Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Influences of Seeding Dates and Pinching Height on Tender Shoot Productivity of Moloheiya (Corchorus olitorius L.)

모로헤이야 파종시기와 적심높이에 따른 신초의 생산성 비교

  • Uhm, Mi Jeong (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Kwon, Sung Whan (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Kim, Hee June (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Song, Young Ju (Jeollabuk-do Agricultural Research and Extension Services)
  • Received : 2015.07.06
  • Accepted : 2015.08.26
  • Published : 2015.09.30
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Abstract

This study was conducted to seek optimum sowing time and pinching height for tender shoots production of moloheiya (Corchorus olitorius L.), which is a subtropical leaf vegetables, under an unheated greenhouse in the south of Korea. Seeds of moloheiya did not germinate at all at $10^{\circ}C$, but germinated well at $18{\sim}30^{\circ}C$ with 95.5~98.5% germination rate. Germination rate was 75.0% at $15^{\circ}C$, but germination speed was very low. The pods of moloheiya sown before April 28 was matured after late-August, but those sown after May 7 was not matured in that year. In tender shoot production and harvest frequency, treatment sown on April 14 was most plentiful among sowing time treatments, and showed marketable yield increase by 14~42% compared to other sowing times. Mean-while, pinching at 100cm high from soil surface was more effective than other heights for increment of branches and tender shoot. All above suggest that it was suitable to sow seed on mid-April and to pinch at 100cm high from soil surface for increment of tender shoots in the south of Korea.

아열대 채소인 모로헤이야의 남부지역 무가온 하우스 재배시 신초 다수확을 위한 적정 파종시기와 적심높이를 설정하기 위해 본 시험을 수행하였다. 모로헤이야 종자는 $10^{\circ}C$에서는 전혀 발아되지 않았으나 $18{\sim}30^{\circ}C$에서는 95.5~98.5%가 발아되었으며, $15^{\circ}C$에서는 75.0%의 발아율을 보였으나 발아세가 아주 낮았다. 또한, 4월 28일 이전 파종시 8월 하순 이후 꼬투리가 성숙되었으나, 5월 7일 이후 파종시에는 꼬투리 성숙이 이루어지지 않았다. 모로헤이야 신초의 수확량과 수확횟수는 4월 14일 파종한 경우에 가장 많았고, 상품수량도 다른 시기에 비해 14~42% 증가하였다. 한편, 지제부로부터 100cm 높이에서 적심한 후 연속 수확한 처리에서 분지수가 가장 많이 증가하였으며, 이에 따라 신초수량도 다른 높이의 적심처리에 비해 많았다. 따라서 모로헤이야를 남부지역에서 무가온 하우스 재배시 4월 중순에 파종하고 100cm 높이에서 적심하는 것이 지속적인 신초수확에 유리한 것으로 나타났다.

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References

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