1. Aghion-Prat A (1965) Néoformations de fleurs in vitro chez Nicotiana tabacum L, Physiol Vég 3: 229–303.
2. Ahmed R, Gupta D, Ghosh PD (1987) The cytological status of plants regenerated from shoot-meristem culture of Pisum sativum L, Plant Breeding 98: 306–311.
3. Allicchio R, Antonioli C, Graziani L, Roncarati R, Vannini C (1987) Isozyme variation in leaf-callus regenerated plants of Solanum tuberosum, Plant Sci 53: 81–86.
4. Anonymous (1989) Growers spot variations in tissue cultured stock, Amer Nurseryman 169 (6): 15,17.
5. Arcioni S, Mariotti D, Damiani F, Pezzotti, M (1986) Somaclonal variation in Lotus corniculatus L. In: Semal J (Ed) Genetic Manipulation in Plant Breeding (pp 581–584) Martinus Nijhoff, Dordrecht.