• 한국식품조리과학회지
• /
• 제10권4호
• /
• pp.363-368
• /
• 1994

The study was carried out to investigate the proximate composition, amino acids, dietary fiber, ascorbic acid and minerals contents of seven edible wild vegetables; an Evening Primerose($S_1$), a Spiderwort($S_2$), the Flower of a Convolvulus($S_3$), So Ru Jaeng Yi($S_4$), Shoe Bi Rum($S_5$), O Yi Pul($S_6$), Jip Sean Na Mul($S_7$). Results as summarized as follows: 1. The moisture contents of samples were determined as 64.43~88.30% The largest amount of them was contained in a Spiderwort($S_2$) and the smallest was in a Jip Sean Na Mul($S_7$), 2. The crude protein contents of samples were determined as 2.71~8.10%. The largest amount of them was contained in a O Yi Pul($S_8$), the smallest was in the Spiderwort($S_z$). 3. A relatively large amount of total amino acids were determined in samples. The abundant amino acids existed in the samples were Glutamic acid(10%), Lysine(8%), Leucine(8%) and the content of Methionine was very low. The highest level of them was found in the Convolvulus($S_3$), 4,419.6 mg% and the lowest was Shoe Bi Rum($S_5$), 2,393.1 mg% 4. The Ascorbic acid contents of samples was determined as 55.99~31.8O mg. The highest level of them was found in the Jip Sean Na Mul($S_7$) and the smallest was in the Primerose($S_1$) 5. The mineral contents of samples were determined. A relatively large amount of K, Ca and Mg were found in the samples. Especially the level of Iron was higher than that of any other vegetables. 6. The contents of dietary fiber were determined as 31.8~79.9%. The highest level of them was found in the Convolvulus($S_3$) and the lowest was in the Spiderwort($S_2$). The highest level of them was found in the Convolvulus($S_3$) and the lowest was in the Spiderwort($S_2$). From the above mention, we can say that the contents of protein, fat, fiber, total amino acids and iron were abundant in wild grasses than that of any other wild and cultured vegetables. The contents of ascorbic acid, potassium, calcium and magnesium were similar and the moisture is significantly low compared with any other vegetables.

• 한국토양비료학회지
• /
• 제35권1호
• /
• pp.38-46
• /
• 2002

산국(Chrysanthemum boreale M.)은 국화과에 속하는 다년생 식물이며 우리나라에 널리 분포하는 자생식물자원으로서 오래 전부터 식용과 약용으로 널리 이용되어 왔다. 최근 건강에 대한 관심이 고조되면서 산국의 수요가 급증하고 있으나 자연채집을 위주로 하기 때문에 공급을 충당하지 못하고 있는 실정이다. 본 연구에서는 우수품질의 산국을 대량생산하기 위해 질소시비반응 시험을 실시하였다. 처리구는 질소수준에 따라 6처리구(0, 50, 100, 150, 200, $250kg\;ha^{-1}$)로 설정하였다. 이때 모든 처리구에서 기본적으로 $P_2O_5-K_2O=80-80kg\;ha^{-1}$을 시비하였다. 그 결과, 질소의 시비량이 증가할수록 수량이 증가하였다. 전체 산국을 건물중으로 하여 회귀곡선을 통해 추정한 결과 N $246kg\;ha^{-1}$였으며, 꽃의 수량은 N $226kg\;ha^{-1}$이였다. 꽃의 주요 아미노산은 proline이였고 질소의 시비량이 증가할수록 아미노산의 함량이 증가하였다. 이때 질소의 이용율은 41.5-61.8%였고 N100처리구에서 가장 높았다. Sespuiterpene계 화합물로서 우수한 혈압강하효과를 가지고 있는 물질인 Cumambrin A의 함량은 식물부위 중 꽃에 가장 많이 함유되어 있었다. 질소의 시비량이 증가할수록 Cumambrin A의 함량이 다소 감소하였으나 통계적 유의성은 인정되지 않았다. 꽃에서 Cumambrin A의 전체 함량은 산국의 수량증가에 따라 질소 시비량이 증가할수록 증가하는 경향을 보였다. 따라서 유효성분이 많이 함유된 양질의 산국재배를 위해 질소의 적정시비량은 $225{\sim}250kg\;ha^{-1}$ 수준으로 판단되었으며 포장시험을 통한 현장입증시험이 있어야 할 것으로 판단된다.

