Radiosensitivity in Plants IV. Experiments with Several Mutant Strains of Einkorn Wheat
Three kinds of chlorophyll mutants amd three morphological mutants of einkorn wheat were subjected to gamma and x rays. Their radiation susceptibility was examined in X₁ and in X₂seedlings. Radiation sensitivity of mutant strains in the X₁ generation, concerning germination or survival rate, plant height, and fertility was not much different from that of the normals. In the X₂ generation the frequency of chlorophyll mutation in mutant strains was the same when their germination rate was good. It became low when the perceptage of nongerminating heads was high. Addition of radiation injury or additional gene mutation might be the cause of the variable viability in the X₂. Mutation spectrum of the mutated strains seems to be similar to that of the normal strain. About half of the chlorophyll mutants were albina. Mutations in one major gene seem to bring about a similar response to radiation as that of the normals. (auth)
- Research Organization:
- National Inst. of Genetics, Japan
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-001265
- OSTI ID:
- 4123376
- Journal Information:
- Idengaku Zasshi, Journal Name: Idengaku Zasshi Journal Issue: 4 Vol. 35; ISSN 0021-504X
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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