Claim · model-written summary
Authors suggest higher root growth at low temperature may protect trees against summer water stress.
- Taxon
- Eucalyptus globulus Labill.
Eucalyptus globuluse0e1e2
Verbatim
e0“higher root growth under low temperatures, as observed in CN5, can be an advantageous trait in Mediterranean-type environments, protecting trees against summer water-stress”
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.
- Observation The hypothesized lower depression of CN5 growth under chilling was not found except in roots.