Abstract
Abstract Chrysanthemum morifolium Ramat. cvs. White Marble and Improved Mefo were rooted and grown in cell paks for 34 days under ambient light plus: photoperiodic incandescent night-break lighting 2μE (m −2 s −1 ); 64 μE m −2 s −1 high pressure sodium (HPS) dusk to dawn lighting; or 126 μE m −2 s −1 HPS dusk to dawn lighting. Container-grown chrysanthemums were fertilized with either 200 ppm N, 86 ppm P and 166 ppm K or 300 ppm N, 129 ppm P and 249 ppm K with every irrigation. After 34 long days these plants were transplanted into raised beds, immediately given short day conditions, and treated as a normal commercial crop. The container-grown treatments were compared to each other and to a bench-grown control which received a total of 48 long days. Supplemental HPS lighting increased the net assimilation rate (NAR), plant dry weight, and height of ‘White Marble’ chrysanthemums after 4 weeks. Increased fertility increased NAR and dry weight in the supplemental light treatment but not in the ambient light treatment. Results were less obvious for “Improved Mefo’. The container-grown treatments were ready for harvest 14 to 22 days before the controls. In both cultivars the high light-high fertility treatment was superior to the other container-grown treatments. The ‘White Marble’ high light-high fertility treatment produced higher quality chrysanthemums than the control, while the same ‘Improved Mefo’ treatment produced chrysanthemums slightly inferior to the control.
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Claims 8
Claim · model-written summary
HPS lighting increased net assimilation rate, dry weight, and height in White Marble after four weeks.
- Taxon
- chrysanthemums
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Chrysanthemume0 - Material
- ‘White Marble’e0
- Treatment
- Supplemental HPS lightinge0
- Outcome
- net assimilation rate (NAR), plant dry weight, and heighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“Supplemental HPS lighting increased the net assimilation rate (NAR), plant dry weight, and height of ‘White Marble’ chrysanthemums after 4 weeks.”
Claim · model-written summary
Increased fertility increased NAR and dry weight with supplemental light.
- Taxon
- Chrysanthemum morifolium
Chrysanthemum ×morifoliumt0 - Treatment
- Increased fertilitye0
- Outcome
- NAR and dry weighte0
- Direction
- increasede0
- Qualifier
- supplemental light treatmente0
- Comparator
- ambient light treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased fertility increased NAR and dry weight in the supplemental light treatment but not in the ambient light treatment.”
t0“Chrysanthemum morifolium”
Claim · model-written summary
Increased fertility did not increase NAR and dry weight under ambient light.
- Taxon
- chrysanthemumsChrysanthemumt0
- Treatment
- Increased fertilitye0
- Outcome
- NAR and dry weighte0
- Direction
- note0
- Comparator
- ambient light treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased fertility increased NAR and dry weight in the supplemental light treatment but not in the ambient light treatment.”
t0“chrysanthemums”
Claim · model-written summary
Results were less obvious for Improved Mefo.
- Taxon
- ChrysanthemumsChrysanthemumt0
- Material
- “Improved Mefo’e0
- Outcome
- less obviouse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results were less obvious for “Improved Mefo’.”
t0“Chrysanthemums”
Claim · model-written summary
Container grown treatments reached harvest 14 to 22 days before controls.
- Taxon
- ChrysanthemumsChrysanthemumt0
- Treatment
- container-grown treatmentse0
- Outcome
- ready for harveste0
- Direction
- beforee0
- Value
- 14 to 22 dayse0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The container-grown treatments were ready for harvest 14 to 22 days before the controls.”
t0“Chrysanthemums”
Claim · model-written summary
The high light and high fertility treatment was superior in both cultivars.
- Taxon
- ChrysanthemumsChrysanthemumt0
- Treatment
- high light-high fertility treatmente0
- Outcome
- superiore0
- Direction
- superiore0
- Comparator
- other container-grown treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both cultivars the high light-high fertility treatment was superior to the other container-grown treatments.”
t0“Chrysanthemums”
Claim · model-written summary
High light and high fertility improved White Marble quality over control.
- Taxon
- chrysanthemumsChrysanthemume0
- Material
- ‘White Marble’e0
- Treatment
- high light-high fertility treatmente0
- Outcome
- quality chrysanthemumse0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ‘White Marble’ high light-high fertility treatment produced higher quality chrysanthemums than the control”
Claim · model-written summary
The same treatment yielded slightly inferior Improved Mefo chrysanthemums relative to control.
- Taxon
- chrysanthemumsChrysanthemume0
- Material
- ‘Improved Mefo’e0
- Treatment
- the same ‘Improved Mefo’ treatmente0
- Outcome
- chrysanthemums slightly inferiore0
- Direction
- inferiore0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the same ‘Improved Mefo’ treatment produced chrysanthemums slightly inferior to the control.”
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