• The Inventors News
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• no.54
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• pp.1-16
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• 2007

한국여성경제단체연합, 여성경제계 위해 공식 출범/발행인 칼럼/'마드리드 출원제도' 적극 활용 상표 침해 줄여라/일본 특허출원 심사기간 단축된다/기업.연구소 신입사원75%, 특허 관련 지식 전무/'주몽'이계인 씨 산자부 홍보대사 위촉/특허등록세, 신청 다음날 내도 된다/특허청, 6시그마 공공부문 혁신 주도/아듀 2006 한국여성발명협회 결산/자문위원 칼럼/로봇시장에도 브랜드 선점 열풍/농산물도 발명특허 상표 등록 시대/도소매업도 서비스업으로 출원 가능/기름대신 물 사용한 자동차, 항공기 현실화/반도체 배선 기술 특허 출원 상승세/자동차는 모바일 엔터네이너/'적외선 감지기술' 우리 생활속으로/서울반도체.바론테크, 일본 특허분쟁 승소/하나TV, 특허권 침해 피소/삼성전자, 분쟁.경쟁 대응위해 특허조직 통합/신한다이아몬드 일본 MDI 특허분쟁 승소/미니인터뷰/나노기술 응용한 디스플레이 특허출원 급증/미국의 두 배인 '휴면 특허', 대책 마련 시급/특허법원 "사용횟수 적다고 상표취소 못해"/종자번식 유전자 변형식물도 특허출원 가능/변리사 1차 시험 합격자 대폭 축소/역사 속의 발명품/하루 10분 발명교실/특허Q&A/신년인터뷰/화장하는 방법도 특허 받는다/'취업에서 결혼까지' 올인원 시스템 화제/아이디어 착상 및 발명 기법/아줌마의 힘이 발휘될 때까지 발명 또 발명/버뱅크의 식물 품종 개량/미국 청년, 몸짱 선탠용 티셔츠 발명/스위스, 국가경쟁력 1위의 비밀/저지방식,'유방암' 제발 위험 감소/서울대, 세계최초 암캐 복제 성공/국가 R&D 특허조사, 전체 R&D 부처로 확대/전국 초.중생 발명 글짓기.만화현상 공모전/특허청, 공공부문 성과주의 대통령상/한국여성발명협회 회원사 발명품 가이드

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.10a
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• pp.65-65
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• 2018

외래종이라 함은 도입종, 귀화종, 침입종을 통칭하는 용어로 특정한 인위적 목적 여부에 관계없이, 본래의 자생지가 아닌 외부에서 들어와 다른 생물의 서식지를 점유하여 번식하는 생물종을 지칭하는 것으로, 침입외래종은 생태계에 도입되고 확산되면서 생물다양성과 연계된 생태계서비스를 위협하거나 또는 악영향을 미치는 외래종을 의미하며, 위해우려종이란 국내에 유입될 경우 생태계 등에 위해를 미칠 우려가 있어 환경부장관이 지정 고시하는 생물종 (살아있는 것으로서 개체의 일부 알 종자 등을 포함)을 지칭한다. 본 연구는 환경부고시에 따른 한반도 미유입 환경위해우려종43종에 대하여 농업환경위해성 평가를 실시하고, 분류동정 기법을 개발하는 등 기초 자료를 제공하고자 수행되었다. 이를 위해, 해외식물표본 확인과 미국 현장조사를 실시하였으며, 우선적으로 8종의 미유입 식물에 대하여 보고하고자 한다. - Carduus acanthoides L. (Asteraceae), Carduus tenuiflorus W. Curtis (Asteraceae), Onopordum acanthium L. (Asteraceae), Chromolaena odorata (L.) R.M. King & H. Rob. (Asteraceae), Hydrocotyle ranunculoides L.f. (Apiaceae), Oenanthe pimpinelloides L. (Apiaceae), Ehrharta erecta Lam. (Poaceae), Paspalum conjugatum P.J. Bergius (Poaceae).

