Journal article
Radiosensitivity of a recurrently irradiated barley population
Seeds of a barley variety were irradiated with gamma rays for eleven consecutive generations, accumulating a total dose of 120 krad. Changes in radiosensitivity as a consequence of the recurrent irradiation were studied for various seedling and mature plant characters as well as the M2 chlorophyll mutant frequency.Changes in radiosensitivity could not be concluded from the present experiments.
However, the population apparently had increased radiosensitivity for seedling height, dry weight and M2 chlorophyll mutant frequency, and decreased radiosensitivity for sterility of the flowers. However, these apparent changes in radiosensitivity could be explained by the interaction between different characters or/and by physiological heterogeneity among the seeds of the recurrently irradiated population due to pretest dose irradiations.The survival and yield potentials of the recurrently irradiated population suggest that diploid barley without a danger of extinction can be repeatedly irradiated for a practically unlimited number of generations following our procedure for inducing genetic variability.
Language: | English |
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Year: | 1984 |
Pages: | 1-15 |
ISSN: | 18737307 and 00988472 |
Types: | Journal article |
DOI: | 10.1016/0098-8472(84)90055-8 |