Claim · model-written summary
The hypothesized lower depression of CN5 growth under chilling was not found except in roots.
- Taxon
- Eucalyptus globulus Labill.
Eucalyptus globuluse0e1e2
Verbatim
e0“Except for roots, the hypothesis of a lower depression of growth rate in the drought-resistant clone under chilling was not verified”
e1“Eucalyptus globulus Labill.”
e2“Chilling (10/5°C, day/night) led to a general decrease in growth of both clones and significant reductions in root hydraulic conductivity, rate of photosynthesis and stomatal conductance in comparison to plants grown at control temperature (24/16°C).”
Title
Responses to chilling of two Eucalyptus globulus clones with contrasting drought resistance
Filipe Costa e Silva; Alla Shvaleva; M. Helena Almeida; et al. Functional Plant Biology 2007. doi:10.1071/fp07080
Other claims from this paper (13)
- Intervention effect Chilling reduced growth in both clones.
- Intervention effect Chilling significantly reduced root hydraulic conductivity.
- Intervention effect Chilling significantly reduced photosynthesis.
- Intervention effect Chilling significantly reduced stomatal conductance.
- Observation CN5 maintained higher root growth than ST51 at both temperatures.
- Observation CN5 had a lower leaf to root area ratio than ST51 at both temperatures.
- Observation ST51 allocated more carbon to foliage than CN5 at both temperatures.
- Observation ST51 had higher hydraulic conductance than CN5 at both temperatures.
- Intervention effect Chilling acclimation maintained higher hydraulic conductivity than unacclimated exposure.
- Observation Under chilling, CN5 had higher water status than ST51.
- Observation Under chilling, CN5 had higher anthocyanin concentration than ST51.
- Observation Under chilling, root growth was inhibited more strongly in ST51.
- Mechanism Authors suggest higher root growth at low temperature may protect trees against summer water stress.