Claim · model-written summary
Upper twin embryos tended to survive better than lower twin embryos.
- Taxon
- Pelargonium
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Pelargoniumt0 - Outcome
- survival of the upper embryoe0
- Direction
- bettere0
- Comparator
- lowere0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“the survival of the upper embryo tends to be better than the lower”
t0“Pelargonium”
Title
The Occurrence and Survival of Twin Embryos in Pelargonium × Hortorum Bailey
A. J. KUBBA; R. A. E. TILNEY-BASSETT Annals of Botany 1980. doi:10.1093/oxfordjournals.aob.a085887
Other claims from this paper (9)
- Observation Twin embryos were rare despite two ovules per carpel.
- Association Twin embryo frequency correlated with variance in cultivar fertility.
- Association Twin embryo frequency did not correlate with low mean fertility.
- Association Plastids had no effect in the analysis of variance.
- Association Cultivars differed significantly, indicating genetic heterogeneity.
- Observation Self and hybrid families supported a genetic basis for twin formation.
- Association Lower parental twin frequency corresponded to fewer offspring families with twins and a lower overall mean.
- Observation A few self and hybrid families reached 16.4 per cent twin frequency.
- Association Twin embryo survival was sometimes poorer than single embryo survival.