Shoot Growth Characteristics and Climatic Factors in Greenhouse Cultivation of Mulberry

뽕나무의 온실재배에서 신초 생육 특성과 기상 요인

  • Kim, Ho-Cheol (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University) ;
  • Kwon, Tae-Oh (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University) ;
  • Bae, Jong-Hyang (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University) ;
  • Kim, Tae-Choon (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University)
  • 김호철 (원광대학교 원예.애완동식물학부) ;
  • 권태오 (원광대학교 원예.애완동식물학부) ;
  • 배종향 (원광대학교 원예.애완동식물학부) ;
  • 김태춘 (원광대학교 원예.애완동식물학부)
  • Received : 2012.03.12
  • Accepted : 2012.03.28
  • Published : 2012.03.31

Abstract

This research was carried out to investigate the shoot growth characteristics and climatic factors for early harvest and stable yield by greenhouse on mulberry ($Morus$ $alba$) in Buan-gun, Jeollabuk-do. Budbreak and coloring date of mulberry in greenhouse were earlier 18~19 days than those in field, and from bud-break to coloring was 39 days in both cultivation types. Shoot length and fruit number per shoot of mulberry in greenhouse were not significantly different with those of field, but number of node was significantly little than that of field. For 39 days in greenhouse, weekly cumulative radiation were 0.3~0.8 times. But weekly cumulative temperature was not different with that of field. And relative humidity as range of 53.0~94.5% in greenhouse was higher than that of field. Therefore, mulberry is suitable to greenhouse cultivation for early harvest and stable yield.

본 연구는 전북 부안에서 재배되고 있는 뽕나무를 대상으로 온실 재배를 통하여 조기 수확 및 안정적 수확량 확보가 가능한지를 알아보고자 신초 생육 특성과 이에 관계하는 기상 요인을 분석하였다. 발아 및 착색 시기는 온실의 뽕나무에서 노지에 비해 18~19일 정도 빨랐고, 발아시에서 착색시까지의 일수는 39일로 차이를 나타내지 않았다. 발아 후 39일 동안 온실에서 뽕나무의 신초 길이, 신초당 착과수는 노지와 차이를 나타내지 않았지만, 마디수는 적었다. 생육 기간 동안 온실 내부의 주별 광량은 노지에 비해 0.3~0.8배 범위 수준이었고, 총 누적량은 절반수준으로 아주 적었다. 그러나 온실에서 주별 누적온도는 노지와 거의 차이를 나타내지 않고 후반기로 가며 다소 상승하는 경향이었으며, 총 누적량도 노지에 1.1배로 거의 유사한 수준이었다. 생육 기간 동안 상대습도는 온실에서 53~94.5%로 노지에 비해 대부분 높은 수준을 유지하였다. 따라서 뽕나무는 광의 영향을 적게 받고 안정적인 수량을 조기에 확보할 수 있어 온실 재배 작목으로 적합하다.

Keywords

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