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http://dx.doi.org/10.11625/KJOA.2014.22.2.303

Herbicidal and Antifungal Activities of the aqueous extracts of Several Naturalized Plants  

Hyoun, Do-Gyoung (제주대학교 식물자원환경전공(농학과))
Song, Jin-Young (제주대학교 식물자원환경전공(농학과))
Kim, Tae-Keun (제주대학교 식물자원환경전공(농학과))
Jung, Dae-Cheon (제주특별자치도 농업기술원)
Song, Sang-Churl (제주특별자치도 농업기술원)
Kang, Young-Sik (제주대학교 식물자원환경전공(농학과))
Cha, Jin-Woo (제주대학교 식물자원환경전공(농학과))
Lee, Hee-Sean (제주대학교 식물자원환경전공(농학과))
Yang, Young-Hoan (제주특별자치도 한라산연구소)
Kim, Hyoun-Chol (제주특별자치도 한라산연구소)
Song, Chang-Khil (제주대학교 식물자원환경전공)
Publication Information
Korean Journal of Organic Agriculture / v.22, no.2, 2014 , pp. 303-319 More about this Journal
Abstract
The study researched germination of the plants and growth of experimented bacteria according to concentration of water extract in order to provide basic data for developing natural agricultural resources by using naturalized plants including Solidago altissima, Amaranthus retroflexus and Sida spinosa. As concentration of water extract increased, most of test plants showed a decrease in relative germinability. Sida spinosa(r=-0.540, p<0.01), Physalis wrightii(r=-0.693, p<0.01), Amaranthus retroflexu(r=-0.724, p<0.01), Solidago altissima(r=-0.728, p<0.01) and Eclipta prostrata(r=-0.779, p<0.01) showed tendency of decrease in relative germinative power in order, respectively. For average germination period, as concentration of the processed group increased, the time for germination increased (r = 0.769, p<0.01) and according to donor plants and test plants, there was a little difference. Also, as concentration of water extract of donor plant, length of above-aerial part(r=-0.587, p<0.01), length of underground part(r=-0.741, p<0.01), fresh weight(r=-0.574, p<0.01) and generation of root hair decreased. An then, for growth of test fungi according to concentration of water extract of donor plants, growths of Botrytis cinerea(r=-0.266, p<0.05), Diaporthe citri(r=-0.323 p<0.01), Colletotrichum gloeosporioides(r=-0.512, p<0.01), Pythiumultimum(r=-0.581, p<0.01) and Rhizoctonia solani(r=-0.806, p<0.01) were repressed in order, respectively. For total amount of content of phenol with herbicidal and Antifungal activities, S. altissima $17.3{\pm}0.5mg/g$, A. retroflexus $13.1{\pm}0.3mg/g$, P. wrightii $12.0{\pm}0.4mg/g$, S. spinosa $9.5{\pm}0.1mg/g$ and E. prostrata L. $4.1{\pm}0.1mg/g$ showed in order, respectively. As these results are summarized, donor plants which were naturalized, have competitive advantage because they release phenolic compounds with allelopathic effect and affect on germination, growth and fungi growth on underground flora compared to native plants and they have eligibility for natural herbicide and germicide.
Keywords
naturalized plants; allelopathic effect; herbicidal; antifungal activities; phenolic compounds;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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