Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Correlation between the Dieback Ratio and Cultivation Environment for Apple Orchards Infected by Soil-Borne Diseases in Chungbuk Province

충북에서 사과 주요 토양병에 의한 고사율과 재배환경과의 상관관계

  • Lee, Sung-Hee (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research & Extension Services) ;
  • Kwon, Yeuseok (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research & Extension Services) ;
  • Shin, Hyunman (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research & Extension Services) ;
  • Kim, Ik-Jei (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research & Extension Services) ;
  • Nam, Sang-Young (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research & Extension Services) ;
  • Hong, Eui Yon (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research & Extension Services) ;
  • Kim, Daeil (College of Agriculture, Life & Environment Sciences, Chungbuk National University) ;
  • Cha, Jae-Soon (College of Agriculture, Life & Environment Sciences, Chungbuk National University)
  • 이성희 (충청북도농업기술원 연구개발국) ;
  • 권의석 (충청북도농업기술원 연구개발국) ;
  • 신현만 (충청북도농업기술원 연구개발국) ;
  • 김익제 (충청북도농업기술원 연구개발국) ;
  • 남상영 (충청북도농업기술원 연구개발국) ;
  • 홍의연 (충청북도농업기술원 연구개발국) ;
  • 김대일 (충북대학교 농업생명환경대학) ;
  • 차재순 (충북대학교 농업생명환경대학)
  • Received : 2016.10.17
  • Accepted : 2017.01.06
  • Published : 2017.03.31
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Abstract

The previous study showed that die-back of apple trees caused by soil-borne diseases was significantly high in the apple orchards in Chungbuk province. The correlation between dieback ratio and cultivation environment in apple orchards infected by soil-borne diseases was investigated in this study. The dieback ratio of five orchards diseased by violet root rot and five places infected by white root rot showed significantly positive correlation with Ca content and available $P_2O_5$ content in soil, respectively. Whereas, the dieback ratio of fourteen orchards diseased by Phytophthora root rot was not significant. Subgrouping of cultivation environment analysis showed that the slope degree of orchard and the number of fruit setting also affected the dieback ratio caused by violet root rot and Ca content in soil also affected the dieback ratio caused by white root rot. It showed that the slope degree, soil texture, Mg and Ca content affected the dieback ratio caused by Phytophthora root rot. These results can be applied to reduce die-back ratio by the modification cultivation environment for each soil-borne disease.

이전 연구에서 충북지방의 사과과수원에서 토양병에 의한 사과나무 고사율이 매우 높게 나타났다. 본 연구에서는 토양병에 의한 사과나무 고사율과 재배환경과의 상관관계를 조사하였다. 자주날개무늬병에 의한 사과나무 고사율은 토양 내 칼슘 함량과 유의하게 정의 상관관계를 보였고, 흰날개무늬병에 의한 사과나무 고사율은 토양 내 유효 인산 함량과 유의하게 정의 상관관계를 보였다. 반면에 역병 피해 사과원 14개소에서는 사과나무 고사율과 재배환경과는 유의성 있는 상관관계가 없었다. 세분화한 재배환경과의 상관관계 분석결과는 토양 내 칼슘함량 외에 과원 경사도와 착과수가 자주날개무늬병에 의한 고사율에 영향을 미쳤고, 토양 내 유효인산 함량 외에 칼슘 함량이 흰날개무늬병에 의한 고사율에 영향을 미쳤다. 과원경사도, 토성, 마그네슘과 칼슘 함량이 사과역병에 의한 고사율에 영향을 주었다. 이 결과는 사과과원의 재배법 변경에 의해 토양병에 의한 사과나무 고사율을 감소시키는 데 적용 가능할 것이다.

Keywords

References

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