• KOREAN JOURNAL OF CROP SCIENCE
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• v.31 no.4
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• pp.493-498
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• 1986

In order to evaluate the effect of various cultural methods developed during last 30 years on grain yield of wheat and barley and structure of plant stand for uptake of nutrient and water, solar energy use and com-petitive capacity with weed, 10 kinds of cultural practices were compared in the clayey upland soil. Row fertilization is more effective for uptake of N,P and K than rotary fertilization. Weed occurrence was deeply related with width of non-seeded area in the row and affected yield decrease. Winter injury was more serious in the cultural practices with thick plant community than in those with isolated individual plant. Root distribution was more remarkable in drill seeding or broadcasting than row seeding and had positively correlated with water consumption of barley.

• Korean Journal of Plant Resources
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• v.20 no.2
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• pp.212-215
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• 2007

To select the most suitable variety of wanggol for productivity in first and second cropping. Imsil and Gogseong varieties of wanggol with first and second cropping were shown to have the highest productivity in comparison to other varieties of wanggol used in this experiment. It showed relatively early maturing, high stem length, number of stem, and dry cortex yield. Therefore, it were concluded that Imsil and Gogseong of wanggol with first and second cropping were the most suitable varieties with high yield in the southern part of Korea.

• Proceedings of the Plant Resources Society of Korea Conference
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• 1997.10b
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• pp.39-39
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• 1997

• Korean Journal of Plant Resources
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• v.14 no.1
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• pp.24-31
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• 2001

The medicinal constituents contained in Cinidil Rhizoma and Angelicae Radix cultivated in Korea and China, were compared by confirming their qualities. From Cinidil Rhizoma and Angelicae Radix cultivated in Korea and China, butyl phthalide, senkyunolide, and ligustilide etc. phthalides were identified by GC/CMS analysis. Through GC/FID analysis, the senkyunolide content of Cinidil Rhizoma cultivated in Korea was similar to that cultivated in China. The ligustilide content of Ciniail Rhizoma cultivated in Korea was more than that cultivated in China, except for one cultivated at Ankuk province. In the case of Angelicae Radix, the ligustilide content of that cultivated in Korea was more than one cultivated at Yeungil province in China. As for quality, Cinidil Rhizoma and Angelicae Radix cultivated in Korea were better than those cultivated in China since Chinese products possessed more butilidene phthalide photo-decomposed from ligustilide, caused by long storage during the circulation processes, than that of the domestic products.

• Proceedings of the Korean Society of Organic Agriculture Conference
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• 2009.12a
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• pp.319-319
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• 2009

관행재배 농산물에 대한 유기재배 농산물의 우수성이 구전되고 있으나 객관적인 과학적 데이터가 부족한 실정이다. 그래서 본 연구에서는 한국인이 주식으로 하고 있는 쌀(동진 1호)을 대상으로 생산이력이 분명한 유기 및 관행재배 시료를 이용하여 독자적으로 확립한 분석법을 이용해 유기 및 관행재배 쌀에 함유된 생리활성성분의 함량 비교를 행하였다. 생리활성성분 분석은 $\gamma$-oryzanol, $\beta$-sitosterol 및 tocopherol류를 대상으로 행하였다. 쌀에 함유된 주요 4종의 $\gamma$-oryzanol류의 동정을 위해 그 4종 화합물들을 ESI-MS 및 NMR 분석을 행한 결과, ODS 컬럼 상에서 cycloartenyl ferulate, 24-methylene cycloartenyl ferulate, campesteryl ferulate 및 $\beta$-sitosteryl ferulate 순으로 용출됨을 확인하였다. 동정된 각 성분들을 HPLC로 분석한 결과, cycloartenyl ferulate와 $\beta$-sitosteryl ferulate의 함량은관행보다 유기재배 쌀에서 유의(p<0.05)하게 높은 값을 보였다. 또한 $\gamma$-oryzanol 중 24-methylene cycloartenyl ferulate와 campesteryl ferulate의 함량은 유의차는 인정되지 않았으나 관행보다 유기재배 쌀에서 더 높은 경향을 보였다. 그리고 $\beta$-sitosterol 함량에 있어서는 유의차가 인정되지 않았으나 관행보다 유기재배 쌀에서 더 높은 경향을 나타냈다. 관행재배와 유기재배 쌀의 tocopherol류의 함량을 분석한 결과, $\alpha$-tocopherol의 함량에 있어서는 관행과 유기재배 쌀 간의 유의차가 관찰되지 않았고, $\beta$- and/or $\gamma$-tocopherols의 함량에 있어서는 유기재배 쌀에서 더 높은 경향이 관찰되었다. 이처럼 쌀에 함유된 생리활성 성분과 그로 인해 발휘되는 기능성 측면에 있어서 유기농산물의 우수성은 유기농산물 재배 농가의 수익 창출에 도움이 되는 홍보자료 제공 및 식품 기능학적 측면에 있어 중요한 기초자료로 활용될 수 있으리라 기대된다. 그러나 본 결과는 본 실험에서 대상으로 한 시료에 한정될 수 있으며, 유기재배 방법과 재배환경 및 조건에 따라 다양한 결과가 얻어질 수 있음에 주의가 요구된다.

