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2. The isolation, culture and regeneration of Petunia leaf protoplasts;Frearson;Dev. Biol.,1973
3. Phytohormones and growth and differentiation of cells and tissue cultures in vitro;Gresshoff,1978
4. In vitro production of embryos from anthers of Datura;Guha;Nature (London),1964
5. Differentiation of buds from leaves of Nicotiana tabacum L. in sterile culture;Gupta;Phytomorphology,1966