Claim · model-written summary
CO2 assimilation rate was reduced by salinity.
- Taxon
- Citrus sinensis
Citrus sinensist0 - Treatment
- salinitye0
- Outcome
- COz assimilation ratee0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Citrus sinensis (L.) Osbeck”
e0“COz assimilation rate ( A ) was reduced by salinity”
Title
Jon; P. E. riedemann 2005
Other claims from this paper (14)
- Intervention effect Foliage of Valencia scions grafted to Trifoliata had higher chloride than foliage of scions on Cleopatra mandarin.
- Intervention effect Foliage of Valencia scions grafted to Trifoliata had lower sodium than foliage of scions on Cleopatra mandarin.
- Intervention effect Leaf water potential declined with salinisation.
- Intervention effect Salt accumulation in leaves on both rootstocks contributed to more negative osmotic pressures.
- Intervention effect Turgor was maintained at or above the level in control leaves despite salinisation, through salt accumulation in leaves.
- Association Salinity inhibited CO2 assimilation more in leaves on Cleopatra mandarin than in those on Trifoliata.
- Observation Reductions in CO2 assimilation and stomatal conductance were usually in step with each other.
- Observation Intercellular partial pressure of CO2 changed little despite large changes in gas exchange.
- Observation The impact of salt on CO2 assimilation was expressed to a greater degree at high intercellular CO2 partial pressure.
- Intervention effect The extent of the photosynthetic response to salt at high intercellular CO2 partial pressure was independent of light level during growth.
- Observation Room temperature chlorophyll a fluorescence induction kinetics remained unaltered.
- Intervention effect Scions grafted to Trifoliata showed a slower onset of photosynthetic dysfunction after salinisation than scions on Cleopatra mandarin.
- Observation Photosynthetic sensitivity to increased leaf chloride appeared to diminish on Trifoliata.
- Mechanism The authors attribute the rootstock effect on scion performance to a superior capacity of Trifoliata to exclude sodium ions from Valencia scions.