Effect of Cultivars and Planting Distance on Growth and Yield of Spinach for Hydroponic Cultivation in Autumn Season

가을철 수경재배시 품종과 재식거리가 시금치의 생육 및 수량에 미치는 영향

  • Seo Jong-Bun (Horticultural Research Dvision, Jeollanam-do ARES) ;
  • Choi Kyong-Ju (Horticultural Research Dvision, Jeollanam-do ARES) ;
  • Ahn Pyong-Ryol (Horticultural Research Dvision, Jeollanam-do ARES) ;
  • Lim Hyung-Ki (Horticultural Research Dvision, Jeollanam-do ARES) ;
  • Hong Sae-Jin (Department of Applied Plant Science, Kangnung National University)
  • 서종분 (전라남도농업기술원 원예연구과) ;
  • 최경주 (전라남도농업기술원 원예연구과) ;
  • 안병렬 (전라남도농업기술원 원예연구과) ;
  • 임형기 (전라남도농업기술원 원예연구과) ;
  • 홍세진 (강릉대학교 식물응용과학과)
  • Published : 2005.09.01

Abstract

This study was carried out to investigate the effects of cultivars and to establish the hydroponic cultivation method of spinach (Spinacia oleracea L.) f3r autumn season. Considering the rate of germination, plant height is 25 cm interior and exterior and leaf blade and petiole attitude is erect the best two cultivars 'Artlars', 'Dimple' were selected among the 19 cultivars tested. Seed germination was more than $90{\%}$ in both cultivars of 'Artlars', 'Dimple'. Seed rate of germination drops more or less, but it was cultivar that 'Mahoroba' cultivars is becoming in export standard production, and 'Premium', 'Platon' cultivar which plant height of leaf blade and petiole attitude is erect is about 20 cm was thought by suitable cultivars to domestic. Plant height relationship difference that follow to planting distances decreased according as planting distances growth than $12{\times}11$ cm to $12{\times}15$ cm. In the meantime, the increase of leaf area and fresh weight was increasing transplanting distance. The yield per ha of 14,890 kg in the $12{\times}11$ cm was $67{\%}$ increased than that in the $12{\times}9$ cm. Therefore, $12{\times}11$ cm spacing is considered optimum planting distance for spinach hydroponic cultivation in autumn season.

가을철 수경재배에 알맞은 품종을 선발하기 위해 19개 품종을 대상으로 선발 실험을 하였고 그 중 가장 우수한 '아트라스'를 대상으로 생육 및 수량 실험을 수행하였다. 선발 실험결과 직립형태이면서 발아율 $90{\%}$이상, 초장이 25cm 내외인 '아트라스'와 '딤플'이 가장 좋았고, 발아율은 다소 떨어지지만 '마호로바'도 비교적 우수한 생육을 보여 수출용 품종으로 적합하였고, 직립형태 중 초장이 20cm 정도인 '프리미엄'과 '플라톤' 품종은 내수용으로 적합한 품종으로 생각되었다. 정식시 재식거리를 $12{\times}9$ cm, $12{\times}11$ cm, $12{\times}13$ cm, $12{\times}15$ cm로 하여 '아트라스'를 재배한 결과 초장 등 엽 생육은 처리간 유의성은 없었다. 재식거리에 따른 초장의 차이는 $12{\times}11$ cm가 24.1 cm, $12{\times}13$ cm가 21.5cm, $12{\times}15$ cm가 21.2cm에 비해 재식거리가 넓어짐에 따라 감소되었다. 한편 지상부의 생체중은 재식거리가 넓어질수록 증가되었으며, 1개체의 무게는 $12{\times}9$ cm의 7.3g에 비해 $12{\times}11$ cm, $12{\times}13$ cm, $12{\times}15$ cm이 각각 10.7g으로 $46{\%}$ 컸으며, 정식 1홀당 생체중도 재식거리가 넓을수록 증가되어 $12{\times}9$ cm의 20.2g에 비해 $12{\times}11$ cm에서 33.8g, $12{\times}13$ cm에서 29.7g, $12{\times}15$ cm에서 26.9g으로 각각 $67{\~}33\%$ 증가되어 수량에 영향을 미쳤다. 수량은 $12{\times}11$ cm가 $14,890kg{\cdot}ha^{-1}$으로 $12{\times}9$cm의 $8,900kg{\cdot}ha^{-1}$에 비해 $67{\%}$증가되었다. 따라서 가을철 시금치 수경 재배시 안정 생산을 위한 재식거리는 $12{\times}11$ cm라고 생각되어 진다.

Keywords

References

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