In this study, in walnuts (Juglans regia L.) grafted at one month intervals during one year, the relations between the graft success and the levels of structural hormones in the scions were evaluated. As for the months, the graft success was the highest in February (100 %), while it was lowest in June (54 %). As a consequence of the biological, it was determined that the structural hormones in the scions changed by months, but they generally became dense in the 4th, 7th, 9th and 10th bands. The effective inhibitions were not significantly recorded in none of the months. Finally, any relation between the graft success and the levels of the structural hormones was not considered.