Claim · model-written summary
Severe desiccation of spikelets and anthers occurred at low panicle water potentials.
- Taxon
- Rice
Oryza sativat0 - Organ / stage
- spikelets and antherse6
- Outcome
- desiccation of spikelets and antherse6
- Qualifier
- severee6
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Flowering Response of Rice to Water Stress at Anthesis”
e6“At low panicle water potentials, severe desiccation of spikelets and anthers was noted”
Title
Spikelet Sterility and Flowering Response of Rice to Water Stress at Anthesis
I. J. EKANAYAKE; S. K. DE DATTA; P. L. STEPONKUS Annals of Botany 1989. doi:10.1093/oxfordjournals.aob.a087740
Other claims from this paper (10)
- Intervention effect Water deficit at anthesis induced a high percentage of spikelet sterility in rice.
- Intervention effect Water deficit at anthesis reduced grain yield of rice.
- Association IR20 showed a high sensitivity of its flowering response to water stress.
- Intervention effect Low panicle water status had an inhibitory effect on panicle exsertion.
- Intervention effect Low panicle water potentials significantly reduced the number of opened spikelets.
- Intervention effect Spikelet opening in IR20 was completely inhibited below -1.8 MPa panicle water potential.
- Intervention effect Spikelet opening in IRAT 13 was completely inhibited below -2.3 MPa panicle water potential.
- Intervention effect Peak spikelet opening time in a day was not influenced by the stress treatment.
- Intervention effect Spikelets in stressed panicles stayed open for a longer period than in well-watered panicles.
- Mechanism The authors propose that deleterious effects of water deficits on spikelet opening and water loss contributed to reduced spikelet fertility.