Claim · model-written summary
Continuous selection did not improve sugar yield or sugar percentage.
- Taxon
- Sugar-Beet
Beta vulgaris subsp. vulgarist0 - Treatment
- continuous selectione0
- Outcome
- yield or percentage of sugare0
- Direction
- No improvemente0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No improvement in yield or percentage of sugar was obtained by continuous selection”
t0“Sugar-Beet”
Title
Some Recent Investigations in Sugar-Beet Breeding
Frederick J. Pritchard Botanical Gazette 1916. doi:10.1086/331958
Other claims from this paper (11)
- Observation Individual beet root size and sugar content differences showed no evidence of inheritance.
- Association Sugar percentage or quantity in ordinary-sized roots did not correlate with seed yield.
- Association Seed yield did not correlate with mean progeny sugar percentage.
- Method / resource Within-family fluctuation exceeded real family differences, but replication distinguished them.
- Observation Areas within an apparently uniform field differed by 2 per cent sugar.
- Association Sugar percentage and sugar yield varied independently among sugar-beet rows.
- Recommendation The authors recommend grading progeny rows by both sugar percentage and sugar yield or extractable sugar yield.
- Association Mean root weight per row increased with sugar yield.
- Association Mean root weight per row decreased with sugar percentage.
- Intervention effect Stopping selection for one generation caused no deterioration in sugar percentage and an apparent gain.
- Observation Good and poor beet families both transmitted average qualities.