Claim · model-written summary
Total and sulphate sulphur rose with sulphur supply.
- Taxon
- subterranean clover
Trifolium subterraneumt0 - Treatment
- increasing sulphur supplye0
- Outcome
- total sulphur and sulphate sulphure0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentrations of total sulphur and sulphate sulphur in the plant increased with increasing sulphur supply and decreased with plant age or with supplemental nitrogen.”
t0“subterranean clover”
Title
Diagnostic indices for sulphur status of subterranean clover
K Spencer; MB Jones; JR Freney Australian Journal of Agricultural Research 1977. doi:10.1071/ar9770401
Other claims from this paper (17)
- Association Total and sulphate sulphur fell with plant age.
- Intervention effect Supplemental nitrogen lowered total and sulphate sulphur.
- Observation Laminae had higher total sulphur than petioles.
- Observation Sulphate concentrations differed little between laminae and petioles under deficiency.
- Observation Young sulphur-sufficient plants had higher sulphate in petioles.
- Observation Older plants reversed the young-plant petiole versus lamina sulphate pattern.
- Observation Sulphate rose proportionally more than total sulphur with supply.
- Observation Both sulphur fractions changed more in petioles than laminae.
- Observation N/S ratio rose with age or supplemental nitrogen.
- Observation N/S ratio fell as sulphur supply increased.
- Observation Age-related N/S changes were smaller in laminae.
- Observation Petioles had higher N/S under sulphur deficiency.
- Observation Petioles had lower N/S when sulphur was adequate.
- Intervention effect Extra nitrogen lowered critical total and sulphate sulphur concentrations.
- Association Critical sulphur concentrations fell with plant age.
- Association Plant-part maturity had little effect on critical sulphur concentrations.
- Observation N/S ratio varied less than the other two diagnostic indices.