FLOWER RESEARCH JOURNAL (화훼연구)

The Korean Society for Floricultural Science (한국화훼학회)
권호 표지

Effects of Supply Methods of Nutrient Solution on Growth of Grafted Cactus Gymnocalycium mihanovichii var. friedrichii Grown Hydroponically

접목선인장 비모란 수경재배시 배양액의 공급방법이 생육에 미치는 영향

  • 홍승민 (경기도농업기술원 선인장연구소) ;
  • 조창휘 (경기도농업기술원 선인장연구소) ;
  • 이정진 (경기도농업기술원 선인장연구소) ;
  • 정재운 (경기도농업기술원 선인장연구소) ;
  • 박인태 (경기도농업기술원 선인장연구소) ;
  • 송천영 (한국농업대학 화훼학과)
  • Received : 2009.08.04
  • Accepted : 2009.09.25
  • Published : 2009.09.30

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Abstract

This experiment was conducted to elucidate the proper suppling frequency of nutrient solution for grafted cactus Gymnocalycium mihanovichii var. friedrichii grown hydroponically without medium. Grafted cactus seedlings were planted onto the cultivation bed without medium, using labor-saving tray. The treatments like 1, 3, 5 and 7 times of nutrient solution supply per day and continuous soaking of plant root in the nutrient solution during the daytime were tested in summer and winter season. The growth of grafted cactus was worst in the treatment of one time supply of nutrient solution per day, and there were not significant difference in growth of grafted cactus among other treatments both in summer and winter season. 17.6% of grafted cactus seedlings failed to rooting in the treatment of one time supply of nutrient solution per day in winter season. The proper suppling frequency of nutrient solution, for the grafted cactus Gymnocalycium mihanovichii var. friedrichii grown hydroponically without medium, was three times supply of nutrient solution per day both in summer and winter seasons considering growth and rooting of plants.

수출용 접목선인장 비모란의 무배지 수경재배에 적합한 배양액 공급횟수 및 방법 등을 구명하고자 하계와 동계로 재배시기를 구분하여 시험을 수행하였다. 비모란 접목묘를 생력트레이를 이용하여 재배베드에 정식하였으며, 배양액을 1일에 1, 3, 5, 7회 공급하는 처리들과 식물체의 뿌리를 오전 9시부터 오후 6시까지 9시간 동안 배양액에 계속 침지해 놓은 처리 등 총 5처리를 실시하였다. 하계와 동계 공히 1일 1회 배양액 공급처리에서 구직경 등 생육이 저조하였으며 그 외의 처리들에서는 생육에 유의차가 없었다. 동계재배시 1일 1회 배양액 공급처리에서 미발근율이 17.6%로 다른 처리들에 비해 매우 높아 동계의 1일 1회 배양액 공급은 생육저하 뿐만아니라 상품화율의 큰 손실이 예상되었다. 하계 및 동계 공히 생육, 발근율 등이 양호하고 배양액의 급배액 제어가 비교적 용이한 1일 3회 배양액 공급이 수출용 접목선인장 비모란의 무배지 수경재배에 적합한 배양액 공급방법으로 판단되었다.

Keywords

Acknowledgement

Supported by : 농촌진흥청

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