Claim · model-written summary
After 17 days at 11 °C, apparent photosynthesis returned to pretreatment rates by day 7.
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSetting
Verbatim
e0“Return of apparent Ps to pretreatment rates was accomplished by day 7 for plants subjected to 17 days of 11 °C.”
Title
R. P. Pharis; H. Hellmers; E. Schuurmans Canadian Journal of Botany 1972. doi:10.1139/b72-250
Other claims from this paper (12)
- Intervention effect At 11 °C, apparent photosynthesis exceeded that at 23 °C for up to 17 days.
- Association The photosynthesis increase was comparable in size to the decrease in dark respiration.
- Intervention effect At 3 °C apparent photosynthesis was little affected for the first three days.
- Intervention effect At 3 °C apparent photosynthesis declined to about 70% of pretreatment by day 10.
- Intervention effect Accounting for dark respiration at 3 °C, actual photosynthesis declined to about 50% by day 10.
- Observation Photosynthesis then declined slowly over time.
- Observation Rapid recovery after transfer back to 23 °C occurred only after at most one day at low temperature.
- Observation After at least four days at 3 °C, apparent photosynthesis recovery reached 80% by day 7.
- Observation After at least four days at 3 °C, apparent photosynthesis recovery reached 90% by day 23.
- Observation Dark respiration initially increased after transfer from 3 to 23 °C.
- Association Dark respiration later decreased at 23 °C as apparent photosynthesis increased.
- Mechanism The authors attribute initial chilling injury to respiratory rather than photosynthetic apparatus.