Claim · model-written summary
Embryos within each seed competed until a dominant embryo survived.
- Taxon
- Pinus ponderosa
Pinus ponderosat0 - Outcome
- embryonic selectione0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the embryos within each seed being engaged in a competitive struggle for survival-a period of embryonic selection”
t0“Pinus ponderosa”
Title
John T. Buchholz Botanical Gazette 1946. doi:10.1086/335409
Other claims from this paper (8)
- Observation Embryos showed little differentiation for about five weeks.
- Observation The dominant embryo grew rapidly and differentiated all organs over 10 to 12 days.
- Observation Seed ripening occurred over a few weeks with little change in embryo size.
- Observation Embryos collected on the same date occupied diverse developmental stages.
- Observation Average embryo growth during differentiation was about half a stage daily.
- Association Embryo growth was slower in the smallest seeds.
- Association At shoot tip differentiation and cotyledon initiation, embryo volume related closely to endosperm and seed volumes.
- Association Seed size, embryo size, endosperm size, and cotyledon number were correlated.