Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Effect of Density of Helicotylenchus dihystera on Growth of Solanum lycopersicum

나선선충 접종 밀도가 토마토 생육에 미치는 영향

  • Kim, Donggeun (Organic Agriculture Research Institute) ;
  • Ryu, Younghyun (Organic Agriculture Research Institute) ;
  • Lee, Younsu (Department of Applied Plant Science, Kangwon National University) ;
  • Choi, Insoo (Department of Plant Bioscience, Pusan National University) ;
  • Hu, Changsuk (Organic Agriculture Research Institute)
  • Received : 2014.03.13
  • Accepted : 2014.06.18
  • Published : 2014.06.30
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Abstract

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.

나선선충 접종 밀도가 토마토의 생육에 미치는 영향을 조사하고자, 시판 토마토 6품종을 직경 10-cm 토화분에 심고, 나선선충을 0, 0.02, 0.2, 2마리/g 토양 수준으로 접종하여 60일간 온실에서 재배하였다. 나선선충은 식물체의 무게나 뿌리의 무게에는 영향을 미치지 않았으나 키에는 영향을 주었는데(P < 0.05), 토양 g 당 나선선충 2마리 접종 시 포세이돈 품종은 무처리에 비하여 키가 24% 위축되었다. 나선선충을 접종하였을 때(2마리/g 토양), 가장 나선선충의 선충의 증식이 많았던 토마토 품종은 호용으로 최종 선충 밀도는 7.0마리/g 토양 이었고, 가장 나선선충의 선충의 증식이 적었던 토마토 품종은 미니흑수품종으로 최종 선충 밀도는 2.2마리/g 토양 이었다.

Keywords

References

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