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Sci Rep. 2018 Feb 1;8(1):2136. doi: 10.1038/s41598-018-20124-7.

Continuous cropping of endangered therapeutic plants via electron beam soil-treatment and neutron tomography.

Author information

1
Korea Atomic Energy Research Institute, 1045 Daedeokdaero Yuseong-gu, Daejeon, 303-353, Korea. cmsim@kaeri.re.kr.
2
Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon, 305-764, Korea. cmsim@kaeri.re.kr.
3
Geumsan Ginseng & Medicinal Crop Experiment Station, Chungnam, 312-831, Korea.
4
Specialized Crop Research Institute, Jinan gun, Jeonbuk, 567-807, Korea.
5
National Institute of Horticulture & Herb Science, Bisani 80, Eumseong, Chungbuk, 389-873, Korea.
6
Bioenergy Research Institute, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju, 500-757, Korea.
7
Institute of Jinan Red Ginseng, Jinan gun, Jeonbuk, 567-801, Korea.
8
Korea Atomic Energy Research Institute, 1045 Daedeokdaero Yuseong-gu, Daejeon, 303-353, Korea.
9
RIC for Next Generation Industrial Radiation Technology, Wonkwang University. 460, Iksan-daero, Iksan-si, Jeollabuk-do, 54538, Korea.
10
Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon, 305-764, Korea.
11
Plant Genomics and Breeding Institutes, Seoul National University, Gwanak-gu, Seoul, 151-921, Korea.
12
GBioMix Institute, 723-1, 2 Palbok-dong, Deokjin-gu, Jeonju, 561-844, Korea.
13
Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, 561-756, Korea.
14
King's College London, Palace Road, London, SE1 7EH, UK.
15
Nuclear Energy Corporation South Africa, 0001, Pretoria, South Africa.
16
Helmholtz Zentrum Berlin, 14109, Berlin, Germany.
17
Justus Liebig University Gießen, Schubertstr. 81, D-35392, Gießen, Germany. Bernd.Honermeier@agrar.uni-giessen.de.

Abstract

Various medicinal plants are threatened with extinction owing to their over-exploitation and the prevalence of soil borne pathogens. In this study, soils infected with root-rot pathogens, which prevent continuous-cropping, were treated with an electron beam. The level of soil-borne fungus was reduced to ≤0.01% by soil electron beam treatment without appreciable effects on the levels of antagonistic microorganism or on the physicochemical properties of the soil. The survival rate of 4-year-old plant was higher in electron beam-treated soil (81.0%) than in fumigated (62.5%), virgin (78%), or untreated-replanting soil (0%). Additionally, under various soils conditions, neutron tomography permitted the monitoring of plant health and the detection of root pathological changes over a period of 4-6 years by quantitatively measuring root water content in situ. These methods allow continual cropping on the same soil without pesticide treatment. This is a major step toward the environmentally friendly production of endangered therapeutic herbs.

PMID:
29391436
PMCID:
PMC5794772
DOI:
10.1038/s41598-018-20124-7
[Indexed for MEDLINE]
Free PMC Article

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