Paper · 1971 · HortScience

Supplemental Lighting Effects on Newly Planted and Cut-back Greenhouse Roses1

W. J. Carpenter; R. C. Rodriguez

8
claims
14
verbatim quotes
19
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Supplemental lighting nightly during late spring and early summer with Wide Spectrum Gro-Lux fluorescent lamps at 29 lamp watts/ft 2 has been found to improve the development of newly planted dormant and cut-back rose plants. Lighted plants of cvs Electra, Red American Beauty and Forever Yours produced a higher percentage of flowering stems than unlighted plants. Plants receiving supplemental lighting had significant increases in the no. of flowering stems developing after a hard pinch, and generally significant increases in bottom breaks. Cut flower production was increased 18-41% after plant development had been completed, but for ‘Electra’ this increase was in flower stem lengths less than 15 inches.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Supplemental lighting improved development of newly planted and cut-back roses.

Taxon
rose plantse0
Treatment
Supplemental lighting nightly during late spring and early summer with Wide Spectrum Gro-Lux fluorescent lamps at 29 lamp watts/ft 2e0
Outcome
developmente0
Direction
improvee0

Not reportedComparator

Verbatim

e0

“Supplemental lighting nightly during late spring and early summer with Wide Spectrum Gro-Lux fluorescent lamps at 29 lamp watts/ft 2 has been found to improve the development of newly planted dormant and cut-back rose plants.”

✓ located verbatim in the source · abstract, characters 9–234 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Lighted Electra roses had a higher percentage of flowering stems than unlighted plants.

Taxon
plantsViridiplantaee0
Material
Electrae0
Treatment
Lightede0
Outcome
percentage of flowering stemse0
Direction
highere0
Comparator
unlighted plantse0

Verbatim

e0

“Lighted plants of cvs Electra, Red American Beauty and Forever Yours produced a higher percentage of flowering stems than unlighted plants.”

✓ located verbatim in the source · abstract, characters 235–374 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Lighted Red American Beauty roses had a higher percentage of flowering stems than unlighted plants.

Taxon
plantsViridiplantaee0
Material
Red American Beautye0
Treatment
Lightede0
Outcome
percentage of flowering stemse0
Direction
highere0
Comparator
unlighted plantse0

Verbatim

e0

“Lighted plants of cvs Electra, Red American Beauty and Forever Yours produced a higher percentage of flowering stems than unlighted plants.”

✓ located verbatim in the source · abstract, characters 235–374 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Lighted Forever Yours roses had a higher percentage of flowering stems than unlighted plants.

Taxon
plantsViridiplantaee0
Material
Forever Yourse0
Treatment
Lightede0
Outcome
percentage of flowering stemse0
Direction
highere0
Comparator
unlighted plantse0

Verbatim

e0

“Lighted plants of cvs Electra, Red American Beauty and Forever Yours produced a higher percentage of flowering stems than unlighted plants.”

✓ located verbatim in the source · abstract, characters 235–374 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Supplemental light significantly increased flowering stems after a hard pinch.

Taxon
Rosest0
Treatment
supplemental lightinge0
Outcome
no. of flowering stems developing after a hard pinche0
Direction
increasese0

Not reportedComparator

Verbatim

t0

“Greenhouse Roses”

✓ located verbatim in the source · title, characters 60–76 · show in text ↑
e0

“Plants receiving supplemental lighting had significant increases in the no. of flowering stems developing after a hard pinch”

✓ located verbatim in the source · abstract, characters 375–499 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Supplemental light generally significantly increased bottom breaks.

Taxon
Rosest0
Treatment
supplemental lightinge1
Outcome
bottom breakse0
Direction
increasese0
Qualifier
generallye0

Not reportedComparator

Verbatim

t0

“Greenhouse Roses”

✓ located verbatim in the source · title, characters 60–76 · show in text ↑
e0

“generally significant increases in bottom breaks”

✓ located verbatim in the source · abstract, characters 505–553 · show in text ↑
e1

“Plants receiving supplemental lighting”

✓ located verbatim in the source · abstract, characters 375–413 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

After development, supplemental light increased cut flower production by 18-41%.

Taxon
Rosest0
Treatment
supplemental lightinge1
Outcome
Cut flower productione0
Direction
increasede0
Value
18-41%e0
Qualifier
after plant development had been completede0

Not reportedComparator

Verbatim

t0

“Greenhouse Roses”

✓ located verbatim in the source · title, characters 60–76 · show in text ↑
e0

“Cut flower production was increased 18-41% after plant development had been completed”

✓ located verbatim in the source · abstract, characters 555–640 · show in text ↑
e1

“supplemental lighting”

✓ located verbatim in the source · abstract, characters 392–413 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

For Electra, the production increase was in stems shorter than 15 inches.

Taxon
Rosest0
Material
Electrae0
Outcome
flower stem lengths less than 15 inchese0
Direction
increasee0

Verbatim

t0

“Greenhouse Roses”

✓ located verbatim in the source · title, characters 60–76 · show in text ↑
e0

“but for ‘Electra’ this increase was in flower stem lengths less than 15 inches.”

✓ located verbatim in the source · abstract, characters 642–721 · show in text ↑

light · phenology · Viridiplantae (plants)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

5 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

light · yield · RosaPositive and negative results

15 papers: 12 positive, 3 negative or no effect

11 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

11 papers more in this group

See all 15 papers →

light · phenology · RosaPositive and negative results

15 papers: 12 positive, 3 negative or no effect

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

  1. negative
  2. no effect
  3. no effect

11 papers more in this group

See all 15 papers →

light · growth · RosaPositive and negative results

28 papers: 23 positive, 5 negative or no effect

22 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. no effect
  3. no effect

24 papers more in this group

See all 28 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.