Claim · model-written summary
Freezing in CO2 snow-ether produced abnormalities more effectively than liquid air.
- Taxon
- flax
Linum usitatissimume1 - Treatment
- CO2 snow-ether mixture (-80⚬ C.)e0
- Outcome
- producing abnormalitiese0
- Direction
- more effectivee0
- Comparator
- freezing them in liquid air (-190⚬ C.)e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Freezing the seeds in a CO2 snow-ether mixture (-80⚬ C.) is somewhat more effective in producing abnormalities than freezing them in liquid air (-190⚬ C.)”
e1“flax seeds”
Title
Some Effects of Low Temperatures on Seeds
W. F. Busse; C. R. Burnham Botanical Gazette 1930. doi:10.1086/334112
Other claims from this paper (8)
- Intervention effect Freezing cotton seeds in liquid air damaged cotyledons and prevented complete emergence.
- Intervention effect Liquid-air treatment did not appear to injure secondary or true leaves of cotton.
- Intervention effect Liquid-air treatment caused double stems and hypocotyls in a large proportion of some flax strains, versus none untreated.
- Observation Other flax strains rarely formed double stems or hypocotyls after liquid-air cooling.
- Association The interval between freezing and planting had little effect on abnormality formation.
- Intervention effect Higher seed moisture before freezing reduced abnormal stems and hypocotyls.
- Intervention effect Seeds at about 10-15 per cent moisture showed no abnormalities after CO2-snow freezing.
- Observation Breeding tests found that freezing-induced abnormalities were not inherited.