| 나선선충 접종 밀도가 토마토 생육에 미치는 영향 |
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김동근1* · 류영현1 · 이윤수2 · 최인수3 · 허창석1 |
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1유기농업연구소, 2강원대학교 식물자원응용공학과, 3부산대학교 식물생명과학과 |
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| Effect of Density of Helicotylenchus dihystera on Growth of Solanum lycopersicum |
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Donggeun Kim1*, Younghyun Ryu1, Younsu Lee2, Insoo Choi3 and Changsuk Hu1 |
1Organic Agriculture Research Institute, Uiseong 769-803, Korea
2Department of Applied Plant Science, Kangwon National University, Chuncheon 200-701, Korea
3Department of Plant Bioscience, Pusan National University, Miryang 627-706, Korea |
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Correspondence:
<p>Donggeun Kim</p><p>Tel : +82-, Donggeun Kim Tel : +82-54-832-9669
Fax: +82-54-833-1359
E-mail: kimdgkr@korea.kr |
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Received: March 13, 2014 Revised: June 10, 2014 Accepted: June 18, 2014 |
| Abstract |
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A greenhouse experiment was conducted to examine the effect of initial population density (Pi) of Helicotylenchus dihystera on six commercial tomato cultivars. Two-week-old tomato seedlings of six commercial cultivars were transplanted in d-10-cm clay pot and was inoculated with to give 0, 0.02, 0.2, and 2 nematodes/g soil. Plants were grown in a greenhouse for 60 days. Root and plant weights were unaffected but plant height declined only at inoculum level of 2 nematodes/g soil. At the highest initial population density (2 nematodes/ g soil), plant height of tomato cv. Poseidon was reduced by 24%. Tomato cv. Hoyong produced the most nematodes with 7.0 nematodes/g soil and the least was tomato cv. Miniheuksu with 2.2 nematodes/g soil. |
| Key Words:
Damage threshold, Helicotylenchus dihystera, Lycopersicon esculentum, Pf/Pi, tomato |
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