Claim · model-written summary
The temperature relations were similar across germination percentiles of three seed lots.
- Taxon
- onion
Allium cepae1 - Material
- three contrasting seed lotse0
- Outcome
- these relations were similare0
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these relations were similar among seeds from several percentiles of the germinating populations of three contrasting seed lots”
e1“Cotyledon length in onion ( Allium cepa , cv. White Lisbon)”
Title
Seed quality, cotyledon elongation at suboptimal temperatures, and the yield of onion
T. R. Wheeler; R. H. Ellis Seed Science Research 1991. doi:10.1017/s0960258500000647
Other claims from this paper (7)
- Association Onion cotyledon length was linearly related to time until hook formation and then rose exponentially.
- Association Cotyledon elongation rate was linearly related to temperature in both phases.
- Observation Mean base temperature was 1.4°C.
- Method / resource Thermal time relations closely predicted cotyledon elongation at two suboptimal temperatures.
- Association Seed quality had no detected effect on mean plant weight, mean bulb diameter, or variation in bulb diameter.
- Observation The authors conclude that onion seedling growth rate is independent of environmentally induced seed vigour differences.
- Mechanism Any seed vigour effect on plant size or crop yield at a given density is attributed to time to germinate.