Paper · 1994 · HortScience

509 PB 257 SPECTRAL FILTERS AND GROWING SEASON INFLUENCE GROWTH AND CARBOHYDRATE METABOLISM OF CHRYSANTHEMUM

Nihal C. Rajapakse; John W. Kelly

10
claims
20
verbatim quotes
0
citations
3
research areas
✓
Open access

Abstract

The interaction of light quality and growing season on growth and carbohydrate metabolism of chrysanthemum was evaluated using 6% CuSO 4 and water as spectral filters. Light transmitted through the CuSO 4 filter significantly reduced plant height and internode length compared to control plants regardless of the season. Light transmitted through CuSO 4 filters delayed flowering. Total number of flowers was not affected but plants grown under CuSO 4 filter had smaller flowers than those grown under the control filter. Light transmitted through CuSO 4 filter reduced leaf and stem soluble sugar and starch concentrations regardless of the growing season. However, me magnitude of reduction was greater in spring than in fall-grown plants. Stems of fall-grown plants had mom starch deposition than spring-grown plants under both filters. The reduction of leaf and stem carbohydrate content (per organ basis) was greater than that of concentrations due to reduced stem elongation and total dry matter accumulation. Filters with specific spectral characteristics can be used as alternative means of controlling height and producing compact plants in the greenhouses regardless of the growing season. However, flowering should be evaluated with individual flower crops as flowering response may interact with the quality of light and growing season.

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Claims 10

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

CuSO 4 filtered light reduced plant height and internode length across seasons.

Taxon
CHRYSANTHEMUMChrysanthemumt0
Treatment
CuSO 4 filtere0
Outcome
plant height and internode lengthe0
Direction
reducede0
Comparator
control plantse0

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

“Light transmitted through the CuSO 4 filter significantly reduced plant height and internode length compared to control plants regardless of the season.”

✓ located verbatim in the source · abstract, characters 168–320 · show in text ↑
t0

“CHRYSANTHEMUM”

✓ located verbatim in the source · title, characters 95–108 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

CuSO 4 filtered light delayed flowering.

Taxon
CHRYSANTHEMUMChrysanthemumt0
Treatment
CuSO 4 filterse0
Outcome
floweringe0
Direction
delayede0

Not reportedComparator

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

“Light transmitted through CuSO 4 filters delayed flowering.”

✓ located verbatim in the source · abstract, characters 321–380 · show in text ↑
t0

“CHRYSANTHEMUM”

✓ located verbatim in the source · title, characters 95–108 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

CuSO 4 filter did not affect flower number.

Taxon
CHRYSANTHEMUMChrysanthemumt0
Treatment
CuSO 4 filtere0
Outcome
Total number of flowerse0
Direction
not affectede0
Comparator
control filtere0

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

“Total number of flowers was not affected but plants grown under CuSO 4 filter had smaller flowers than those grown under the control filter.”

✓ located verbatim in the source · abstract, characters 381–521 · show in text ↑
t0

“CHRYSANTHEMUM”

✓ located verbatim in the source · title, characters 95–108 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

CuSO 4 filter produced smaller flowers than the control filter.

Taxon
CHRYSANTHEMUMChrysanthemumt0
Treatment
CuSO 4 filtere0
Outcome
flowerse0
Direction
smallere0
Comparator
control filtere0

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

“Total number of flowers was not affected but plants grown under CuSO 4 filter had smaller flowers than those grown under the control filter.”

✓ located verbatim in the source · abstract, characters 381–521 · show in text ↑
t0

“CHRYSANTHEMUM”

✓ located verbatim in the source · title, characters 95–108 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

CuSO 4 filter reduced leaf and stem soluble sugar and starch concentrations.

Taxon
CHRYSANTHEMUMChrysanthemumt0
Treatment
CuSO 4 filtere0
Outcome
leaf and stem soluble sugar and starch concentrationse0
Direction
reducede0

Not reportedComparator

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

“Light transmitted through CuSO 4 filter reduced leaf and stem soluble sugar and starch concentrations regardless of the growing season.”

✓ located verbatim in the source · abstract, characters 522–657 · show in text ↑
t0

“CHRYSANTHEMUM”

✓ located verbatim in the source · title, characters 95–108 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Carbohydrate reduction was greater in spring than fall.

Taxon
CHRYSANTHEMUMChrysanthemumt0
Outcome
magnitude of reductione0
Direction
greatere0
Comparator
fall-grown plantse0
Setting
springe0

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

“me magnitude of reduction was greater in spring than in fall-grown plants”

✓ located verbatim in the source · abstract, characters 667–740 · show in text ↑
t0

“CHRYSANTHEMUM”

✓ located verbatim in the source · title, characters 95–108 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Fall-grown stems deposited more starch than spring-grown stems under both filters.

Taxon
CHRYSANTHEMUMChrysanthemumt0
Organ / stage
Stemse0
Outcome
starch depositione0
Comparator
spring-grown plantse0
Setting
fall-growne0

Not reportedDirection

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 ↗

Schema note from the model: Source text has OCR damage in the comparison word.

Verbatim

e0

“Stems of fall-grown plants had mom starch deposition than spring-grown plants under both filters.”

✓ located verbatim in the source · abstract, characters 742–839 · show in text ↑
t0

“CHRYSANTHEMUM”

✓ located verbatim in the source · title, characters 95–108 · show in text ↑
Mechanismobservedoriginal resultnegativemeasured

Claim · model-written summary

Leaf and stem carbohydrate content fell more than concentration due to reduced growth.

Taxon
CHRYSANTHEMUMChrysanthemumt0
Organ / stage
leaf and steme0
Outcome
carbohydrate contente0
Direction
greatere0
Qualifier
due to reduced stem elongation and total dry matter accumulatione0

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 reduction of leaf and stem carbohydrate content (per organ basis) was greater than that of concentrations due to reduced stem elongation and total dry matter accumulation.”

✓ located verbatim in the source · abstract, characters 840–1015 · show in text ↑
t0

“CHRYSANTHEMUM”

✓ located verbatim in the source · title, characters 95–108 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Spectral filters can control height and produce compact greenhouse plants across seasons.

Taxon
CHRYSANTHEMUMChrysanthemumt0
Outcome
controlling height and producing compact plantse0
Setting
greenhousese0

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

“Filters with specific spectral characteristics can be used as alternative means of controlling height and producing compact plants in the greenhouses regardless of the growing season.”

✓ located verbatim in the source · abstract, characters 1016–1199 · show in text ↑
t0

“CHRYSANTHEMUM”

✓ located verbatim in the source · title, characters 95–108 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Flowering responses to spectral filters should be assessed separately for each crop.

Taxon
CHRYSANTHEMUMChrysanthemumt0
Outcome
flowering should be evaluated with individual flower cropse0
Qualifier
flowering response may interact with the quality of light and growing seasone0

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

“flowering should be evaluated with individual flower crops as flowering response may interact with the quality of light and growing season.”

✓ located verbatim in the source · abstract, characters 1209–1348 · show in text ↑
t0

“CHRYSANTHEMUM”

✓ located verbatim in the source · title, characters 95–108 · show in text ↑

copper(II) sulfate · growth · ChrysanthemumPositive and negative results

10 papers: 4 positive, 6 negative or no effect

3 papers in the same direction as this paper · 6 in the opposite direction

  1. negative
  2. negative
  3. negative

6 papers more in this group

See all 10 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.