Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Influence of the Differences in Altitude during Raising Seedlings on Daughter Plant Characteristics and Subsequent Strawberry Production

육묘 기간중의 고도 차이가 자묘의 특성 및 딸기 수량에 미치는 영향

  • Lee, Jong-Nam (Highland Agriculture Research Center, National Institute of Crop Science) ;
  • Lim, Ju-Sung (Highland Agriculture Research Center, National Institute of Crop Science) ;
  • Lee, Jun-Gu (National Institute of Horticultural & Herbal Science) ;
  • Nam, Chun-Woo (National Institute of Horticultural & Herbal Science) ;
  • Kim, Ki-Deog (Highland Agriculture Research Center, National Institute of Crop Science) ;
  • Lee, Eung-Ho (Protected Horticulture Research Station, National Institute of Horticultural & Herbal Science) ;
  • Yeoung, Young-Rog (Department of Plant Science, Kangnung-wonju National University)
  • 이종남 (국립식량과학원 고령지농업연구센터) ;
  • 임주성 (국립식량과학원 고령지농업연구센터) ;
  • 이준구 (국립원예특작과학원 원예작물부) ;
  • 남춘우 (국립원예특작과학원 원예작물부) ;
  • 김기덕 (국립식량과학원 고령지농업연구센터) ;
  • 이응호 (국립원예특작과학원 시설원예시험장) ;
  • 용영록 (강릉원주대학교 식물생명과학과)
  • Received : 2010.02.17
  • Accepted : 2010.04.08
  • Published : 2010.08.31
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Abstract

The nursery plant quality and flower bud induction of new strawberry cultivars, 'Maehyang' and 'Seolhyang' in forcing culture were evaluated in the highland and lowland region. In order to produce daughter plants, the new cultivars were grown in the open field located at both highland (Daekwallyung, above 800 m sea level) and lowland (Gangneung, above 20 m sea level) region, respectively. The average air temperature at highland during nursery plant propagation period was $5.3^{\circ}C$ lower than those at lowland. The number of daughter plants produced at lowland was 2 times as high as those of highland, presumably due to the higher air temperature. Anthracnose incidence rates of runner plants produced at lowland were 4 to 7% as high as those in highland. Mean temperature in the highland ($23.5^{\circ}C$) during flower bud differentiation treatment was $5.1^{\circ}C$ lower than that in the lowland ($28.6^{\circ}C$). Seedlings produced in highland showed higher C/N ratio and lower T/R ratio compared to those produced in lowland. The average flower bud formation date of the daughter plants grown in highland were advanced by 30 days compared to the date in lowland. Accordingly, highland was supposed to be appropriate region for raising seedlings in forcing culture of the new strawberry cultivars of 'Maehyang' and 'Seolhyang'.

본 실험은 촉성재배용 신품종딸기의 화아분화 유기와 자묘 품질에 대한 고랭지육묘 효과를 구명하고자 실시하였다. 신품종 딸기 '매향'과 '설향'은 촉성재배를 위해 대관령(해발 800m)과 강릉(해발 20m)에서 각각 증식되었다. 증식기간 동안 평균기온은 강릉이 $20.4^{\circ}C$로 대관령의 $15.1^{\circ}C$보다 $5.3^{\circ}C$ 더 높았다. 자묘 증식량은 강릉이 대관령보다 두 배 정도 많았다. 탄저병 발생율은 강릉이 대관령보다 4-7% 높았다. 화아분화 유기를 위한 육묘처리기간의 평균기온은 강릉육묘가 $28.6^{\circ}C$로 대관령육묘의 $23.5^{\circ}C$보다 $5.1^{\circ}C$ 더 높았다. 대관령육묘는 강릉육묘에 비해 C/N율은 높고, T/R율은 낮았다. 화아분화기는 대관령육묘가 강릉육묘보다 30일 이상 빨랐다. 따라서 신품종 딸기의 촉성재배를 위한 적정 육묘지역은 고랭지가 적당하였다.

Keywords

References

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