REFERENCES
- Abdalla F. H. and Roberts E. H., 1969.—The effects of temperature and moisture cm the induction of genetic changes in seeds of barley, briad beans and peas during storage. Ann. Bot., 33: 153–159.
- Avanzi S. and Deri P. L., 1969.—Duration of the mitotic cycle in two cultivars of Triticum durum, as measured by 3H-thymidine labelling. Caryologia, 22: 187–194.
- Avanzi S., Innocenti A. M. and Tagliasacchi A. M., 1968.—Conmportamento alla germinazione e mutabilità cromosomica spontanea in Triticum durum Desf., durante i primi due anni di vita del seme. Giorn. Bot. Ital, 102: 381–395.
- Barton L. V. and Garman H. R., 1946.—Effect of age and storage condition of seeds on the yelds of certain plants. Contrib. Boyce Thompson Inst., 14: 243–255.
- D'Amato F. and Hoffman-Ostenhoff O., 1956.—Metabolism and spontaneous mutations in plants. Advan. Genet., 8: 1–22.
- Floris C., 1966.—The possible role of endosperm in the aging of the embryo in the wheat seed. Giom. Bot. Ital., 73: 349–350.
- Floris C., 1970.—Ageing in Triticum durum: behaviour of embryos and endosperms from aged seeds as revealed by the embryo transplanation technique. J. Exptl. Botany, 21: 462–468.
- Gershon H. and Gershon D., 1970.—Detection of inactive enzyme molecules in ageing organisms. Nature, 227: 1214–1217.
- Harrison J., 1966.—Seed deterioration in relation to storage conditions and its influence upon germination, chromosomal damage and plant performance. J. Natl. Inst. Agric. Bot., 10: 644–663.
- Innocenti A. M. and Avanzi S., 1971.—Seed aging and chromosome breakage in Triticum durum. Mutation Res., 13: 225–231.
- Nuti-Ronchi V. and Martini G., 1962.—Germinabilità, sviluppo delle plantule e frequenze di aberrazioni cromosomiche in rapporto all'età del seme di frumento. Caryologia, 15: 293–302.
- Quastler H. and Sherman F. G., 1959.—Cell population kinetics in the intestinal epitelium of the mouse. Exp. Cell Res., 17: 420–438.
- Sax R., 1962.—Aspects of aging in plants. Anil. Rev. Plant Physiol., 13: 489–506.
- Sparvoli E., Gay H. and Kauffman B. P., 1966.—Duration of the mitotic cycle in Haplopappus gracilis. Caryologia, 19: 65–71.
- Wimber D. E., 1960.—Duration of the nuclear cycle in Tradescantia paludosa root tips as measured with 3H-thymidine. Am. J. Bot., 47: 828–834.
- Wimber D. E. and Lamerton L. F., 1965.—Cell cycle of mouse embryonic tissue under continuous gamma irradiation. Nature, 207: 432–433.