Claim · model-written summary
Only medium-infused plants continued kernel development to maturity.
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Verbatim
e0“only those infused with the medium during low ψ w continued kernel development to maturity”
Title
Stem Infusion of Liquid Culture Medium Prevents Reproductive Failure of Maize at Low Water Potential
Mark G. Boyle; John S. Boyer; Page W. Morgan Crop Science 1991. doi:10.2135/cropsci1991.0011183x003100050033x
Other claims from this paper (12)
- Observation Well-watered maize leaves had photosynthesis near 20 μmol m −2 s −1 and water potential of −0.6 MPa.
- Intervention effect After withholding water, upper leaf water potential fell to −1.6 to −1.8 MPa.
- Observation After withholding water, upper leaf photosynthesis remained near 20 μmol m −2 s −1.
- Intervention effect Stem infusion of culture medium prevented reproductive failure during water deficit.
- Observation Some medium-infused plants had grain yields approaching controls.
- Intervention effect Water infusion did not prevent nearly complete reproductive failure under dehydration.
- Observation Non-infused dehydrated maize had nearly complete reproductive failure.
- Observation Photosynthesis recovered after rehydration in all plants exposed to low water potential.
- Observation Plant growth regulators were unnecessary for an effective medium.
- Mechanism Assimilate supply was identified as limiting maize reproduction near anthesis.
- Recommendation The authors suggest changing assimilate storage or phenology to improve drought tolerance.
- Method / resource The whole-plant system provides a model for studying reproductive failure at low water potential.