Claim · model-written summary
Triploid tutsan showed extremely low male fertility.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Verbatim
e0“Triploid plants demonstrated extremely low male fertility and no measurable female fertility (no viable seed production).”
e1“tutsan (Hypericum androsaemum L.)”
Title
Richard T. Olsen NCSU Libraries Repository (North Carolina State University Libraries) 2007
Other claims from this paper (19)
- Intervention effect Oryzalin treatment induced tetraploids and cytochimeras in xChitalpa.
- Observation Diploid cultivar pollen was nonviable.
- Observation Polyploid pollen stained and germinated as well as progenitor pollen.
- Observation Self pollination of polyploid xChitalpa yielded tetraploids.
- Observation Crosses of polyploid xChitalpa with C. bignonioides yielded triploids.
- Observation Reciprocal crosses with Chilopsis taxa failed.
- Observation Triploid embryo germination was greatest at seven weeks under the specified culture medium.
- Observation Tetraploid embryo germination was greatest at seven weeks under the specified culture medium.
- Observation Triploids from Chilopsis linearis crosses germinated below 5%.
- Observation North American Catalpa taxa were moderate to highly susceptible to powdery mildew.
- Observation Chilopsis taxa were moderate to highly susceptible to powdery mildew.
- Observation xChitalpa taxa were moderate to highly susceptible to powdery mildew.
- Observation Chinese Catalpa species were resistant to powdery mildew.
- Observation West Indian Macrocatalpa taxa were resistant to powdery mildew.
- Observation North American and Chinese Catalpa hybrids varied in powdery mildew susceptibility.
- Observation Catalpa, Chilopsis and xChitalpa taxa did not differ in larval survival or growth.
- Observation Diploid tutsan foliage traits fit a recessive unlinked gene model.
- Observation Tetraploid tutsan had more variegated progeny, with intermediate segregation ratios.
- Observation Triploid tutsan showed no measurable female fertility or viable seed production.