Effect of Runner Cutting Time on Growth and Yield during Nursery of Strawberry (cv. Maehyang and Seolhyang)

딸기 '매향'과 '설향'의 육묘기 런너의 절단 시기가 생육 및 수량에 미치는 영향

  • Kim, Dae-Young (National Institute of Horticultural & Herbal Science, RDA) ;
  • Kim, Su (National Institute of Horticultural & Herbal Science, RDA) ;
  • Kang, Yun Im (National Institute of Horticultural & Herbal Science, RDA) ;
  • Yun, Hyung Kweon (National Institute of Horticultural & Herbal Science, RDA) ;
  • Yoon, Moo Kyoung (National Institute of Horticultural & Herbal Science, RDA) ;
  • Kim, Tae Il (Chungchongnam-do Agricultural Research and Extension Services) ;
  • Choi, Jong Myung (Department of Horticulture, Chungnam National University)
  • 김대영 (농촌진흥청 국립원예특작과학원) ;
  • 김수 (농촌진흥청 국립원예특작과학원) ;
  • 강윤임 (농촌진흥청 국립원예특작과학원) ;
  • 윤형권 (농촌진흥청 국립원예특작과학원) ;
  • 윤무경 (농촌진흥청 국립원예특작과학원) ;
  • 김태일 (충남농업기술원) ;
  • 최종명 (충남대학교 원예학과)
  • Received : 2012.10.04
  • Accepted : 2012.12.05
  • Published : 2012.12.31

Abstract

This study was conducted to investigate the effects of the runner cutting time on the growth and yield of strawberry (Fragaria ${\times}$ ananassa cv. Maehyang and Seolhyang) during nursery period of two consecutive years (2009 and 2010). Strawberry runners which connected from mother plants to daughter plants were cut 30, 20, 10 and 5 days before transplanting day (11 Sep. 2009 and 10 Sep. 2010). When runner cutting time delayed, more nutrition was supplied to the daughter plant until late nursery period. It showed that there was a tendency to increase the fresh weight, crown diameter and leaf chlorophyll content. On the other hand, when the runner was cut earlier, the growth of underground part such as root weight was improved. Irrigation demand increased to 29.7% in case of runner cutting from mother plant compared with runner non-cutting treatment. In addition, infection ratio of anthracnose through runner part was 37.6% higher in case of runner cutting than that of runner non-cutting treatment. After transplanting, budding and flowering period were delayed up to 2 or 3 days because of late runner cutting. But there was no significant difference in marketable fruit yield among runner cutting times. It is recommended to conduct runner cutting 5 or 10 days before transplanting for reducing the occurrence of anthracnose.

국내에서 육성된 딸기 품종인 '매향' 및 '설향'을 대상으로 비가림 포트 육묘 시 런너의 절단 시기에 따른 자묘의 생육과 정식 후 수량을 2작기(2009년 및 2010년)에 걸쳐 검토하였다. 자묘는 정식일(2009년 9월 11일 및 2010년 9월 10일)을 기준으로 30일, 20일, 10일 및 5일 전에 모주로부터 런너를 절단하였다. 런너의 절단 시기가 늦을수록 모주에서 양수분이 육묘 후기까지 자묘로 공급되어 지상부 생체중, 관부직경 및 엽록소 함량은 증가하는 경향을 보였다. 반면에 근중 등 지하부 생육은 런너의 절단 시기가 빨라서 모주로부터 자묘의 독립 기간이 길수록 증가하였다. 모주에서 런너를 절단한 경우의 관수 요구량이 런너를 절단하지 않은 처리구에 비하여 29.7% 증가하였다. 또한, 런너를 절단하였을 경우에 런너를 통하여 탄저병이 침입한 경우가 런너를 절단하지 않은 처리구에 비하여 37.6% 높게 나타났다. 정식 후 정화방의 출뢰 및 개화 개시기는 런너 절단 시기가 늦을 경우 2~3일까지 지연되었으나 런너 절단 시기에 따른 조기 수량의 차이가 없으므로 런너 절단 시기를 정식일의 5~10일 전인 8월 하순 이후로 늦추어 실시하는 것이 탄저병 발생 경감 측면에서는 유리한 것으로 생각된다.

Keywords

References

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