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Recovery of chromosomes from radiation-induced damage in polyploids.

Recovery of chromosomes from radiation-induced damage in polyploids.

Uc. Zap. perm. Univ. (Sci. Notes Perm' Univ.). 22: 169-72

Dry seeds of Triticum, Avena and Fagopyrum species, differing in ploidy level, were irradiated with a 60 kr. gamma -ray dose from a 60Co source. The seeds were then germinated and the developing rootlets were fixed at varying intervals after the commencement of germination. In all the specimens studied, there was a decrease in the number of chromosome fragments per 100 anaphase cells with increasing age, indicating that recovery from initial damage had occurred.

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