Claim · model-written summary
Unripe rose seeds may germinate without after-ripening.
- Taxon
- Rosee0
- Organ / stage
- seedse0
- Outcome
- germinate without any after-ripeninge0
- Qualifier
- harvested unripee0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Verbatim
e0“Rose seeds may germinate without any after-ripening when harvested unripe”
Title
Factors affecting the germination of hybrid rose achenes
De D.P. Vries; L.A.M. Dubois 2015
Other claims from this paper (15)
- Mechanism Hardseededness hampers mature hybrid rose achene germination.
- Mechanism Primary dormancy hampers mature hybrid rose achene germination.
- Mechanism Germination polymorphism hampers mature hybrid rose achene germination.
- Mechanism Hardseededness is attributed to the hard pericarp.
- Mechanism Interrupted after-ripening makes seeds secondarily dormant.
- Observation Secondarily dormant seeds and naked embryos are highly recalcitrant to germination.
- Mechanism After-ripening softens the pericarp.
- Mechanism After-ripening hydrolyses or antagonizes ABA inhibitor.
- Mechanism The ABA:GA ratio controls readiness for germination.
- Intervention effect GA 3 imbibition enhanced even emergence and germination percentage after cold stratification.
- Association Hybrid rose achenes are less resistant to breaking primary dormancy than achenes of many rose species.
- Mechanism Varying temperatures during fruit ripening cause germination polymorphism.
- Association Prolonged pollination periods promote germination polymorphism.
- Association Lower mean temperatures during the last 30 days of fruit ripening deepen primary dormancy.
- Recommendation Breeders should tailor annual stratification and germination protocols to pollination, ripening temperature, storage and stratification conditions.