• Korean Journal of Plant Resources
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• v.9 no.3
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• pp.230-238
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• 1996

The experiment was carried out to find aromatic constituent composition of Codonopsis lanceolata species grown in the native(Mt. lrwol, Youngyang, Kyungpuk Province) and the cultivated(Andong, Kyungpuk Province) areas from 1994 to 1995. The results were as follows : Air temperature and soil temperature at the native area were lower to $2{\sim}3^{\circ}C$, and to $2^{\circ}C$ than the cultivated area. Organic matter contents of plant grown at the native area higher than that of plants at the cultivated area by 4.8%. Crude protein content was higher in plant grown at native area than the plant grown in wild area but in case of crude saponin, plants grown at wild area was higher than that of native area. For inorganic element contents. K content is much higher than in the domesticated area as compared with wild area above ten over. And other elements such as Cu, Mn, Na and Mg were not remarkably different in contents. In the free amino acid compositions, argine was highest compared with other free amino acids, and Arginine content was higher in dometicated area. Recovery yield of essential oil of wild species grown at the cultivated showed 0.005%, but domesticated species was 0.004%. But both species at the native area were the same by 0.004%. Although composition of aromatic constituents in the two areas and species varied, total aromatic constituent was 21 kinds. Most aromatic constituents were aliphatic alcohols such as 1-hexanol, eis-3-hexanol, and trans-2-hexanol occupied by approximately 90% over. But three constituets as amylalcohol, furfuryl acetate, and 2-methoxy-4-vinyl phenol(MVP) were detected only in domesticated species.

• Korean Journal of Environment and Ecology
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• v.13 no.3
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• pp.261-270
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• 1999

낙산복원사업 대상지의 생태계 회복을 위한 계획수립의 기초자료로 사용하기 위하여 부지 내 식생조사를 통해 자연환경을 평가하였다 현존식생도 녹지자연도 및 Hemeroby 등급을 통해 자연성을 평가한 결과 많은 면적이 산림으로서의 기능을 상실한 인공화된 지역이었다. 식생이 존재하는 지역 중 산림의 형태를 유지한 지역은 아까시나무군락을 유지하고 있었고 기타 지역은 휴경지, 논.밭 잡초군락이며 동시에 ruderal 식물군락으로 판명되었다. 성과주변에 식재한 수목은 총 67종 1,243개체였으며 그중 자생종이 27종(40.3%) 544개체(43.8%)였고 도입종과 귀화종 재배종이 각각 17%, 8.8%, 15.4%로 나타났다. 생활형 분석에서는 1,2년생 초본식물이 47%를 차지하였고 귀화율은 24.1%로 나타나 매우 불안정하고 교란된 환경인 것으로 판단되었다.

• Journal of Mushroom
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• v.8 no.3
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• pp.96-101
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• 2010

The purpose of this study was to evaluate the mineral difference about Phellinus from cultivated on mulberry, oak and elm by ICP test. The major mineral components were Ca, K, Fe, P, Al and Na. In Ca, fruiting bodies from cultivated on mulberry were shown about 2~4 times highest, and in case of K was fruiting bodies from cultivated on oak shown about 2 times highest as against the other sample groups. Especially, Na was fruiting bodies from cultivated on oak shown about 10 times highest as against the other sample groups. In this study, fruiting bodies on P. linteus and P. baumii from cultivated the same kind of material lumber are similar mineral components, and we can't really find much their difference. As a results, what kind of mineral component content had showed depend on material lumber.

