Claim · model-written summary
Plantlets had higher root respiration rates than greenhouse-grown seedlings.
- Taxon
- Douglas-fir
Pseudotsuga menziesiie0 - Outcome
- root respiratione0
- Direction
- highere0
- Comparator
- greenhouse-grown seedlingse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plantlets of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) had lower rates of net CO(2) uptake and higher rates of root respiration than greenhouse-grown seedlings”
Title
Ex vitro photosynthetic activity in plantlets of tissue-cultured Douglas-fir
G. H. Mohammed; S. L. Gillies; W. E. Vidaver Tree Physiology 1992. doi:10.1093/treephys/10.4.403
Other claims from this paper (9)
- Observation Plantlets had lower net CO2 uptake rates than greenhouse-grown seedlings.
- Association Plantlets had lower photosynthetic efficiency at high photosynthetic photon flux density.
- Association Plantlets showed a significant depression of CO2 uptake under water stress.
- Association The ability of plantlets to utilize high irradiance and to photosynthesize under water stress was enhanced by many roots.
- Association CO2 uptake rate increased with increasing root number in plantlets.
- Association CO2 uptake rate decreased as the needle surface area to root surface area ratio decreased.
- Association High root number was associated with low apparent rates of shoot and root respiration.
- Association Low needle surface area to root surface area ratio was associated with low apparent rates of shoot and root respiration.
- Association Elongated roots were associated with low apparent rates of shoot and root respiration.