Breeding of "Wongyo 3111", Intermediate Strawberry Parent Line with High Sugar Content and Large-sized Fruit

고당도 대과성 특성을 지닌 중간모본용 딸기 "원교 3111호" 육성

  • Rho, Il Rae (Protected Horticulture Research Station, National Institute of Horticultural & Herbal Science, RDA) ;
  • Cho, Yong Seop (Protected Horticulture Research Station, National Institute of Horticultural & Herbal Science, RDA) ;
  • Cheong, Jae Wan (Protected Horticulture Research Station, National Institute of Horticultural & Herbal Science, RDA) ;
  • Jeong, Ho Jeong (Protected Horticulture Research Station, National Institute of Horticultural & Herbal Science, RDA)
  • 노일래 (농촌진흥청 국립원예특작과학원 시설원예시험장) ;
  • 조용섭 (농촌진흥청 국립원예특작과학원 시설원예시험장) ;
  • 정재완 (농촌진흥청 국립원예특작과학원 시설원예시험장) ;
  • 정호정 (농촌진흥청 국립원예특작과학원 시설원예시험장)
  • Received : 2009.08.13
  • Published : 20090900

Abstract

Strawberry is an out-crossed crop that is relatively sensitive to inbreeding, and as a result, most of breeding programmes in strawberry have been based on selection breeding where elite parents are selected from intercrossing. Also, pedigree breeding has been successfully employed in a number of instances to concentrate genes of interest. Therefore, in order to obtain inbred line having the genotype of excellent combining ability by selfing and incrossing to improve breeding efficiency of strawberry, elite varieties were self-pollinated. From the selfing line of "Benihoppe" cultivar, we selected "Wongyo 3111" having excellent horticultural traits such as plant vigor, sugar content and fruit hardness among these progenies. "Wongyo 3111" shows erect plant type, vigorous growth habit, early flower bud differentiation with 16~17 flowers per cluster. Fruits of "Wongyo 3111" are conical type having a bright red skin color, and 17.2 g in an average weight. Also that have a relatively more high sugar/acid ratio and firmness than check cultivars as sugar content of 11.3oBx, acidity of 0.50% and firmness of 21.7 g/$mm^2$. But although yield of "Wongyo 3111" is not significantly different from check cultivars, its marketable yield is remarkably lower than that of check cultivars because of poor fruit-setting under low temperature. Disease and pest reactions of "Wongyo 3111" are more sensitive to powery mildew, anthracnose and spotted spider mites than check cultivars. Therefore, "Wongyo 3111" is suitable for intermediate parent line better than as a cultivation cultivar.

딸기는 근연교배가 다른 작물에 비해 상대적으로 약한 타 식성 작물이다. 딸기의 대다수 품종 육성방법은 품종간 교잡으로 부터 우수한 개체를 선발하는 선발육종을 기본으로 하여 왔다. 그러나 계통 육성방법도 우수한 유전자를 집적하기 위한 방법으로 많이 이용되어 왔었다. 따라서 딸기의 육종효율을 증진시키기 위해 자식 또는 근계교배를 통하여 조합능력이 높은 유전자형을 가진 근교계를 만들고자 형질이 우수한 품종을 대상으로 자식을 실시하였다. 이 자식계통 중 초세, 당도, 경도 등 원예적 형질이 아주 우수한 "원교 3111호"를 선발하였다. "원교 3111호"의 주요 특성을 보면 초형은 직립형이고, 초세가 매우 강하며 화아분화가 매우 빠르다. 과형은 원추형이고, 과색은 선홍색이며, 화방 당 화수는 16~17개 정도이고, 평균과중이 17.2 g이다. 과실의 당도는 11.3 $^{\circ}Bx$, 산도는 0.50%, 경도는 21.7 g/$mm^2$로 대조 품종에 비해 단산비가 상당히 높고 경도도 우수하다. 전체 수량은 대조품종과 큰 차이가 없으나 저온기 착과성이 떨어져 상품과율이 대조 품종에 비해 떨어지고, 흰가루병, 탄저병 등 내병성에 약한 경향이 있어 재배품종보다는 신품종 육성을 위한 중간모본용으로 적합하다.

Keywords

References

  1. Bentvelsen, G.C.M., E. Bouw, and J.E.V. Zanten. 1997. Breeding strawberries (Fragaria×ananassa Duch.) from seed. Acta Hort. 439(1):149-153
  2. Finn, C.E., B. Yorgey, B.C. Strik, and P. P. Moore. 2004. 'Tillamook' and 'Pinnacle' strawberries. HortScinece 39(6):1487-1489
  3. Geibel, M. 2002. Genetic resources in strawberries in europe. Acta Hort. Proc. 4th Int. Stawberry Symp. p. 73-75
  4. Hisakazu, M., K. Fujita, T. Sueyoshi, and H. Fushihara. 2003. New strawberry cultivar 'Fukuoka S6' and 'Fukuoka S7' for forcing culture. Bull. Fukuoka Agric. Res. Cent. 22:61-68
  5. Hummer, K.E., and B.C. Strik. 1997. Strawberry genebank information on the worldwide web. Acta Hort. Proc. Third Int. Stawberry Symp. 439(1):49-53
  6. Lewers, K.S., J.M. Enns, S.Y. Wang, J.L. Maas, G.J. Galletta, and S.C. Hokanson. 2004. 'Ovation' strawberry. HortScience 39(7):1785-1788
  7. Lopez, A.J.M., C. Soria, J.F.S. Sevilla, J. Galvez, J.J. Medina, A. Arjona, J.I. Marsal, and R. Bartuel. 2004. 'Marina' strawberry. HortScience 39(7):1785-1788
  8. Lopez, A.J.M., C. Soria, J.F.S. Sevilla, J. Galvez, J.J. Medina, A. Arjona, J.I. Marsal, and R. Bartuel. 2005. 'Medina' strawberry. HortScience 40(2):482-483
  9. Minegishi, M., K. Naito, and H. Maegawa. 1994. New strawberry variety 'Asuka Wave'. Bull. Nara. Agri. Expt. Sta. 25:9-20
  10. Ministry for Food, Agriculture Forestry and Fisheries (MIFAFF). 2008. Statistics of ministry for food, agriculture forestry and fisheries in 2007. p. 30
  11. Rho, I.R., Y.S. Cho, J.W. Cheong, and H.J. Jeong. 2008. Effect of generation advancement by inbreeding on inbreeding depression and seed germination in strawberry. Kor. J. Hort. Sci. Technol. 26(2):164-167
  12. Rho, I.R., Y.S. Cho, J.W. Cheong, H.J. Jeong, and H. B. Jeong. 2007. Effect of low-temperature and short-photoperiod treatment during a high-temperature season on flower bud formation and generation acceleration of short-day strawberry. Kor. J. Hort. Sci. Technol. 25(1):12-16
  13. Ueki, M., O. Cho, K. Hiroshi, A. Hiroshi, and T. Kuniji. 1993. New strawberry cultivar 'Tochinomine'. Bull. Tochigi Agr. Exp. Sta. 40:99-108
  14. Yoshihiro, B. and Y. kazunori. 2005. New strawberry variety 'Yumenoka'. Res. Bull. Aichi Agric. Res. Ctr. 37:17-22