Abstract
Heterozygotic einkorn wheat seeds were subjected to γ-rays and 14MeV neutrons and the effect of neutrons on the frequency of somatic mutation and fertility in X1 were examined. Up to 900rad of neutrons had no apparent effect on germination rate. Survival rates were slowly decreasing with increasing dosage. A similar tendency was also observed in the average number of tillers, but it was not marked.Somatic mutation rate was calculated on spike basis. An almost linear relation of the mutation curve was observed between mutation frequency and neutron dosage.Very high mutation rate or high RBE values in 14MeV neutrons was obtained in this experiment like in the previous experiment, for instance somatic mutation rate in the γ-ray 8600rad lot was 0.18 and that of neutron 324rad lot was 0.39. RBE value of neutron was very high in higher plants in general.Decrease of fertility was marked with increasing dosage. When the fertility was compared between mutated and non-mutated tillers (including the main stalk) within each individual, average fertility in the former was lower than in the latter. These facts support the view that most of somatic mutation arises from chromosome aberrations.Average number of mutated tillers per individual roughly increased with increasing dosage, as the result of repeated occurrence of the same kind of mutation within the same individual.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Neutron doses up to 900rad had no apparent effect on wheat germination.
- Taxon
- EINKORN WHEAT
Triticum monococcumt0 - Treatment
- Up to 900rad of neutronse0
- Outcome
- germination ratee0
- Direction
- no apparent effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Up to 900rad of neutrons had no apparent effect on germination rate.”
t0“EINKORN WHEAT”
Claim · model-written summary
Wheat survival decreased slowly with neutron dose.
- Taxon
- EINKORN WHEATTriticum monococcumt0
- Treatment
- increasing dosagee0
- Outcome
- Survival ratese0
- Direction
- decreasinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Survival rates were slowly decreasing with increasing dosage.”
t0“EINKORN WHEAT”
Claim · model-written summary
Wheat tiller number also declined with dose, but weakly.
- Taxon
- EINKORN WHEATTriticum monococcumt0
- Treatment
- increasing dosagee1
- Outcome
- average number of tillerse0
- Direction
- decreaseinferrede1
- Qualifier
- not markede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A similar tendency was also observed in the average number of tillers, but it was not marked.”
e1“Survival rates were slowly decreasing with increasing dosage.”
t0“EINKORN WHEAT”
Claim · model-written summary
Wheat somatic mutation frequency rose almost linearly with neutron dosage.
- Taxon
- EINKORN WHEATTriticum monococcumt0
- Treatment
- neutron dosagee0
- Outcome
- mutation frequencye0
- Direction
- increaseinferrede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An almost linear relation of the mutation curve was observed between mutation frequency and neutron dosage.”
t0“EINKORN WHEAT”
Claim · model-written summary
The neutron 324rad lot had somatic mutation rate 0.39, compared with 0.18 in the γ-ray 8600rad lot.
- Taxon
- EINKORN WHEATTriticum monococcumt0
- Treatment
- neutron 324rad lote0
- Outcome
- somatic mutation ratee0
- Direction
- higherinferrede0
- Value
- 0.39e0
- Qualifier
- 0.18e0
- Comparator
- γ-ray 8600rad lote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“somatic mutation rate in the γ-ray 8600rad lot was 0.18 and that of neutron 324rad lot was 0.39”
t0“EINKORN WHEAT”
Claim · model-written summary
Wheat fertility decreased markedly with increasing neutron dosage.
- Taxon
- EINKORN WHEATTriticum monococcumt0
- Treatment
- increasing dosagee0
- Outcome
- fertilitye0
- Direction
- Decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Decrease of fertility was marked with increasing dosage.”
t0“EINKORN WHEAT”
Claim · model-written summary
Mutated wheat tillers had lower average fertility than nonmutated tillers of the same plant.
- Taxon
- EINKORN WHEATTriticum monococcumt0
- Material
- mutatede1
- Outcome
- average fertilitye0
- Direction
- lowere0
- Comparator
- non-mutated tillerse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“average fertility in the former was lower than in the latter”
e1“mutated and non-mutated tillers”
t0“EINKORN WHEAT”
Claim · model-written summary
The authors infer most somatic mutations arise from chromosome aberrations.
- Taxon
- EINKORN WHEATTriticum monococcumt0
- Outcome
- somatic mutatione0
- Qualifier
- chromosome aberrationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“most of somatic mutation arises from chromosome aberrations”
t0“EINKORN WHEAT”
Claim · model-written summary
The number of mutated tillers per wheat plant roughly increased with dose.
- Taxon
- EINKORN WHEATTriticum monococcumt0
- Treatment
- increasing dosagee0
- Outcome
- Average number of mutated tillers per individuale0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average number of mutated tillers per individual roughly increased with increasing dosage”
t0“EINKORN WHEAT”
The same questions in other papers
neutron · growth · Triticum monococcum (einkorn wheat)Results agree
2 papers in the same direction as this paper
- negative
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.