Claim · model-written summary
Old leaves maintained open stomata at lower leaf water potentials.
- Taxon
- Citrus sinensis
Citrus sinensise0 - Organ / stage
- Old leavese5
- Outcome
- maintaining open stomatae5
- Qualifier
- at lower leaf water potentialse5
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Valencia’ orange [Citrus sinensis (L.) Osbeck]”
e5“Old leaves were capable of maintaining open stomata at lower leaf water potentials”
Title
Growth Rate and Water Relations of Citrus Leaf Flushes*
J. P. SYVERTSEN; M. L. SMITH; J. C. ALLEN Annals of Botany 1981. doi:10.1093/oxfordjournals.aob.a086004
Other claims from this paper (9)
- Observation New flush leaves had lower specific leaf weights than comparably exposed old leaves.
- Observation New flush leaves had lower midday leaf water potentials than comparably exposed old leaves.
- Observation Spring and summer flush new leaves had higher osmotic potentials than old leaves.
- Observation The differences between new and old leaves became non-significant as new leaves matured.
- Observation Water-stressed new leaves reached zero turgor in summer.
- Observation Stomatal conductance began to decrease in water-stressed new leaves at higher leaf water potentials than in old leaves.
- Observation Opened flowers and new flush leaves lost more water on a dry weight basis than flower buds, fruit or mature leaves.
- Association Water stress from high water loss of new tissues could reduce flowering and fruit set.
- Mechanism Differences in leaf water potential and stomatal conductance are attributed to leaf turgor maintenance by decreases in leaf osmotic potential as leaves mature.