Claim · model-written summary
Grazing increased stomatal conductance by 88–169%.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Grazinge1
- Outcome
- stomatal conductancee1
- Direction
- increasede1
- Value
- 88–169%e1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L.)”
e1“Grazing reduced leaf mass per unit area, increased stomatal conductance and increased intercellular CO2 concentrations (Ci) by 36–38%, 88–169% and 17–20%, respectively”
Title
Grazing winter wheat relieves plant water stress and transiently enhances photosynthesis
Matthew T. Harrison; Walter M. Kelman; Andrew D. Moore; et al. Functional Plant Biology 2010. doi:10.1071/fp10040
Other claims from this paper (11)
- Intervention effect Photosynthetic CO2 assimilation was unchanged during grazing.
- Intervention effect Assimilation rose by 33–68% for 2 to 4 weeks after grazing ended versus ungrazed leaves.
- Intervention effect Grazing reduced leaf mass per unit area by 36–38%.
- Intervention effect Grazing increased intercellular CO2 concentrations (Ci) by 17–20%.
- Intervention effect Grazing did not alter leaf nitrogen content per unit area.
- Mechanism The photosynthesis model required up to 53% greater Rubisco activity to explain increased assimilation after grazing.
- Mechanism The modeled intercellular CO2 increase could raise assimilation by at most 13%.
- Association Greater Rubisco activity was associated with partial relief of leaf water stress.
- Intervention effect Grazed plants had 68% higher leaf water potential.
- Mechanism Reduced canopy evaporative demand and leaf area index, and increased soil rainfall infiltration were attributed as causes of higher leaf water potential.
- Recommendation Grazing rain-fed grain cereals may be adjusted to relieve water stress and enhance leaf photosynthesis.