Abstract
The influences of photoperiod and nitrogen plug conditioning for summer planting of ‘Seascape’ strawberry (Fragaria x ananassa Duch.) for off-season plasticulture production were evaluated in two separate experiments in New Jersey, USA. In experiment one, plants were conditioned in the greenhouse under ND (natural daylength), LD (ND supplemented with 24 h incandescent radiation (Phillips Duramax Soft White A19 60 watt) or LD7W (ND supplemented with 24 h incandescent radiation (C9, 7 watt bulbs) followed by elevated nitrogen (800 ppm) for 0 to 4 weeks. In experiment two, plants were conditioned in the greenhouse under ND or LD followed by elevated nitrogen (800 ppm) for 4 weeks. In experiment one, flowering was enhanced by LD conditioning. The 24LD7W treatment was more effective than the 24LD treatment in eliciting a long day response at low levels of N (0 and 1 week of elevated N) but not at higher levels of N (2 to 4 weeks of elevated N). No treatment effects were observed for fruit production. In the second experiment, flowering was enhanced by LD or elevated N. Elevated nitrogen during conditioning slightly enhanced yield through 11 September while photoperiod during conditioning did not affect productivity. Runner production was minimal in both experiments.
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Claims 9
Claim · model-written summary
Long-day conditioning enhanced flowering in experiment one.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Material
- ‘Seascape’t0
- Treatment
- LD conditioninge0
- Outcome
- floweringe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“In experiment one, flowering was enhanced by LD conditioning.”
t0“‘Seascape’ strawberry (Fragaria X ananassa Duch.)”
Claim · model-written summary
24LD7W elicited a stronger long-day response than 24LD at low nitrogen conditioning.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- ‘Seascape’t0
- Treatment
- 24LD7W treatmente0
- Outcome
- long day responsee0
- Direction
- more effectivee0
- Qualifier
- low levels of N (0 and 1 week of elevated N)e0
- Comparator
- 24LD treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 24LD7W treatment was more effective than the 24LD treatment in eliciting a long day response at low levels of N (0 and 1 week of elevated N) but not at higher levels of N (2 to 4 weeks of elevated N).”
t0“‘Seascape’ strawberry (Fragaria X ananassa Duch.)”
Claim · model-written summary
The 24LD7W advantage was absent at higher nitrogen levels.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- ‘Seascape’t0
- Treatment
- 24LD7W treatmente0
- Outcome
- long day responsee0
- Qualifier
- higher levels of N (2 to 4 weeks of elevated N)e0
- Comparator
- 24LD treatmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 24LD7W treatment was more effective than the 24LD treatment in eliciting a long day response at low levels of N (0 and 1 week of elevated N) but not at higher levels of N (2 to 4 weeks of elevated N).”
t0“‘Seascape’ strawberry (Fragaria X ananassa Duch.)”
Claim · model-written summary
Treatments did not significantly alter fruit production in experiment one.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- ‘Seascape’t0
- Outcome
- fruit productione0
- Direction
- No treatment effectse0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No treatment effects were observed for fruit production.”
t0“‘Seascape’ strawberry (Fragaria X ananassa Duch.)”
Claim · model-written summary
Long-day conditioning enhanced flowering in experiment two.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- ‘Seascape’t0
- Treatment
- LDe0
- Outcome
- floweringe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the second experiment, flowering was enhanced by LD or elevated N.”
t0“‘Seascape’ strawberry (Fragaria X ananassa Duch.)”
Claim · model-written summary
Elevated nitrogen enhanced flowering in experiment two.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- ‘Seascape’t0
- Treatment
- elevated Ne0
- Outcome
- floweringe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the second experiment, flowering was enhanced by LD or elevated N.”
t0“‘Seascape’ strawberry (Fragaria X ananassa Duch.)”
Claim · model-written summary
Elevated nitrogen slightly increased yield through 11 September.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- ‘Seascape’t0
- Treatment
- Elevated nitrogen during conditioninge0
- Outcome
- yielde0
- Direction
- enhancede0
- Qualifier
- through 11 Septembere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elevated nitrogen during conditioning slightly enhanced yield through 11 September”
t0“‘Seascape’ strawberry (Fragaria X ananassa Duch.)”
Claim · model-written summary
Photoperiod conditioning did not affect productivity.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- ‘Seascape’t0
- Treatment
- photoperiod during conditioninge0
- Outcome
- productivitye0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photoperiod during conditioning did not affect productivity”
t0“‘Seascape’ strawberry (Fragaria X ananassa Duch.)”
Claim · model-written summary
Runner production was minimal in both experiments.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- ‘Seascape’t0
- Outcome
- Runner productione0
- Direction
- minimale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Runner production was minimal in both experiments.”
t0“‘Seascape’ strawberry (Fragaria X ananassa Duch.)”
The same questions in other papers
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- positive
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See all 61 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.