Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effects of Oligosaccharide and Pseudomonas sp. on the Growth of Potted Kalanchoe During Summer Season

천연올리고당 및 Pseudomonas속 길항미생물의 단독 및 혼용처리가 고온기 칼랑코에 생육촉진에 미치는 영향

  • Kim, Seong-Ja (Faculty of Applied Plant Science, Chonnam National University) ;
  • Han, Tae-Ho (Faculty of Applied Plant Science, Chonnam National University, Insti. of Ag. Sci. and Tech., College of Agriculture and Life Sciences, Chonnam National University) ;
  • Chung, Soon Ju (Faculty of Applied Plant Science, Chonnam National University, Insti. of Ag. Sci. and Tech., College of Agriculture and Life Sciences, Chonnam National University)
  • 김성자 (전남대학교 농업생명과학대학 응용식물학부) ;
  • 한태호 (전남대학교 농업생명과학대학 응용식물학부, 전남대학교 농업생명과학대학 농업과학기술연구소) ;
  • 정순주 (전남대학교 농업생명과학대학 응용식물학부, 전남대학교 농업생명과학대학 농업과학기술연구소)
  • Published : 2003.12.01
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Abstract

Most severe problem in production of potted kalanchoe during summer season is retardation of growth caused by high temperature. The aim of this experiment was aimed to investigate the effects of natural products such as algin-oligosacchride and glucosamine oligosaccharide, plant growth promoting rhizovacteria such as Pseudomonas sp. B and Pseudomonas sp. D2, and AG-solution on the growth of potted kalanchoe under the different root zone temperature in the greenhouse. Growth characteristics in terms of plant height, leaf length, leaf width, leaf area, leaf weight, fresh weight of shoot and root and root length were recorded under three root zone temperatures (25$^{\circ}C$, 30$^{\circ}C$, 35$^{\circ}C$). In 25$^{\circ}C$, the mixed treatment of Pseudomonas sp. B and glucosamine oligosaccharide resulted in the best growth in terms of plant height, leaf area and root weight. In 3-$^{\circ}C$, glucosamine oligosaccharide treatment gave fair result in plant height and leaf weight, but the mixed treatemtn of Pseudomonas sp. D2 and algin-oligosaccharide showed better growth on leaf area and root weight. In 35$^{\circ}C$, the mixed treatment of Pseudomonas sp. B and glucosamine oligosaccharide could greatly improve the plant height, leaf area, leaf weight and root weight. These results demonstrated that the mixed treatment of natural products and microorganisms could overcome the detrimental effects caused by high temeprature in the production of kalanchoe.

고온기 분식 칼랑코에 재배에 있어 문제는 고온 스트레서에 의한 생장의 억제로, 본 연구는 지하부 및 지상부의 생장을 촉진을 시킬 수 있다고 알려진 근권 생장촉진미생물(Pseudomonas sp. B와 Pseudomonas sp. D2)을 선발하여 사용하였으며 천연물로서는 alginoligosaccharide와 glucosamine oligosaccharide를 사용하였다. 또한 이들의 AG-용액과 단일 및 복합 처리하여 재배 온도차이를 부여한 경우 칼랑코에의 생장에 미치는 영향을 조사하였다. 상이한 지하부 온도조건은 25$^{\circ}C$, 30$^{\circ}C$ 및 35$^{\circ}C$로 처리하여, 2주후 초장, 엽장,엽폭, 엽면적, 엽중, 지상부 생체중, 근장, 근중을 조사하였다. 25$^{\circ}C$처리구에서는 초장, 엽면적, 엽중, 근중 모두 Pseudomonas sp. B와 glucosamine oligosaccharide를 혼합한 처리구가 가장 높았고, 30$^{\circ}C$의 경우 초장과 엽중은 glusosamine oligosaccharide처리에서, 엽면적과 근중은 Pseudomonas sp. D2와 algin-oligosaccharide를 처리구에서 가장 좋은 생장 효과를 나타내었다. 35$^{\circ}C$의 경우는 초장, 엽면적, 엽중, 근중 모두 Pseudomonas sp. B와 glucosamine oligosaccharide를 혼합한 처리구에서 효과가 컸다. 이상의 결과로 보아 고온기 칼랑코에의 분화 재배시 문제가 되는 생장억제현상은 천연제재와 미생물 제재를 혼합처리 함으로써 크게 개선시킬 수 있었다.

Keywords

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