Claim · model-written summary
Daily exchange of hypoxic gas around the seeds partially alleviated the hypoxia inhibition of germination.
- Taxon
- Datura stramonium L.
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Datura stramoniume0 - Treatment
- daily exchange of hypoxic gase2
- Outcome
- inhibitione2
- Direction
- partially alleviatede2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“effect of hypoxia on seed germination of Datura stramonium L.”
e2“This inhibition was partially alleviated by daily exchange of hypoxic gas surrounding the seeds during incubation”
Title
Effect of hypoxia on buried weed seed germination
S. BENVENUTI; M. MACCHIA Weed Research 1995. doi:10.1111/j.1365-3180.1995.tb01629.x
Other claims from this paper (9)
- Intervention effect Hypoxia decreased germination capacity and germination rate of Datura stramonium seeds.
- Intervention effect Scarification maintained a higher germination capacity of Datura stramonium seeds under low oxygen availability.
- Intervention effect Oxygen deficiency decreased the respiratory capacity of Datura stramonium seeds.
- Mechanism Oxygen deficiency probably decreased respiratory capacity, which was compensated for by induced fermentation metabolism.
- Mechanism The depth-derived inhibition of germination is postulated to result from difficulty in eliminating toxic fermentation products rather than from oxygen deficiency itself.
- Association The difficulty in eliminating toxic fermentation products was proportional to the degree of hypoxia.
- Intervention effect Daily nitrogen flushing partially eliminated the hypoxia inhibition of germination, even at low external oxygen availability.
- Intervention effect Incubation for several days under completely anaerobic conditions induced secondary dormancy.
- Mechanism Secondary dormancy under anaerobic conditions is probably an ecological adaptation that prevents germination in unfavourable conditions.