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Histological analysis gave evidence of the induction of embryogenesis from mature embryos in callus culture in two rice genotypes: cultivars (cvs.) Rosa and Belozeme, belonging to Oryza sativa, var. ita/. The usual stage: globu/a, heart and torpedo and full embryoid with shoot and root and vascular tissues, typical for the normal process of embryogenesis were observed. The regenerated plants were of embryoid origin, thus allowing tp regenerate whole plants wit/tout the need of further root or shoot initiation.

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