[논문]고정화된 Pantoea agglomrans와 인광석의 복합처리가 벼의 생육 촉진에 미치는 영향

정희경; 류정현; 이형석; 박명수; 사동민

고정화된 Pantoea agglomrans와 인광석의 복합처리가 벼의 생육 촉진에 미치는 영향
Effect of Immobilized Cells of Pantoea agglomerans on Growth Promotion of Rice(Oryza sativa L.) in the Presence of Rock Phosphates 원문보기

韓國土壤肥料學會誌 = Korean journal of soil science & fertilizer, v.37 no.1, 2004년, pp.41 - 45

정희경 (충북대학교 농화학과) , 류정현 (충북대학교 농화학과) , 이형석 (충북대학교 농화학과) , 박명수 (충북대학교 농화학과) , (충북대학교 농화학과) , (충북대학교 농화학과) , 사동민 (충북대학교 농화학과)

초록
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충북지역의 근권 토양으로부터 선발한 인산가용화 균인 Pantoea agglomeraans와 인광석을 복합처리하여 벼(Oryza sativa L.)의 생육 및 인산 흡수량에 미치는 영향을 온실내에서 실험하였다. 본 실험은, 종자에 박테리아를 적용시킨 것(bactenzation), 독립 세포 및 고정화된 세포(immobilized cell)를 접종시킨 후, 인광석 1 g과 2.5 g을 각각 시비한 6처리구와 무처리구로 나누어 비교 실험하였다. 인산가용화균을 접종한 처리구가 무처리구에 비하여 벼의 생육 및 인산 흡수량을 증대하는 경향을 나타냈으며, 특히 1 g의 인광석과 고정화된 Pantoea agglomerans를 접종한 처리구에서 다른 처리구들에 비해 가장 우수한 결과를 나타내었다. Pot 충진물내의 유효인산 농도 또한 미생물 접종 처리구에서 증가하였으며, 벼에 흡수된 전인산량과 정의 상관관계가 성립함을 알 수 있었다.

Abstract ▼ AI-Helper

A phosphate solubilizig bacterium, Pantoea agglomerans, was isolated from rhizosphere soils collected from Chungbuk area. A greenhouse experiment was conducted to study the effect of combined application of rock phosphate and P. agglomerans inoculation on plant growth and phosphate accumulation of rice (Oryza sativa L.). Apart from control that received no inputs, six treatments were planned as follows; 1) seed bacterization, 2) free cell inoculation and 3) bacteria immobilized beads inoculation, individually and in combination with 1 and 2.5 g of rock phosphate per pot. The results showed that plant growth and phosphate uptake were significantly enhanced as a result of bacterial inoculation. Bacterial inoculation in the form of immobilized beads and 1 g of rock phosphate was found to affect positively the rice plant growth and phosphorus accumulation than other treatments. The available phosphate concentration of the pot mixture also found improved as a result of P. agglomerans inoculation. A positive correlation was observed between the phosphate concentration in the pot mixture and phosphate accumulation in plant.

주제어

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문제 정의

,2001). The aim of this work was to study the effect of combined application of immobilized P. agglomerans and rock phosphate on rice (O. sativa L.) growth, dry matter production and P accumulation.

제안 방법

5 g pot-1 for CRP1 and CRP2, respectively. Experiments were conducted in a completely randomized block design with seven treatments and six replications. The treatments planned were as follows: 1) Uninoculated control, 2) BI + CRP1, 3) BI + CRP2, 4) FCI + CRP1, 5) FCI + CRP2, 6) BE + CRP1 and 7) BE + CRP2.
, 2001). In this study the use of immobilized cells of P. agglomerans promoted better rice plant height, root length, dry matter production and P accumulation. The observed benefits could be attributed to the action of P.
Plant measurements At 30 and 60 days after seeding, plants were depotted and the adhering pot mixture particles were carefully removed by gentle shaking under running tap water and shoots and roots were collected for further chemical analysis. Plant height and root length were measured.

데이터처리

, 1954). The data were subjected to statistical analysis (ANOVA) and significant difference was analyzed atp < 0.05 (Fisher, 1958).

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