Paper · 1975 · New Phytologist

SCAPE ELONGATION IN NARCISSUS: THE INFLUENCE OF FLORAL ORGANS

GORDON R. HANKS; A. R. REES

8
claims
20
verbatim quotes
9
citations
2
research areas
✓
Open access

Abstract

SUMMARY To study the effects of floral organs on scape growth of narcissus, the spathe, perianth parts, paracorolla, anthers and gynoecium were excised from the bud in all practicable combinations, and growth regulators were applied to decapitated scapes. Spathe removal induced earlier flowering, and by the third day after treatment had reduced scape growth to 88% of that of intact controls. The removal of other parts (alone or in combination) had no additional effects on scape growth, except for gynoecium removal which reduced growth to 43% of that of intact controls after 3 days. Scape growth continued in all treated plants, however, and by day 23 the decapitated plants had grown 79% as much as the intact controls. The effect of gynoecium removal could largely be replaced by applied auxin; gibberellic acid was partly effective in restoring scape growth.

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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 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Removing the spathe induced earlier flowering.

Taxon
NARCISSUSNarcissust0
Treatment
Spathe removale0
Outcome
floweringe0
Direction
earliere0

Not reportedComparator

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

Narcissus
Narcissus · Taxon · picture of the genus (one of its species)John O'Neill · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Spathe removal induced earlier flowering”

✓ located verbatim in the source · abstract, characters 256–296 · show in text ↑
t0

“NARCISSUS”

✓ located verbatim in the source · title, characters 20–29 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Removing the spathe reduced scape growth to 88% of intact controls by day three.

Taxon
NARCISSUSNarcissust0
Treatment
Spathe removale1
Outcome
scape growthe0
Direction
reducede0
Value
88%e0
Qualifier
third day after treatmente0
Comparator
intact controlse0

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

Narcissus
Narcissus · Taxon · picture of the genus (one of its species)John O'Neill · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“by the third day after treatment had reduced scape growth to 88% of that of intact controls”

✓ located verbatim in the source · abstract, characters 302–393 · show in text ↑
e1

“Spathe removal induced earlier flowering”

✓ located verbatim in the source · abstract, characters 256–296 · show in text ↑
t0

“NARCISSUS”

✓ located verbatim in the source · title, characters 20–29 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Removing other floral parts had no additional effect on scape growth.

Taxon
NARCISSUSNarcissust0
Treatment
removal of other partse0
Outcome
scape growthe0
Direction
no additional effectse0

Not reportedComparator

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

Narcissus
Narcissus · Taxon · picture of the genus (one of its species)John O'Neill · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The removal of other parts (alone or in combination) had no additional effects on scape growth”

✓ located verbatim in the source · abstract, characters 395–489 · show in text ↑
t0

“NARCISSUS”

✓ located verbatim in the source · title, characters 20–29 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Gynoecium removal reduced scape growth to 43% of intact controls after three days.

Taxon
NARCISSUSNarcissust0
Treatment
gynoecium removale0
Outcome
scape growthe1
Direction
reducede0
Value
43%e0
Comparator
intact controlse0

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

Narcissus
Narcissus · Taxon · picture of the genus (one of its species)John O'Neill · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“gynoecium removal which reduced growth to 43% of that of intact controls after 3 days”

✓ located verbatim in the source · abstract, characters 502–587 · show in text ↑
e1

“additional effects on scape growth”

✓ located verbatim in the source · abstract, characters 455–489 · show in text ↑
t0

“NARCISSUS”

✓ located verbatim in the source · title, characters 20–29 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Scape growth continued in every treated plant.

Taxon
NARCISSUSNarcissust0
Outcome
Scape growth continued in all treated plantse0

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

Narcissus
Narcissus · Taxon · picture of the genus (one of its species)John O'Neill · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Scape growth continued in all treated plants”

✓ located verbatim in the source · abstract, characters 589–633 · show in text ↑
t0

“NARCISSUS”

✓ located verbatim in the source · title, characters 20–29 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

By day 23, decapitated scapes reached 79% of intact-control growth.

Taxon
NARCISSUSNarcissust0
Treatment
decapitated plantse0
Outcome
Scape growthe1
Direction
lowerinferrede0
Value
79%e0
Comparator
intact controlse0

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

Narcissus
Narcissus · Taxon · picture of the genus (one of its species)John O'Neill · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“by day 23 the decapitated plants had grown 79% as much as the intact controls”

✓ located verbatim in the source · abstract, characters 648–725 · show in text ↑
e1

“Scape growth”

✓ located verbatim in the source · abstract, characters 589–601 · show in text ↑
t0

“NARCISSUS”

✓ located verbatim in the source · title, characters 20–29 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Applied auxin largely replaced the effect of gynoecium removal on scape growth.

Taxon
NARCISSUSNarcissust0
Treatment
applied auxine0
Outcome
scape growthe1
Direction
replacede0
Comparator
gynoecium removale0

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

Narcissus
Narcissus · Taxon · picture of the genus (one of its species)John O'Neill · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect of gynoecium removal could largely be replaced by applied auxin”

✓ located verbatim in the source · abstract, characters 727–801 · show in text ↑
e1

“effective in restoring scape growth”

✓ located verbatim in the source · abstract, characters 831–866 · show in text ↑
t0

“NARCISSUS”

✓ located verbatim in the source · title, characters 20–29 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gibberellic acid partly restored scape growth.

Taxon
NARCISSUSNarcissust0
Treatment
gibberellic acide0
Outcome
scape growthe0
Direction
restoringe0

Not reportedComparator

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

Narcissus
Narcissus · Taxon · picture of the genus (one of its species)John O'Neill · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“gibberellic acid was partly effective in restoring scape growth”

✓ located verbatim in the source · abstract, characters 803–866 · show in text ↑
t0

“NARCISSUS”

✓ located verbatim in the source · title, characters 20–29 · show in text ↑

Gibberellic acid · growth · NarcissusResults agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

class · growth · NarcissusResults agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  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.