• Korean Journal of Environmental Biology
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• v.27 no.1
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• pp.40-47
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• 2009

Heavy reliance on organosynthetic chemical methods to control agricultural pest tends to deteriorate and lower fertility of soil. We studied annual occurrence of earthworm in environment-friendly agroecosystem and attempted to determine the degree of soil contamination. Candidate bioindicators of earthworm in agroecosystem were selected through analysis of earthworm diversities. Depending on the degree of pesticide use, the fields were devided into conventional, less-pesticide, pesticide free, and organic fields. A nearby field not in agricultural use was chosen as a control. This study was carried out in the greenhouses (lettuce and grape) in 2006 and in orchards (apple, pear, peach, citrus and grape) in 2007. Earthworm was collected from 50 $\times$ 50 $\times$ 10 cm$^3$ of respective soil. We found 11 species from 5 genera and 3 families, and 12 species from 4 genera and 3 families in the greenhouses and in orchards, respectively. The contents of organic matter in soil in the greenhouses were variable but quite less so in orchards. Amynthas heteropodus occurred most frequently in both sites suggesting that it could be adopted as a bioindicator in agroecosystem in Korea.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.10a
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• pp.117-117
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• 2018

강황(Curcuma longa L.)은 생강과(Zingiberaceae)에 속하는 다년생 아열대 초본 식물로, 약 40여 종이 존재한다고 알려져 있으며, 특유한 맛과 향기가 있어 세계적으로 널리 이용되고 있다. 현재 국내에는 전남 진도를 중심으로 경남, 제주 등으로 재배지역이 확대되고 있으며, 생산량이 증가하는 것으로 나타나고 있다. 한편, 강황은 우리나라에서 한약재와 식품원료로 구분하여 사용되고 있으며, 한약재 강황은 대한 민국약전을 근거로 규격품 한약재로서 품질관리가 이루어지고 있다. 특히, 국내산 강황은 대한민국약전의 지표성분 함량(쿠르쿠민, 데메톡시쿠르쿠민 및 비스데메톡시 쿠르쿠민의 합 3.2 % 이상)의 기준 규격에 미달되어 대부분 식품원료로 사용되고 있는 실정이다. 따라서, 본 연구는 강황의 비닐하우스 재배를 통해 한약재 활용 가능성을 알아보기 위해 수행되었다. 본 시험은 한약진흥재단 한약자원개발본부 시험포에서 수행되었으며, 강황 종근은 진도 재배 농가를 통해 수집되었다. 2017년 4월 20일에 일반 노지와 비닐하우스에 각각 정식하였다. 수확은 정식 후 200일에 각 실험구의 강황을 채취하여 초장, 엽수, 경경, 경수, 생체중, 건물중 등 생육 특성을 조사하였으며, 쿠르쿠민 함량 분석은 식품의약품안전처 고시법에 따라 HPLC를 이용하여 동시 분석 하였다. 하우스 재배가 강황의 생육에 미치는 영향을 살펴본 결과, 초장은 하우스 재배가 노지 재배에 비해 약 65% 높게 나타났으며, 엽수, 경경, 경수는 약 15~68% 높게 나타났다. 쿠르쿠민 함량은 하우스 재배가 노지 재배에 비해 약 53% 높게 나타났지만, 대한민국약전의 기준 규격에는 미달되었다. 따라서 본 연구 결과는 강황을 비닐하우스에서 재배할 때 생산성과 지표성분을 각각 68%, 53% 증수시켰지만, 한약재로 활용할 수 있는 기준 규격에는 못 미치는 것으로 나타났다. 향후, 강황 해외 지역종 수집 및 재배를 통하여 한약재 품질규격에 적합한 국내산 강황 재배기술 개발을 위한 기초자료로 활용이 가능할 것으로 사료된다.