Claim · model-written summary
Empty pollen grains and granular unstained pollen were frequent irregularities.
- Outcome
- empty pollen grains and granular, unstained pollene0
VacciniumNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Frequent irregularities observed were empty pollen grains and granular, unstained pollen”
t0“Vaccinium”
Title
A Survey of Pollen Characteristics in Certain Vaccinium Species1
L. E. Cockerham; G. J. Galletta Journal of the American Society for Horticultural Science 1976. doi:10.21273/jashs.101.6.671
Other claims from this paper (11)
- Observation Tetraploid pollen was potentially more fertile than diploid pollen.
- Observation Hexaploid pollen stainability did not differ from diploids or tetraploids.
- Observation Four pollen viability classes were established among species.
- Observation Almost all studied species produced unreduced pollen grains.
- Observation Mean tetraploid pollen diameter exceeded diploid pollen diameter by 11%.
- Observation Mean hexaploid pollen diameter exceeded tetraploid diameter by 11%.
- Method / resource Normal pollen diameter ranges were calculated for the three ploidy levels as a possible taxonomic tool.
- Mechanism Genetic differences appeared to account for most interclonal and interspecific variation in pollen stainability and unreduced pollen frequency.
- Mechanism The authors inferred those pollen irregularities represented early postmeiotic abortions.
- Observation Meiotic pairing and segregation were essentially normal.
- Observation A few multivalents or pseudo multivalents were seen in hexaploids.