딸기의 내저온성 품종육성을 위한 우수 교배친 선발을 위해‘다홍’,‘감홍’,‘매향’,‘설향’을 자방친 으로 이용하고‘다홍’,‘감홍’,‘매향’,‘설향’,‘수경’,‘선홍’,‘원교3111호’등을 화분친으로 하여 24 조합을 작성하고 조합능력 검정을 실시하였다. 그 결과, 자방친을‘다홍’으로 하였을 경우에는 전체조 합에서 과중이 작아지는 경향이 있었고,‘감홍’은 생존율이 낮아 두 품종은 자방친으로 적합하지 않은 것으로 나타났다. 화분친에 있어서도‘선홍’을 화분친으로 이용한 경우 경도가 낮아지는 경향이 있었 고,‘수경’은 기형과가 다소 발생하는 경향이 있어 화분친으로 적합하지 않았다. 그러나‘매향’과‘설 향’을 자방친으로 이용할 경우 발아율과 생존율이 상대적으로 높았고, 과실품질이 우수하고 수량성도 높은 것으로 나타났다. 따라서‘매향’과‘설향’이 자방친으로 우수하였고, 화분친으로는‘매향’,‘설 향’,‘원교3111호’등이 우수하였다. 특히,‘매향’ב설향’,‘설향’ב매향’,‘설향’ב원교3111호’조합 은 당도, 과실크기, 경도, 수량성 측면에서 우수성이 인정되기 때문에 내저온성 교배조합으로 적합하다 고 판단된다.

In order to select excellent cross parents for development new cultivar of low temperature tolerant, combining ability was conducted by 24 cross combinations obtained from crosses between ‘Dahong’, ‘Gamhong’, ‘Maehyang’, ‘Seolhyang’ as seed parents and ‘Dahong’, ‘Gamhong’, ‘Maehyang’, ‘Sugyeong’, ‘Sunhong’, ‘Wongyo 3111’ as pollen parents. The results showed that two cultivars of ‘Dahong’, ‘Gamhong’ were not suitable for seed parents. Because average fruit weight in case of ‘Dahong’ as a seed parent was the tendency to become the smallest in total cross combinations, survival ratio in case of ‘Gamhong’ as a seed parent was the lowest in total cross combinations. And fruit hardness in case of ‘Sunhong’ as a pollen parent was the tendency to low, incidence of malformed fruit in case of ‘Sugyeong’ as a pollen parent was the tendency to be increased. Therefore, two cultivars of ‘Sunhong’, ‘Sugyeong’ was also not suitable for pollen parents. But In case of ‘Maehyang’ and ‘Seolhyang’ as seed parents, germination percent and survival rate were relatively higher than other seed parents, fruit quality and yield had also excellent. Therefore, there could be selected to ‘Maehyang’ and ‘Seolhyang’ as seed parents and ‘Maehyang’, ‘Seolhyang’, ‘Wongyo3111’ as pollen parents. Especially, the crosses ‘Maehyang’ × ‘Seolhyang’, ‘Seolhyang’ × ‘Maehyang’, ‘Seolhyang’ × ‘Wongyo3111’ were suitable for cross combination for development new cultivar of low temperature tolerant to be demonstrated the excellence as cross parents in sugar contents, fruit weight, fruit hardness and yield.

• 이선이(국립원예특작과학원 채소과) | Sun Yi Lee
• 김승유(국립원예특작과학원 채소과) | Seung Yu Kim
• 김대영(국립원예특작과학원 채소과) | Dae Young Kim
• 정호정(국립원예특작과학원 기획조정과) | Ho Jeong Jeong
• 노일래(경상대학교 농학과(농업생명과학연구원)) | Il Rae Rho Corresponding author