinach”

✓ located verbatim in the source · title, characters 82–89 · show in text ↑
e0

“Growth was stimulated in all experiments by gibberellin.”

✓ located verbatim in the source · abstract, characters 237–293 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Spinach response to vernalization increased as growth-favouring conditions improved.

Treatment
vernalizatione0
Outcome
response to vernalizatione0
Direction
increasede0
Qualifier
conditions favouring growth improvede0

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

Spinacia oleracea
Spinacia oleracea · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“spinach”

✓ located verbatim in the source · title, characters 82–89 · show in text ↑
e0

“The response to vernalization increased as conditions favouring growth improved.”

✓ located verbatim in the source · abstract, characters 294–374 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Each treatment had a diminished effect when combined with either other treatment.

Treatment
combined with either of the other treatmentse0
Outcome
effect of each treatmente0
Direction
diminishede0
Comparator
each treatmente0

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

Spinacia oleracea
Spinacia oleracea · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“spinach”

✓ located verbatim in the source · title, characters 82–89 · show in text ↑
e0

“The effect of each treatment was diminished when it was combined with either of the other treatments.”

✓ located verbatim in the source · abstract, characters 375–476 · show in text ↑

class · phenology · Spinacia oleracea (spinach)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

cold · phenology · Spinacia oleracea (spinach)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
  2. negative
See all 3 papers →

class · growth · Spinacia oleracea (spinach)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 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.