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한국잔디학회 / v.13, no.1, 1999년, pp.55-66 
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Pseudomonas cepacia AF-2001을 이용한 잔디병의 생물학적 방제
( Biological Control of Turfgrass Diseases by Pseudomonas cepacia AF-2001 ) |
| 서정우;장준환;이철훈;심규열;김현수; 제일제당 종합기술연구소;제일제당 종합기술연구소;한양대학교 의과대학;한국잔디연구소;제일제당 종합기술연구소;
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| 초 록 |
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| Effect of an antagonistic bacterium AF-2001, Pseudomonas cepacia, on control of turfgrass diseases as brown patch, Pythium blight, dollar spot, and large patch were evaluated in vitro and in vivo. Results obtained in this study are summarized as follows. 1. Pseudomonas cepacia AF-2001 showed antagonism against to the pathogens causing brown patch, Pythium blighe, dollar spot and large patch. Especially, the biological agent showed strong antagonistic effect on the causal pathogens of brown patch, dollar spot, and anthracnose, but weak on Pythium blight 2. Populotion density of P. cepacia AR-2001 decreased ra;idly in turfgrass soils. Initial population of the agent was 2.4$ imes$107 cfu/g soil, however, decreased to 1.4$ imes$103, 6$ imes$102 and 0 cfu/g soil on 10, 20, and 30 days after application, respectively. 3. Under the controlled controlled conditions of $27^{circ}C$ and 95% RH, P. cepacia AR-2001 showed 100% control efficacy on brown patch either by pre-treatment or post-treatment of infection. However, Pythium blight was controlled about 94% by pre-treatment and only 29% by post-treatment 4. In field trials, P. cepacia AF-2001 did not suppress large patch and the control efficacy on other turfgrass diseases was lower than agro-chemicals such as tebuconazole and metalaxyl. Control efficacy of brown patch, Pythium and dollar spot by the biological agent was 57.4%, 40.4%, 61.5~87%, respectively. 5. Growth, color and texture of creeping bentgrass were not differ significantly between AF-2001 treatment and untreated control. |
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| 키워드 |
| Biological control;Pseudomonas cepacia AF-2001;turfgrass disease; |
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한국잔디학회지 / v.13, no.1, 1999년, pp.55-66
한국잔디학회
ISSN : 1229-3253
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911920302743)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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