• Journal of Korean Society of Forest Science
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• v.86 no.4
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• pp.443-449
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• 1997

We examined the effect of pretreatments on seed germination, seedling growth, optimal seedling density of Phellodendron amurense. The seeds were carefully purified after collection in late Oct. from natural population at Mt. Chiri. For the evaluation of pretreatment effects, seeds were sowed in an experimental nursery after being stored in open ground($2{\sim}8^{\circ}C$) with soaking in 20% $H_2O_2$, 50-fold pon-pon solution, cold moist stratification in refrigerator($2{\sim}4^{\circ}C$) and dry storage in roam temperature($4{\sim}18^{\circ}C$), respectively, For the effect of growth density of seedlings, seedlings germinated in nursery were precisely controlled with 53, 104, 220, 380 seedlings per $m^2$. Among pretreatments for the promotion of germination rate, pon-pon treatment(68.8%) was highest, the others were higher than that in dry storage(2.3%), and these seed pretreatment methods were significantly different at 1% level. The height growth of seedlings showed the most vigor from Jun.12 to Jul. 8, and from Jul.20 to Aug. 2, and it reached to 72.8% of height growth. In case of 1-0 seedling, although seedling density per $m^2$ was increased, seedling growth was decreased. The optimal seedling density was 104 seedlings per $m^2$. The standard seedlings for plantation were above height 55cm, root collar diameter 8.1mm, and root length 21cm. These results demonstrated that seed of P. amurense requires stratification for the germination promotion.

• Journal of Bio-Environment Control
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• v.27 no.1
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• pp.86-93
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• 2018

This present study was conducted to develop the domestic cultivation kit using water celery(Oenanthe Stolonifera DC.) seed. As the result of germination rates in 3 type inbred lines, the IT 232354 had the highest initial germination rate and final germination rate, and was selected as the inbred line to be used in the cultivation kit. The development of the domestic cultivation kit was carried out using the IT 232354 seeds. It was possible to cultivate up to 3 times harvest using the same root in this cultivation kit, though the growth decreased rapidly in the $4^{th}$ cultivation. As a result of investigating the effects of the type of nutrient solution on growth of water celery, the overall growth was the lowest in the nutrient solution for Oenanthe Stolonifera DC.(N.S.D.). The shoot growth was similar to that of nutrient solution for leaves and stem vegetables (N.S.L.S.) and amino acid fermentation by-product liquid (A.F.B.L.), however in the root growth, the N.S.L.S. was more effective than A.F.B.L. When it was harvested 4 times consecutively after 1 time of planting, the last survival ratio of A.F.B.L. was 100% while their ratios were 96.4% and 49.8% each for N.S.L.S. and N.S.D. For the growth by cultivation kit type, the hole type cultivation kit increased slightly compared to the 3 hole type cultivation kit in the $1^{st}$ and $2^{nd}$ harvest, but there was no difference in the $3^{rd}$ and $4^{th}$ harvest. Total yield of one cultivation kits showed the 3 hole type cultivation kit is much higher than the 2 hole type cultivation kit. According to the results of this experiment, it is possible to harvest three times by planting one times if it was cultivated using N.S.L.S. and A.F.B.L. in the 3 hole type cultivation kit.

• Korean Journal of Weed Science
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• v.3 no.1
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• pp.14-22
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• 1983

To study ecological characteristics of Cyperus serotinus occuring in Korea its propagules were collected from 6 locations from the northern part to the southern part of Korea (Chuncheon, Suweon, Iri, Jeonju, Gwangju, Milyang) in 1981, cultured and replanted 4 times (May 20, June 5, June 20, July 5) in 1982. They flowered from August 10 to August 29 in the plants planted on May 20 and from August 22 to September 4 in the plants planted on July 5. Plant height, number of tillers and top fresh weight were 85-100cm, 375-1,500 tillers/$m^2$ and 500-1,750g/$m^2$, respectively, when they were planted on May 20, and 58-67cm, 300-625 tillers/ $m^2$ and 125-250g/$m^2$, respectively, when they were planted on July S. Weight of seeds and number of rhizomes per plant were 20-50g/$m^2$ and 20.75-61, respectively, whey, they were planted on May 20, and 5-17.5g/$m^2$ and 51.5-80.25 when they were planted on July 5. Local collections showed. the same morphological characteristics at the level of species identification, but there existed variations among the local collections. Cyperus serotinus from Chuncheon and Suweon were longer in the length of inflorescence, than those from Gwangju and Milyang and rhizomes from Chuncheon and Suweon were thicker than the others. Each of local collections may be regarded as different ecotype based on the above mentioned differences in morphology, growth and flowering response to the planting date. The results appear to imply that Cyperus serotinus weeds occuring in various locations of Korea are different one another in competitive ability with rice crop.

