Claim · model-written summary
Water deficit did not affect grain water potential or osmotic potential during the first 29 days after anthesis.
- Treatment
- this treatmente0
- Outcome
- grain water potential or osmotic potentiale0
- Direction
- did not affecte0
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“this treatment did not affect grain water potential or osmotic potential during the first 29 days after anthesis”
Title
Effects of Water Deficit on Endosperm Starch Granules and on Grain Physiology of Wheat and Barley.
A Brooks; CF Jenner; D Aspinall Functional Plant Biology 1982. doi:10.1071/pp9820423
Other claims from this paper (14)
- Intervention effect In wheat and barley, grain dry matter accumulation was initially unaffected by water deficit.
- Intervention effect In wheat and barley, grain dry matter accumulation terminated earlier in stressed plants than in controls.
- Intervention effect Water deficit did not affect endosperm cell number.
- Intervention effect In water-stressed wheat, the number of B-type starch granules per endosperm and the size of the largest A-type granules were significantly less than in control plants.
- Intervention effect A-type starch granule number in wheat endosperm was unaffected by water deficit.
- Intervention effect Water potentials of wheat flag leaves and bracts were reduced by water deficit.
- Intervention effect In barley, neither grain nor bract water potential was affected by stress during the first 29 days.
- Intervention effect Stress significantly reduced the amount of sucrose per wheat grain.
- Intervention effect Stress did not reduce the amount of sucrose per unit of wheat grain dry matter or water content.
- Intervention effect In barley grains, stress did not reduce the relative or absolute sucrose contents.
- Intervention effect Maturing grains eventually lost water and endosperm volume declined, with the water loss occurring earlier in stressed plants.
- Intervention effect Protein as a proportion of grain dry weight was higher in stressed plants than in controls.
- Intervention effect Protein and amino acid content per grain were unaffected by water deficit.
- Mechanism The authors considered it unlikely that the earlier cessation of grain growth on stressed plants was caused by insufficient assimilate.