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.
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Claims 3
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
- chrysanthemums
Chrysanthemume0 - 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.
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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”
Claim · model-written summary
At flowering, photosynthetically lighted chrysanthemums had significant increases in height, fresh weight and flower number.
- Taxon
- Chrysanthemum morifolium
Chrysanthemum ×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.

Verbatim
e0“at flowering the plants had significant increases in plant height, fresh weight, and flower number”
t0“Photosynthetic Supplementary Lighting of Spray Pompon, Chrysanthemum morifolium Ramat1”
Claim · model-written summary
The largest lighting benefits occurred in October to January plantings.
- Taxon
- chrysanthemum
Chrysanthemumt0 - Outcome
- largest benefitse0
- Setting
- October to January plantingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“The largest benefits developed in October to January plantings”
t0“chrysanthemum cultivars”
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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.