“…The main differences between the present study and the earlier ones are the growth regulators used and melon cultivars selected. We used Hasanbey and Cinikiz melon cultivars as explants; while the others used 'Amarillo oro' [48,51], 'Accent', 'Galia', 'Presto', and 'Viva' [36], 'Revigal' and 'Kirkagac' [34,50], 'Topmark' [49,50]. After three weeks on a MS medium free from plant growth regulator, approximately 80% of cotyledon explants gave rise to friable callus ( Figure 5).…”