• 한국지하수토양환경학회지:지하수토양환경
• /
• 제20권6호
• /
• pp.73-84
• /
• 2015

Nine plant species were selected through vegetation survey at three military shooting ranges at northern Gyeonggi Province. Plants were germinated in normal soil and three seedlings were transplanted to a bottom sealed pot containing sandy loam soils contaminated with either RDX (291 mg/kg) or TNT (207 mg/kg). Planted, blank (without plant), and control (without explosive compound) pots were grown in triplicate at a green house for 134 days. During cultivation, transplanted plants exhibited chlorosis and necrosis in flower and leaf by explosive toxicity and stress. Only three plants, Wild soybean, Amur silver grass, Reed canary grass, survived in TNT treated pot, while seven plant species except for field penny cress and jimson weed, thrived in RDX treated pot. Appreciable amount of TNT (61.6~241.2 mg/g-D.W.) was detected only in plant roots. Up to 763.3 mg/g-D.W. along with 4-amino-2,6-dinitrotoluene, an intermediate of TNT, accumulated in the root of wild soybean. In addition, azoxy compounds, abiotic intermediates of TNT, were detected in TNT treated soils. RDX absorbed average 1,839.95 mg/kg in shoot and 204.83 mg/kg in root. Most of TNT in plant was accumulated in underground part whereas RDX was localized in aerial part. Material balance calculation showed that more than 95% of the initial TNT was removed in the planted pots whereas only 60% was removed in the blank pot. The amount of RDX removed from soil was in the order of Amur Silver Grass (51%) > Chickweed (43%) > Evening primrose (38%). Based on the results of pot cultures, Amur silver grass and Reed canary grass are selected as tolerant remedial plants for explosive toxicity.

• 한국초지조사료학회지
• /
• 제27권3호
• /
• pp.173-182
• /
• 2007

본 연구는 야생화 초지조성을 위한 잔디형 목초 및 야생화초종의 선정과 혼파조합구성에 대한 기초자료를 탐색하고자 몇 가지 잔디형 목초와 야생화초종을 공시하여 초기생육, 경엽 및 근중, 건물수량, 개화특성 및 기호성 등을 비교분석하였다. 공시초종은 잔디형 목초 5종{Kentucky bluegrass(Midnight), tall fescue(Millennium), perennial ryegrass(Palmer III), redtop(Barricuda) 및 creeping bentgrass(Crenshaw)}과 야생화 11종{Chrysanthemum leucanthemum L., Coreopsis lanceolata L., Rudbeckia bicolor Nutt., Dianthus chinensis L., Chrysanthemum lindicum L., Lotus corniculatus var. Japonicus Regel, Veronica linariaefolia Pallas, Aster koraiensis Nakai., Chrysanthemum zanadskii var. latilobum(Maxim.) Kitamura, Lythrum anceps Makino 및 Iris nertschinskia. Lodd}을 공시하였으며, 충남대학교 농과대학 초지시험포장에서 2005년 1월부터 2006년 12월까지 수행하였다. 공시된 잔디형 목초 중에서 상대적으로 야생화와 혼파가능성이 큰 초종은 Kentucky bluegrass이었으며, Kentucky bluegrass에 비하여 상대적으로 초기생육이 왕성하고 경엽과 근중이 높아 야생화초지를 조성하는 데 유리할 것으로 보이는 야생화는 Chrysanthemum leucanthemum L., Lotus corniculatus var. Japonicus Regel, Chrysanthemum zawadskii var. latilobum (Maxim) Kitamura 및 Lythrum anceps Makino 등으로 조사되었다. 이들 야생화는 꽃색, 개화시기 및 개화지속기간 등이 서로 중복되지 않았으며 가축에 의한 기호성도 대체적으로 양호한 결과를 보였다. 따라서 야생화초지의 조성을 위해서는 잔디형 목초는 야생화와의 경합력이 낮은 초종을, 반대로 야생화는 경합에서 유리한 초종을 선발하되 개화특성이 서로 다른 야생화를 다양화하여 혼파조합을 구성하는 것이 중요하다고 판단된다.

