Abstract
Abstract The effects of end-of-day red and far-red light on postharvest leaf chlorosis of potted roses were investigated. Rosa × hybrida L. ‘Meijikatar’ (Tradename: Orange Sunblaze) and ‘Confection’ plants were treated with 30 minutes of red light (600–700 nm) or far-red light (700–780 nm) at the end of each daily photoperiod throughout production. At harvest, plants were placed in storage for 5 days at 16°C (61°F). ‘Meijikatar’ plants treated with end-of-day far-red light had more leaf chlorosis than plants treated with end-of-day red light or those which served as controls. ‘Confection’ plants treated with end-of-day far-red light had more leaf chlorosis than plants treated with end-of-day red light. ‘Meijikatar’ plants were treated in the greenhouse at the end of each photoperiod with 1 hour of incandescent or fluorescent light, with control plants receiving natural greenhouse end-of-day light, and then placed into storage. Plants treated with end-of-day incandescent light were taller than plants treated-with end-of-day fluorescent light or controls. After simulated storage, plants treated with end-of-day incandescent light had the most etiolated shoots. Light treatments had no significant effect on the amount of leaf chlorosis 5 days after removal from simulated storage.
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Claims 5
Claim · model-written summary
Far-red light increased Meijikatar leaf chlorosis versus red light and controls.
- Taxon
- Rosa × hybrida L.
Rosa hybrid cultivart0 - Material
- ‘Meijikatar’e0
- Treatment
- end-of-day far-red lighte0
- Outcome
- leaf chlorosise0
- Direction
- moree0
- Comparator
- end-of-day red light or those which served as controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Meijikatar’ plants treated with end-of-day far-red light had more leaf chlorosis than plants treated with end-of-day red light or those which served as controls.”
t0“Rosa × hybrida L. ‘Meijikatar’”
Claim · model-written summary
Far-red light increased Confection leaf chlorosis versus red light.
- Taxon
- Rosa × hybrida L.Rosa hybrid cultivart0
- Material
- ‘Confection’e0
- Treatment
- end-of-day far-red lighte0
- Outcome
- leaf chlorosise0
- Direction
- moree0
- Comparator
- end-of-day red lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Confection’ plants treated with end-of-day far-red light had more leaf chlorosis than plants treated with end-of-day red light.”
t0“Rosa × hybrida L. ‘Meijikatar’”
Claim · model-written summary
End-of-day incandescent light produced taller plants than fluorescent light or controls.
- Taxon
- Rosa × hybrida L.Rosa hybrid cultivart0
- Treatment
- end-of-day incandescent lighte0
- Outcome
- tallere0
- Direction
- tallere0
- Comparator
- end-of-day fluorescent light or controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants treated with end-of-day incandescent light were taller than plants treated-with end-of-day fluorescent light or controls.”
t0“Rosa × hybrida L. ‘Meijikatar’”
Claim · model-written summary
Incandescent light produced the most etiolated shoots after simulated storage.
- Taxon
- Rosa × hybrida L.Rosa hybrid cultivart0
- Treatment
- end-of-day incandescent lighte0
- Outcome
- etiolated shootse0
- Direction
- moste0
- Qualifier
- After simulated storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After simulated storage, plants treated with end-of-day incandescent light had the most etiolated shoots.”
t0“Rosa × hybrida L. ‘Meijikatar’”
Claim · model-written summary
Light treatments did not significantly change leaf chlorosis five days after storage.
- Taxon
- Rosa × hybrida L.Rosa hybrid cultivart0
- Treatment
- Light treatmentse0
- Outcome
- amount of leaf chlorosise0
- Direction
- no significant effecte0
- Qualifier
- 5 days after removal from simulated storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light treatments had no significant effect on the amount of leaf chlorosis 5 days after removal from simulated storage.”
t0“Rosa × hybrida L. ‘Meijikatar’”
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