Claim · model-written summary
Plants under the higher average daily temperature produced more leaves.
- Taxon
- Doritaenopsis×Doritaenopsist0
- Treatment
- higher average daily temperature (ADT)e1
- Outcome
- leavese1
- Direction
- moree1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
t0“Doritaenopsis Hybrid Orchid”
e1“plants under the higher average daily temperature (ADT) produced more leaves”
Title
Effects of Reversed Day/Night Temperatures on a Doritaenopsis Hybrid Orchid
Yin-Tung Wang HortScience 2004. doi:10.21273/hortsci.39.4.834c
Other claims from this paper (18)
- Intervention effect Plants at 30/25 °C had the largest leaf span and total new leaf length.
- Observation At 30/25 °C, plants produced 5.0 new leaves.
- Observation At 25/30 °C, plants produced 4.7 new leaves.
- Observation At 25/20 °C, plants produced 3.6 new leaves.
- Observation At 20/25 °C, plants produced 2.8 new leaves.
- Intervention effect Cool days and warm nights reduced leaf span compared with 25/30 °C, particularly at 20/25 °C.
- Intervention effect Cool days and warm nights reduced leaf growth compared with 25/30 °C.
- Observation Plants at the lower average daily temperature had a smaller leaf length-to-width ratio.
- Observation Plants at the lower average daily temperature produced the more desirable oval leaf shape.
- Intervention effect At 20/25 °C, 14 of 15 plants bloomed.
- Intervention effect At 25/20 °C, only 5 plants flowered.
- Intervention effect No plants flowered at 30/25 or 25/30 °C.
- Intervention effect All plants at 15/25 °C bloomed, while none in the other treatments flowered.
- Intervention effect Long-term exposure to 15/25 °C resulted in slow leaf production.
- Intervention effect Long-term exposure to 15/25 °C produced small, undesirable leaves.
- Recommendation Nights 10-5 °C warmer than days in the 20-15 °C range are not desirable for rapid vegetative growth.
- Recommendation Cool days and warm nights may be used to effectively induce flowering.
- Intervention effect Within a given average daily temperature, cooler days produced shorter leaves.