Claim · model-written summary
The proportion of mutations preserving fertility was greater after spike-emergence than meiosis irradiation.
- Taxon
- barley
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Hordeum vulgaret0 - Treatment
- spike emergencee1
- Outcome
- relative proportion of mutations not reducing fertilitye0
- Direction
- greatere0
- Comparator
- material irradiated at meiosise0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“the relative proportion of mutations not reducing fertility was greater than in the material irradiated at meiosis”
t0“barley”
e1“In the material irradiated at spike emergence, most mutations, too, were those affecting fertility but not to the same extent as after treatments of meiosis”
Title
Effects of acute gamma irradiation in growing barley plots
THORSTEN HERMELIN Hereditas 2009. doi:10.1111/j.1601-5223.1970.tb02319.x
Other claims from this paper (9)
- Intervention effect Irradiation at meiosis had the strongest effects in the treatment year.
- Intervention effect Irradiation at tillering had comparatively small effects, attributed to counterselection.
- Association Mutation yield per irradiation unit decreased with increasing dose.
- Intervention effect Meiosis irradiation produced comparatively many mutants, mostly affecting seed set.
- Association In surviving material, mutation yield per radiation unit appeared to decrease with dose.
- Intervention effect Spike-emergence irradiation mostly produced fertility-affecting mutations, less so than meiosis irradiation.
- Intervention effect Mutation yield per unit radiation at spike emergence did not decline in the same way as at tillering and meiosis.
- Intervention effect Selection against induced changes was less pronounced after spike-emergence treatment.
- Recommendation The authors prefer spike-emergence irradiation methodologically and practically.