Green beans are a legume used in human diets throughout the world. One of the most important factors limiting the yield of bean crops in the world is high lime. Two registered varieties (Beyzade and Lida) resistant to high lime and three commercial varieties (Ribera, Albeni, and Garrafol) which are superior in terms of some agricultural characteristics were used as materials. In this study, 20 F1 hybrid combinations were obtained from green bean varieties Beyzade, Lida, Riberia, Albeni, and Garrafol using full diallel crosses. The effects of GCA and SCA on the traits examined in the study were found to be important and the most suitable parent and cross combinations for green bean breeding were identified. The study found that additive genes can effectively inherit grain yield and plant height, while non-additive genes can effectively inherit other traits studied. Garrafol had the highest GCA for grain yield. The “Lida x Garrafol” cross exhibited high SCA effects for seed yield per plant. These results indicate that sufficient levels of genetic variation exist in the study population for the agricultural traits observed in this study.