Paper · 1976 · Journal of the American Society for Horticultural Science

Photosynthetic Supplementary Lighting of Spray Pompon, Chrysanthemum morifolium Ramat1

William J. Carpenter

3
claims
5
verbatim quotes
7
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Photosynthetic lighting of spray pompon chrysanthemums from August to March plantings for 15 or 20 days during the vegetative period were taller at the start of short-day treatment with larger stem diameter than plants photoperiodically lighted and at flowering the plants had significant increases in plant height, fresh weight, and flower number. The largest benefits developed in October to January plantings. The usual fall and winter decline in plant quality of 9- and 10-week response group chrysanthemum cultivars at northern U.S. latitudes was prevented by 20 days of photosynthetic lighting.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗

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Claims 3

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Photosynthetic lighting for 15 or 20 days increased height and stem diameter at the start of short-day treatment versus photoperiodic lighting.

Taxon
chrysanthemumsChrysanthemume0
Treatment
Photosynthetic lightinge0
Outcome
taller at the start of short-day treatment with larger stem diametere0
Direction
tallere0
Qualifier
August to March plantingse0
Comparator
plants photoperiodically lightede0

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

“Photosynthetic lighting of spray pompon chrysanthemums from August to March plantings for 15 or 20 days during the vegetative period were taller at the start of short-day treatment with larger stem diameter than plants photoperiodically lighted”

✓ located verbatim in the source · abstract, characters 9–253 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

At flowering, photosynthetically lighted chrysanthemums had significant increases in height, fresh weight and flower number.

Taxon
Chrysanthemum morifoliumChrysanthemum ×morifoliumt0
Treatment
Photosynthetic Supplementary Lightingt0
Outcome
plant height, fresh weight, and flower numbere0
Direction
increasese0

Not reportedComparator

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

Chrysanthemum x morifolium
Chrysanthemum ×morifolium · Taxon池田正樹 ( talk )masaki ikeda · Public domain · Wikimedia Commons ↗

Verbatim

e0

“at flowering the plants had significant increases in plant height, fresh weight, and flower number”

✓ located verbatim in the source · abstract, characters 258–356 · show in text ↑
t0

“Photosynthetic Supplementary Lighting of Spray Pompon, Chrysanthemum morifolium Ramat1”

✓ located verbatim in the source · title, characters 0–86 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The largest lighting benefits occurred in October to January plantings.

Taxon
chrysanthemumChrysanthemumt0
Outcome
largest benefitse0
Setting
October to January plantingse0

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

“The largest benefits developed in October to January plantings”

✓ located verbatim in the source · abstract, characters 358–420 · show in text ↑
t0

“chrysanthemum cultivars”

✓ located verbatim in the source · abstract, characters 506–529 · show in text ↑

light · growth · Chrysanthemum x morifolium (florist's daisy)Positive and negative results

31 papers: 19 positive, 12 negative or no effect

18 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

27 papers more in this group

See all 31 papers →

light · growth · ChrysanthemumPositive and negative results

63 papers: 47 positive, 16 negative or no effect

46 papers in the same direction as this paper · 15 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive

59 papers more in this group

See all 63 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.