Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Searching for Rotationable Vegetables for Paratylenchus projectus in Lettuce Greenhouse

해바라기침선충(Paratylenchus projectus) 피해 경감을 위한 윤작작물 탐색

  • Kwon, Giyoon (Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University) ;
  • Seo, Jongmin (Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University) ;
  • Park, Sohee (Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University) ;
  • Kang, Heonil (Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University) ;
  • Park, Namsook (Nematode Research Center, Life and Industry Convergence Research Institute, Pusan National University) ;
  • Choi, Insoo (Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University)
  • 권기윤 (부산대학교 생명자원과학대학 식물생명과학과) ;
  • 서종민 (부산대학교 생명자원과학대학 식물생명과학과) ;
  • 박소희 (부산대학교 생명자원과학대학 식물생명과학과) ;
  • 강헌일 (부산대학교 생명자원과학대학 식물생명과학과) ;
  • 박남숙 (부산대학교 생명산업융합연구원 선충연구센터) ;
  • 최인수 (부산대학교 생명자원과학대학 식물생명과학과)
  • Received : 2020.09.29
  • Accepted : 2020.12.14
  • Published : 2020.12.31
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Abstract

The severe lettuce damage caused by Paratylenchus projectus was first reported in 2019 in Korea. To find high-value rotation crops for the control of P. projectus, nine vegetables, Brassica juncea (leaf mustard), B. rapa subsp. nipposinica (kyona), B. oleracea var. italica (broccoli), B. rapa subsp. chinensis (bok choy), B. oleracea var. viridis (kale), B. oleracea var. gongylodes (kohlrabi), Cichorium endivia (endive), C. intybus (chicory), Ipomoea aquatica (morning glory) were planted in d-10-cm clay pots in greenhouse. The growth of vegetables was compared between inoculated with 3,000 P. projectus per 100 ㎤ of soil and non-inoculated. Treatments were replicated 10 times. After 100 days, the reduction of fresh top weight was 30.4% in C. intybus, 35.1% in I. aquatica, 36.9% in B. oleracea var. acephala, 40.5% in C. endivia, 42.1% in B. rapa, 47.5% in B. rapa subsp. nipposinica, 50.4% in B. oleracea var. gonglodes, 56.3% in B. oleracea var. italica, and 66.0% in B. juncea. Nematode multiplication rates (Pf/Pi) were lower in I. aquatica (0.64) and C. endivia (1.1), but higher in B. oleracea var. gongylodes (2.54). Considering these results, I. aquatica is suitable for the rotation crop with lettuce until better rotation crops developed.

2019년 Paratylenchus projectus에 의한 심각한 상추 피해를 국내 처음으로 보고하였다. 상추 시설재배지에서 P. projectus 밀도를 낮출 수 있는 고소득 윤작작물을 탐색하고자 십자화과(Brassicaceae)에서 6종; 갓(leaf mustard, Brassica juncea), 경수채(kyona, B. rapa subsp. nipposinica), 브로콜리(broccoli, B. oleracea var. italica), 청경채(bok choy, B. rapa subsp. chinensis), 케일(kale, B. oleracea var. viridis), 콜라비(kohlrabi, B. oleracea var. gongylodes), 국화과(Asteraceae)의 2종; 엔다이브(endive, Cichorium endivia), 치커리(chicory, C. intybus), 매꽃과(Convolvulaceae)의 1종인 공심채(morning glory, Ipomoea aquatica) 등 총 9종을 윤작시험에 사용하였다. 각 엽채류를 직경 10 cm 토화분에 심고 침선충 접종(3,000 P. projectus/100 ㎤ soil) 및 비접종으로 나누고 각 처리별 10반복으로 하여 온실에서 재배하고, 100일 후 식물의 생육, 초장, 무게, 엽수, 뿌리무게, soil plant analysis development, 선충 밀도를 조사하였다. P. projectus를 접종한 모든 작물은 무처리에 비하여 생육이 감소하였다. 지상부 무게를 기준으로 하여, 브로콜리와 갓이 56-66%로 가장 감수율이 컸고 치커리와 공심채의 수량 감수가 30-35%로 비교적 감수율이 적었다. 또한 선충의 증식률(Pf/Pi 비율)도 콜라비의 2.54에 비하여 엔다이브는 1.1, 치커리는 1.35, 공심채는 0.64로 비교적 낮게 나타났다. 따라서 이번 실험에 의하면, 상추 재배지의 윤작작물로는, 비록 충분하지는 않지만 효과적인 윤작작물을 찾기 전까지는, 다른 엽채류에 비하여 수량 감수가 비교적 적고, 선충의 증식률이 가장 낮은 공심채가 상추재배지의 윤작작물 대안일 것으로 판단된다.

Keywords

References

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