OZEN, Mesut Fig Research Institute, Turkey , GÜLŞEN, Osman Erciyes University - Department of Horticulture, Turkey , KOCATAS, Hilmi Fig Research Institute, Turkey , ÇOBANOGLU, Ferit Adnan Menderes University - Department of Agricultural Economics, Turkey , ERTAN, Birgul Erciyes University - Department of Horticulture, Turkey , BELGE, Aytekin Erciyes University - Department of Horticulture, Turkey

Gamma radiation sensitivity of five fig (Ficus carica L.) cultivars

28111

This research was conducted to assess effects of six dosage levels of gamma irradiation on budsticks of five fig cultivars. Six levels of dosages (0.0, 10.0, 16.9, 25.3, 50.7, and 67.0 Gy) of cobalt (60Co) gamma irradiation were applied to budsticks of Sarilop , Sari Zeybek , Bursa Siyahi , Beyaz Orak , and Siyah Orak fig cultivars. M1V1 (mutation one vegetation one) plants were evaluated for survival ratio and shoot growth. LD50 values were determined as follows: 50.7 gray (Gy) for Sarilop , 25.3 Gy for Sari Zeybek , and Bursa Siyahi , 10.0 Gy for Beyaz Orak and Siyah Orak cultivars, respectively. Interaction between cultivars and six levels of gamma dosages was observed for shoot growth in 16th week at alpha 0.01 level. Sarilop , Sari Zeybek , and Bursa Siyahi had more shoot growth compared to Beyaz Orak and Siyah Orak at 10.0, 16.9 and 25.3 Gy gamma irradiations. This study shows that varying dosages of gamma irradiation differently affect five fig cultivars; and therefore, suitable irradiation dosages for specific genotypes have to be determined for fig breeding program.

222

Ficus carica L. , lethal dosage , gamma radiation , mutation breeding

Erciyes University Journal Of The Institute Of Science an‎d Technology

227