Claim · model-written summary
Flower development was somewhat delayed at 23.9 °C day temperature.
- Taxon
- Chrysanthemum morifolium
Chrysanthemum ×morifoliumt0 - Treatment
- 23.9 °C day temperaturee7
- Outcome
- flower developmente7
- Direction
- delayede7
- Qualifier
- somewhate7
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chrysanthemum morifolium cv. Bright Golden Anne”
e7“Flower development was somewhat delayed at 23.9 °C day temperature, and substantially so at 29.4 °C”
Title
A. P. HUGHES; K. E. COCKSHULL Annals of Botany 1972. doi:10.1093/oxfordjournals.aob.a084611
Other claims from this paper (18)
- Intervention effect Final plant weight increased with light over the range 125–375 J cm−2 day−1.
- Intervention effect Final plant weight increased with carbon dioxide over the range 325–900 ppm.
- Association Light and carbon dioxide had a positive interaction on final plant weight.
- Association The light and carbon dioxide interaction on plant weight increased when day temperature was raised to 23.9 °C and somewhat more at 29.4 °C.
- Intervention effect Leaf-area ratio and specific leaf area were reduced by increasing light or carbon dioxide.
- Intervention effect Day temperature had little effect on leaf-area ratio and specific leaf area.
- Observation Leaf-weight ratios were uniform within experiments.
- Intervention effect Mean unit leaf rate was scarcely affected by day temperature over the range investigated.
- Intervention effect Mean unit leaf rate increased with increased light and carbon dioxide concentration.
- Intervention effect Flower development was substantially delayed at 29.4 °C day temperature.
- Intervention effect Lateral branch length was increased at 23.9 °C and excessively so at 29.4 °C.
- Intervention effect Respiratory loss by the whole plant was a smaller proportion of net photosynthetic gain at 29.4 °C than at 18.3 °C.
- Intervention effect Respiratory loss by the whole plant was a smaller proportion of net photosynthetic gain at 1500 ppm CO2 than at 325 ppm.
- Observation If photorespiration equals dark respiration, respiratory losses are in the range of 31–50% of gross gain.
- Intervention effect Specific water contents differed little across the substantial day temperature differences.
- Observation The relationship between flower development and the ratio of flower to total weight was the same for all treatment combinations.
- Observation Mean unit leaf rate differed consistently in absolute value between one experiment and the other two.
- Association Lower unit leaf rates were to a considerable extent compensated for by increased leaf-area ratios.