Proceedings of the Korean Society of Crop Science Conference (한국작물학회:학술대회논문집)
- 2017.06a
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- Pages.182-182
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- 2017
Effect of agricultural materials of traditional agriculture on control of rice blast (Pyricularia oryzae)
- Jang, Se Ji (Department of Oriental Medicine Resources, Sunchon National University) ;
- Yun, Young Beom (Department of Oriental Medicine Resources, Sunchon National University) ;
- Kim, Yeon Ji (Department of Oriental Medicine Resources, Sunchon National University) ;
- Jeong, Jang Yong (Department of Oriental Medicine Resources, Sunchon National University) ;
- Kuk, Yong In (Department of Oriental Medicine Resources, Sunchon National University)
- Published : 2017.06.04
Abstract
The objective of this research was to determine controlling effects on rice blast (Pyricularia oryzae) in rice plants by using plant extracts from different extraction methods (water, boiling water, fermentation, and ethanol) from 38 agricultural materials of traditional agriculture. Rice blast was completely suppressed by 3% ethanol extracts in Rheum palmatum roots, and suppressed 97% and 77% by 10% ethanol extracts in onion bulb and pine tree leaves, respectively in a laboratory test. However, other agricultural materials showed low effect on suppression of rice blast. Additionally, in a seedling test, rice injury of two cultivars (Ilmibyeo and Hopyoungbyeo) against rice blast was reduced 40-71%, 29-63%, and 23-63% by 5 and 10% ethanol extracts in Rheum palmatum roots, onion bulb, and pine tree leaves, respectively, compared with non-treated controls. Rice injury of two cultivars (Ilmibyeo and Hopyoungbyeo) against rice blast was reduced by 21-55%, 23-46%, and 5-39% in response to Rheum palmatum roots, onion bulb, and pine tree leaf applications at 100, 200 and