Claim · model-written summary
The photosynthesis increase was comparable in size to the decrease in dark respiration.
Not reportedTaxon
Verbatim
e0“The increase was of the same order of magnitude as the decrease noted in dark respiration (Rs).”
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.
- 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 17 days at 11 °C, apparent photosynthesis returned to pretreatment rates by day 7.
- 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.