Claim · model-written summary
Mean base temperature was 1.4°C.
- Taxon
- onion
Allium cepae1 - Outcome
- mean base temperaturee0
- Value
- 1.4°Ce0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean base temperature was 1.4°C”
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 The temperature relations were similar across germination percentiles of three seed lots.
- 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.