Document Type : Full Paper
To produce embryonic callus in four grapevine cultivars i.e. Yaghouti, Bidane Sefid, Shahroodi and Flame Seedless, ovary explants were collected at flower developmental stages III and V and cultured in MS medium supplemented with various concentrations of 2,4-D and BAP. For differentiation of somatic embryos, MS medium was supplemented with various concentrations of IAA and BAP. Results showed that collecting ovaries explants at stage V produced the highest percentage of somatic embryos in all studied cultivars. For embryogenic callus production, MS medium supplemented with 4.5µm 2,4-D and 1.1µm BAP was best treatment. However, for embryo differentiation, MS medium supplemented with 2mg/l IAA and 1mg/l BAP was better than the other treatments. The highest percentage of callus which produced somatic embryos obtained in ‛Yaghouti’ and ‛Bidaneh Sefid’ at second sampling time (V), ...