Claim · model-written summary
Under slow soil drying, the initially more rapid decline of osmotic potential was sufficient to totally maintain turgor.
- Taxon
- Rice
Oryza sativat0 - Treatment
- slow soil drying conditions (20 to 22 days)e1
- Outcome
- totally maintain turgore1
- Direction
- sufficiente1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Osmotic Adjustment in Rice”
e1“Under slow soil drying conditions (20 to 22 days), the reduction of osmotic potential, after an initially more rapid decline which was sufficient to totally maintain turgor, was similar to that found under the rapid drying conditions”
Title
Dynamics of Osmotic Adjustment in Rice1
J. M. Cutler; K. W. Shahan; P. L. Steponkus Crop Science 1980. doi:10.2135/cropsci1980.0011183x002000030005x
Other claims from this paper (10)
- Intervention effect As water deficits developed, leaf osmotic potential of unstressed upland rice plants decreased more rapidly than expected from dehydration alone.
- Intervention effect Loss of turgor in upland rice leaves under water deficit was delayed by active osmotic adjustment.
- Association Under rapid soil drying, leaf osmotic potential declined nearly linearly with water potential until water potential reached about −12 bars.
- Intervention effect Under rapid soil drying, the rate of osmotic adjustment was not sufficient to totally maintain turgor.
- Intervention effect The reduction of osmotic potential under slow soil drying was similar to that under rapid soil drying.
- Observation The final extent of active reduction of osmotic potential was identical under rapid and slow soil drying.
- Observation Minimum fully hydrated osmotic potentials of upland rice were approximately −18 bars.
- Intervention effect Plants exposed to more than one cycle of stress with 2 days of recovery showed no active osmotic adjustment beyond the minimum during subsequent stress.
- Observation There is a limit to the extent of osmotic adjustment in rice that is independent of the rate of stress development and stress duration.
- Association The extent of osmotic adjustment in rice depended on stress history and stress intensity.