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http://dx.doi.org/10.5423/RPD.2017.23.1.49

Correlation between the Dieback Ratio and Cultivation Environment for Apple Orchards Infected by Soil-Borne Diseases in Chungbuk Province  

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)
Publication Information
Research in Plant Disease / v.23, no.1, 2017 , pp. 49-55 More about this Journal
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.
Keywords
Apple tree; Cultivation environment; Dieback; Root rot; Soil-borne diseases;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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