• 한국지역사회생활과학회지
• /
• 제13권2호
• /
• pp.13-24
• /
• 2002

The purposes of this study are $\circled1$ to define the characteristics of teenagers' activities related to buying gifts for commemorative events, $\circled2$ to provide useful guidance for farmers who commercialize agricultural products. This data was given from 288 students of middle and high school located in Gang-nam region of Seoul during 5.15~17, 2001. The major results have shown that 74% of the respondents had high interest in events, and 34% of them had given gifts to someone in that events of this year, and 89% of them bought chocolates and candies for presents. Most of them bought the presents for their friends including the same or the opposite sex (73%), and they preferred to goods which were packaged well. The best preferences among agricultural commodities by sorts were Kkul-tteok, In-jeol-mi, Glutinous rice cake, in kinds of rice cakes, Yak-gwa, Gang-Jeong, San-Ja in kinds of Han-gwa, Sik-hye in kinds of processed foods, and wild flower perfume or herb products in other kinds of processed products. on the basis of these results, it is proposed that various agricultural commodity gifts for teenager should be developed and popularized.

• Molecules and Cells
• /
• 제25권2호
• /
• pp.294-300
• /
• 2008

Cytokinins are essential hormones in plant development. $\underline{A}$rabidopsis $\underline{h}$istidine-containing $\underline{p}$hosphotransfer proteins (AHPs) are mediators in a multistep phosphorelay pathway for cytokinin signaling. The exact role of AHP4 has not been elucidated. In this study, we demonstrated young flower-specific expression of AHP4, and compared AHP4-overexpressing (Ox) trangenic Arabidopsis lines and an ahp4 knock-out line. AHP4-Ox plants had reduced fertility due to a lack of secondary cell wall thickening in the anther endothecium and inhibition of IRREGURAR XYLEMs (IRXs) expression in young flowers. Conversely, ahp4 anthers had more lignified anther walls than the wild type, and increased IRXs expression. Our study indicates that AHP4 negatively regulates thickening of the secondary cell wall of the anther endothecium, and provides new insight into the role of cytokinins in formation of secondary cell walls via the action of AHP4.

• Journal of Plant Biology
• /
• 제15권s호
• /
• pp.33-49
• /
• 1972

Recently two thousand year old several villages ruins discovered at Amsadong, Daeshimli and Hunbaukol near the Han River side in Korea. An investigation of the present flora of these three localities was done. There are 84 families including 419 species of vascular plants. The vegetations of flora in the localities of the Han River side are very similar. the forests are poorly developed and appear as the secondary vegetations. The reforest plants can be recognized as Pinus rigida, quercus acutissima, Q. serrata, Robinia pseudoacacia and Alnus hirta. Herbaceous plants of Miscanthus sacchariflorus and Phragmitis japonicus bind up the soiles of the Han River side. Populus nigra grows abundantly in the moist places of sand bars which are located on the river side south of Daeshimli and on the northern side of the Han River across from Hunbaukol. These three area are fully cultivated but still many primitive farm techniques are employed. Farm produce crops include rice, corn, barley wheat, other vegetables, and a few ornamental plants. In this study the author found flower color variations ranging from a dark blue to a pale blue, and chromosome number differences existing between the populations of Commelina communis. The dark blue flowered taxa chromosome number is 44 and in the pale blue taxa it is 72. The wild white flowered Chrysanthemum is Chrysanthemum zawadskii Herb. ssp. acutilobum and which has finely lobed leaves, and has 54 chromosome in the root tip cells.

