Claim · model-written summary
In unfertilized small-flowered cultivars an abscission zone above the upper node activated and the flower remained attached after browning.
- Taxon
- Rosa hybrida L.
Rosa hybrid cultivare1 - Outcome
- abscission zone just above the uppermost node became activee0
- Qualifier
- unfertilized flowerse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in unfertilized flowers of the latter group of cultivars an abscission zone just above the uppermost node became active and all parts above this node (pedicel and flower) turned brown and desiccated, though remained attached for more than a month”
e1“Rosa hybrida L.”
Title
W van Doorn Annals of Botany 1995. doi:10.1006/anbo.1995.1130
Other claims from this paper (7)
- Observation At about 20 °C petal abscission time was the same in uncut and cut stems.
- Observation Time between petal unfolding and abscission varied by cultivar from 12 to 35 days.
- Association Time to abscission correlated inversely with flower diameter.
- Observation Large-flowered cultivars shed petals without visible desiccation.
- Observation Small-flowered cultivars shed partially or fully desiccated petals.
- Intervention effect Fertilization did not change abscission time in the named large-flowered cultivars.
- Observation In fertilized small-flowered Motrea, Europa, and Carolien roses, petals fell.