• Korean Journal of Environment and Ecology
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• v.33 no.6
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• pp.686-694
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• 2019

This study was carried out to identify the long-term changes to beech forest due to climate change in Ulleung-do. To study the traits of the stand structure of beech forest with micro-topography, we investigated the distribution of the basal area, important values, and indicated species in a small ridge between Albong basin and Seongin-bong peak, and 1-ha stands (20 m × 20 m, 25 sites) dominated beech species including on the upper slope and valley parts. The result showed that the indicator species characterizing the vegetation communities were Tsuga sieboldii, Rhododendron brachycarpum, and Mitchella undulata in the small ridge and Celtis jessoensis, Dryopteris crassirhizoma, and Ulmus laciniata in the valley part. Moreover, the individuals with the total DBH < 10 cm were more predominant in the small ridge and upper slope than in the valley part, the individuals with DBH = 10-25 cm were predominant in the small slope, and individuals with DBH = 25-45 cm and DBH > 45 cm were predominant in the upper slope. The reason for the predominant distribution of beech stand with DBH<10 cm in all terrains is suggested to be germination by nutritional propagation rather than secondary succession caused by artificial disturbances and seed propagation.

• Korean Journal of Organic Agriculture
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• v.22 no.1
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• pp.129-145
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• 2014

To evaluate the potential of Hypochoeris radicata L. for the development of environment-friendly organic materials, its growth characteristics, allelopathic effects and antifungal activity was investigated. The growth characteristics of H. radicata L. was investigated by measuring comparative number of shoot and flower, and the diameters of clones in mowing areas and non-mowing areas, respectively. As a result, the number of shoot and flower, and diameters of clones of H. radicata L. grown in mowing areas were much higher than those grown in non-mowing areas. Water extracts of H. radicata L. inhibited seed germination, and shoot, root and root hair growth of 14 test plants including Trifolium pratense, Festuca myuros, Bidens bipinnata and finally reduced heir biomass remarkably. The inhibitory effect of the extract was different depending on the kind and the part of tested plants. The extracts showed high antifungal activity against Pythium spp. and Phytophthora However, it showed comparably less antifungal activity against Rhizoctonia solani than Pythium spp. and Phytophthora. In conclusion, cutting H. radicata L. resulted increase of its vegetative and seed propagation and helped it to form large colony. Also it had an effect on growth of microbes and germination and growth of other plants. Therefore H. radicata L. holds the competitive dominant position in plant ecosystem in Jeju Island and it can be used as candidate of environment-friendly organic materials.

• Korean Journal of Ecology and Environment
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• v.50 no.1
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• pp.116-125
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• 2017

Alpine plants with a scarcity of pollinators in harsh environments have been believed to undergo selfing for reproductive assurance; however, contradictory evidence is also available. Snowmelt regimes in alpine areas function to change life history characteristics of alpine plants such as flowering time and duration; yet the effects of snowmelt regimes have never been tested in alpine plants in Korea. This study was conducted to investigate the dichogamy, mating systems, and flowering characteristics of Megaleranthis saniculifolia populations [early and late snowmelt plots (ESP and LSP, respectively)] in a subalpine area of Sobaeksan Mountain in Korea. M. saniculifolia exhibited incomplete protogyny in that despite early maturation of pistils, maturation times of pistils and stamens within flowers were partly overlapped. Control and hand-outcrossing treatments produced significantly higher number of follicles and seeds per flower than autonomous and hand-selfing treatments. Based on the aggregate fruit set, the auto-fertility index (AI) and self-compatibility index (SI) were 0.33 and 0.50, respectively. Snowmelt occurred 10 days earlier in ESP than in LSP, thereby ESP and LSP showed distinct differences with regard to flower longevity and season, but showing no difference in peak flowering dates. We concluded that M. saniculifolia is an incomplete protogynous and largely outcrossing plant requiring pollinator service. Temporal variation in snowmelt time and subsequent changes in flowering characteristics under climate change may further threaten the population persistence of M. saniculifolia which has already been designated as endangered species in Korea.