• 식물분류학회지
• /
• 제38권4호
• /
• pp.565-571
• /
• 2008

미발굴 한반도 고유 식물자원의 발굴 관리를 위한 연구 조사 과정 중 국내 분포가 명확하지 않거나 극히 한정되어 있는 4종 식물의 신분포지가 확인되었다. 제주도 인근에서 자라는 난대 양치식물인 새깃아재비와 부생난인 으름난초가 전남 함평군 감방산과 전남 보성군 까치봉에서 각각 발견되었다. 전남지방에 분포하는 것으로 알려진 입술망초가 광주시 무등산에서 확인되었으며, 제주도와 울릉도에 자라는 분단나무가 강원도 강릉시 자병산에서 확인되었다.

• 한국자원식물학회:학술대회논문집
• /
• 한국자원식물학회 2022년도 추계학술대회
• /
• pp.52-52
• /
• 2022

제주도 서귀포시와 경북 안동시에서 사마풀속(Murdannia Royle)에 속하는 미기록 외래식물인 Murdannia nudiflora (L.) Brenan를 발견하여 보고하고자 한다. Murdannia nudiflora는 열대 아시아 원산으로 아프리카, 아메리카 대륙뿐만 아니라 우리나라와 가까운 일본에도 도입되어 있다. 종소명인 'nudiflora'는 본종의 조락하는 소포엽의 특징을 지칭하는 것으로 추정되며, M. nudiflora는 소포엽 외에 국내 자생하고 있는 사마귀풀[M. keisak (Hassk.) Hand.-Mazz.]과 뿌리, 꽃, 열매 및 종자의 외부형태로 쉽게 구분할 수 있다. M. nudiflora는 사마귀풀과 달리 뿌리줄기가 없고, 말단 혹은 액생하는 화서에 여러 개의 꽃이 피며, 꽃은 수술 2개, 헛수술 2-4개를 가지고, 열매는 자실 당 2개의 종자를 가지며, 종자는 작은 구멍이 있는 망상형 표면을 가진다. M. nudiflora는 닭의장풀과(Commelinaceae)에 속하는 분류군 중에서도 병해충을 유발하여 작물의 생산성을 감소시키는 잡초로 악명이 높으며, 주로 목화, 벼, 참깨 등과 같이 주요 작물이 재배되는 경작지에서 발견되는 것으로 알려져 있다. 본 종의 발견지들은 모두 해당 작물을 재배했던 것으로 추정되는 경작지로 M. nudiflora는 수입된 재배종 종자와 섞여 비의도적으로 도입된 것으로 보인다. 본 연구에서는 M. nudiflora의 화상자료 및 형태적 기재와 함께 국내 근연 분류군과 구별할 수 있는 검색표를 제시하고자 한다.

• Journal of Ecology and Environment
• /
• 제48권3호
• /
• pp.277-284
• /
• 2024

Background: Newly introduced transgenic plants can outcompete native species in natural ecosystems, threatening the biodiversity of a country. This study ascertained the weediness potential of plants according to the seed amount under the assumption that transgenic seeds were unintentionally spilled. Using sunflowers as the study system, 0, 50, 100, and 150 seeds were sown in 1 m × 1 m and 2 m × 2 m plots, and seed germination, survival, flowering, and competition between the surviving and wild plants were investigated. Results: There was no significant difference in the germination rate of sunflowers depending on the cultivar, but differences were observed depending on the sowing density and plot size. As the number of seeds sown increased, the flowering and seed maturation of sprouted plants occurred earlier; the plant height and flower length of the surviving plants decreased. In addition, as the number of seeds increased, not only did the early importance of sunflowers increase, but the period of dominance over weeds also improved. Conclusions: These results suggest that the weediness potential of sunflowers varies with the number of seeds at the time of release, which may affect germination and growth, and compete with weeds in transgenic plants.