IRRADIATION EXPERIMENT WITH ULTRA SHORT WAVE IN EINKORN WHEAT

概要

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Dormant seeds of Triticum monococcum were exposed to ultra short electric waves. Impulse waves were applied (wave length 10m) to remove the heat effect, at 5, 100V, 10mA current and about 8cm distance. Few chromosomal irregularities were observed in the meiosis of the treated plants (S1-generation). Among the progeny (S2) obtained by selfing of the S1-plants, however, there were found some dwarf plants, which had about half the height of normal plants and were highly sterile. In the next generation (S3) of the sister plants of the dwarfs, again some sterile dwarfs appeared, but their height and fertility were somewhat improved. Crossing of these dwarfs with T. monococcum and aegilopoides was unsuccessful. In the S4-generation recovery of fertility and plant height wass further considerably increased and at last, in the S5-generation no dwarf could be found. The mechanism of these phenomena awaits further investigation.
日本遺伝学会の論文