• Korean Journal of Plant Taxonomy
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• v.38 no.4
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• pp.573-582
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• 2008

We report a newly found natural habitat of Abeliophyllum distichum in mountainous slope range of Yeongdong-gun, Chungbuk Province. Abeliophyllum distichum Nakai is one of the Korean monotypic endemic species. Natural growth habitats of this species have been recorded from seven sites up to now, and all of the natural habitats are located in middle (Chungbuk Prov.) and middle west (Jeonbuk Prov.) parts of South Korea. Among the previously recorded seven natural habitats, six sites have been designated as Korean national monuments and protected with in situ conservation. New natural habitat of A. distichum is located on northwest slope of stiff hillock area beside the small stream, Seolgye-ri, Yeongdong-eup, Yeongdong-gun, Chungbuk Province. Total growing area is nearly $3,000 m^2$. It is 10-25 cm in soil depth and pH 5.0-6.5 in soil acidity in that area. And many of A. distichum are clustered with 2-5 individuals extended by stoloniferous asexual reproduction. And the total numbers of A. distichum are about 700 individuals with only typical white flowers, and the ratio between pin type and thrum type is 37% and 63%, respectively. The huge population of A. distichum is growing with Quercus mongolica-Fraxinus rhynchophylla association in a mixed forest, and it shows high affinity with Stephanandra incisa, Ligustrum obtusifolium, Euonymus alatus for. ciliatodentatus, and Smilax sieboldi.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.82-82
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• 2019

황해쑥(Artemisia argyi Lev. et. Vnt)은 국화과의 다년생 초본 식물로서 쑥, 산쑥과 함께 건조한 것이 애엽이라는 생약재로 쓰이며 2016년 기준 전국적으로 81 ha에서 871톤이 생산되고 있다. 주요 유효성분으로 Eupatilin, Jaceosidin 등이 있으며 위궤양에 효과가 있다고 알려져 있어 최근에는 스티렌정 등 신약원료로 각광 받고 있다. 황해쑥은 종자번식 뿐만 아니라 포복경을 이용한 영양번식이 가능하며 현재까지 '섬애' 등 1품종이 개발되어 있으나 농가와 산업체가 요구하고 있는 수량성 또는 Eupatilin 등 성분함량이 높은 품종개발이 필요하다. 국내 연구 결과를 보면 대부분 년 1회 수확을 기준으로 연구되어 왔으나 실제로는 년 2회 수확하는 경우가 더 많다. 따라서 본 실험에서는 년 1회 뿐만 아니라 년 2회로도 수확하여 조사하였다. 시험재료는 AA1801 등 7계통 이며, 시비량은 10 a 당 질소 15.3 kg 인산 20 kg 가리 5 kg이고, 흑색 비닐을 피복한 후 조간 30 cm 주간 15 cm로 하였다. 시험구배치는 난괴법 3반복으로 하였으며 포복경을 5 cm로 잘라 4월 19일에 정식하였다. 1회 수확 시에는 8월 12일, 2회 수확 시에는 6월 17일, 9월 19일에 수확 하였다. 년 1회 수확 시 계통 별 생육특성을 보면, 초장은 202.4~231.5 cm로 평균 213.6 cm 였으며 경경은 10~12.14 mm로 평균 10.9 mm 였다. 분지수는 32.6~37.3개로 평균 35.2개 였으며 엽병장, 엽장, 엽폭은 2.4~4.2 cm, 9.3~12 cm 9.2~12.2 cm로 평균 3.3 cm, 10.7 cm 그리고 10.9 cm 였다. 전초의 생중량과 건중량은 각각 4.9~6.9 kg, 1.8~2.7 kg로 평균 5.5 kg, 2.1 kg 이였다. 특히 AA1902는 다른 계통에 비해 분지수는 적었으나 초장이 크고 경경이 굵었으며 생중량과 건중량도 가장 무거웠다. 년 2회 수확 시 전초의 생중량과 건중량은 각각 5.1~6.2 kg, 1.7~2.0 kg로 평균 5.6 kg, 1.8 kg 이였다. 수량성으로 봤을때는 AA1902는 1회 수확에 적합하며 AA1801, AA1802는 2회 수확 시 생중량과 건중량이 무거웠다. 또한 AA1903의 경우 수확 회수와 상관없이 수량성이 높은 계통으로 판단되었다. 본 자료는 황해쑥 품종육성의 기초자료로 활용하고자 한다.