When tea trees were introduced to Korea peninsular from China? Historically, Mr. Taeryum, an envoy of Shilla dynasty brought tea seeds from China during Tang dynasty and the seeds were planted at Jiri Mt. by the order of King Heungduk at AD828. During Koryo Dynasty(918 1392), Buddhism spread rapidly all over the country and the tea culture reached its highest stage of prosperity. At the Chosun Dynasty, however, the ceremonial drinking of tea vanished almost completely due to the flourishing Confucian tradition, a kind of substitution of Buddhism. But a few people have supported the traditional tea culture by themselves. Since the independence of Korea soon after the World War II at 1945, Korean War have been exploded at 1950. After economic evolution have been succeeded at 1980, the cultivation area of tea trees has been increased about 2,000ha and the cultural tradition of tea drinking has become popular again at a tea consume quantities amounted to 100g per capita at 2004. The northern limited area of tea plant is lined on the southern part of Korea peninsular. It is very small region compared to China about one million ha and to Japan over 60 thousand ha. It is problem not only the area of tea fields but also the methodology of tea cultivation, for examples without clonal cultivars and mechanical systems. WTO treatments was discussing with Korea, China and Japan government at 2005. Green tea custom is very high at 514% in Korea. If three countries will be agreed the imported tax will be cut off, the Korean tea farmers will be confused because of unstable situation of tea markets. All most of tea farmers should be made the tea fields by seeding not clonal propagation. Because of clonal cultivars have not developed in Korea, there have not been the research institutes for tea plants and manufactures before 1992. Now there are three research institute of tea in Korea; Tea Experiment Station at Bosung of Jeonnam Agricultural Research & Extension Services, Mokpo Experimental Station of National Institute of Crop Science, and Green Tea Cluster Institute of Hadong. Mokpo and Hadong Research Station were established at 2004 and at 2005 but Bosung Station was established at 1992. Seven clonal tea cultivers were selected at Bosung Station; Bohyang, Myngsun, Chanlok, Sunhyang, Mihyang, Jinhyang and Ohsun until 2004. Mokpo Experimental Institute was started the tea provenance testing about 4 provenances: Kangwon-do, Jeonlabuk-do, Jeonlanam-do, and Kyungsangnam-do. Korean new tea cultivers should be selected because Koran wild tea population have been high genetic variation. If tea breeding research will be successful to select new clonal cultivers, the tea farmers of Korea will be stable after WTO treatment with each country.

Ultraweak photons could be emitted from the chemical reaction without any electromagnetic radient. These chemiluminescence could be detected by highly sensible photomultiplier recently. We will introduce the principal of chemiluminescence generation reaction, and the application studies in the determination of food-borne microorganisms in field. The counts of surface contaminated microorganism in mackeral and chicken for cold storage determined by ATP-chemiluminescence method had good correlation with the counts by standard agar plate method. However, there was little correlation between 2 methods in ginseng powder whose microbial counts were lower than 10,000 CFU.

The purpose of this study is to plan, design and reflect to the future naturalization of the urban rivers by using the literatures, field survey results and aerial photography of Milyang River as the case regarding the effect of physical factors of urban rivers on landscape, defining those factors as Sammon fine forest, outdoor stage, Youngnamlu, RC stadium, stroll roads and bicycle roads, artificial island, outdoor swimming pool and sculpture park, and by suggesting the specific characteristics of the landscape according to those factors. The questionnaire survey was made to understand the users' satisfaction and attributes. The statistical analysis was applied, the frequency analysis and percentage calculation were used to find out the citizenship and perception toward the physical factors, and paired-sample T test to compare the average.

육묘 생력화를 위한 적정 부직포규격을 선발하기 위하여 경상북도 농업기술원 시험포장에서 4월 20일부터 6월 1일 까지 파종기를 달리하여 부직포 규격별로 온도변화, 묘소질, 육묘 노동력 및 자재비 절감효과 등을 조사하였다. 부직포 규격별 묘생육은 부직포두께가 두꺼울수록 초장은 커지고, 엽수와 지상부건물중은 감소하였다. 부직포 규격별 매트형성 정도는 4월 파종구는 과 의 부직포 피복구에서 비닐피복과 같이 양호하였으나 과 은 불량하였으며, 6월 1일 파종구에서는 의 부직포 피복구에서만 매트형성이 양호하였고 그 외 부직포 규격 및 비닐터널피복에서는 불량하게 나타났다. 모의 지상부 생육특성 및 매트형성정도에서 1모작인 4월파종구의 경우는 와 의 부직포가, 2모작인 6월파종구에서는 의 부직포가 묘생육에 가장 적합한 것으로 조사되었다.

본 연구에서는 갈근 및 그의 주 이소플라본인 puerarin의 활성을 세포 수준에서 분석하였다. 먼저 갈근에 함유된 이소플라본의 양을 분석한 결과, puerarin이 총 이소플라본의 90 % 차지하였다. 다음으로는 puerarin의 항당뇨 활성을 검정한 결과 먼저 탄수화물 및 지방소화효소 저해활성에 대해서는 거의 미비한 것으로 나타났으나 인슐린 감수성 및 지방세포의 분화의 유도에 대해서는 농도 의존적으로 작용하는 것으로 관찰되었다. 따라서 puerarin은 지방조직내로 포도당의 흡수를 촉진함으로서 항당뇨 효능을 발휘하는 것으로 추정된다.

The purpose of this study was a biota research and analysis for Close-to-nature stream restoration planning of Shinchun. The summary of this study is as follows; 1) The vascular plants in research area recorded of 45 species and insect fauna recorded of 34 species of 8 orders. As a result of table of community classification, the communities were two group; Quercus variabilis community(I), Pinus densiflora-Quercus variabilis-Quercus dentata community(II). 2) As a result of analysis on correlation of tree species, the level of significance in positive correlation between Quercus dentata and Corylus heterophyll aindicated 1% and between Pinus densiflora and Lespedeza bicolor also indicated 1%. 3) As a result of DBH analysis, it is expected that Quercus variabilis and Quercus dentata will dominateover other species in competition and its succession continuously maintains from now on in community I. In community II, it is assumed that there is a high possibility of changing into community of Quercus such as Quercus mongolica, Quercus dentata, and Quercus variabilis. 4) As a result of analysis on insect fauna, insect fauna consists of 94% of whole species as 32 species, 23 families, 8 orders. And 7 species, 7 families 4 orders was found in highly urbanized area, the vicinity of Sang-Dong bridge. 5) As mentioned above, Based on A biota fundamental research, Close-to-nature stream restoration planning were full of suggestions: i) Designating ecosystem preservation area, ii) Making Close-to-nature stream revetments, iii) Making pool-and-riffle, vi) Making decks for observation and walks for nature experience, v) Creating wetland biotope. Through these methods, it is necessary to promote bio-diversity and lead people to the space for eco-learning.

군위군 오이재배지역을 정밀토양도를 이용하여 토양특성을 조사하고, 군위군 노지 및 시설오이 재배지 토양의 물리화학적 특성을 조사하여, 연작과 관행적인 토양관리로 인하여 저하된 토양의 이화학적 특성을 오이재배에 적합한 토양으로 개량하기 위한 기초자료로 이용하고자 토양조사를 실시하였다. 조사지역은 군위군 군위읍 외랑리 오이재배단지로서 주요 토양통은 토양도에 나타난 단북통과 신정통이 가장 넓게 분포하였으며, 점토함량은 시설재배지내 토양의 경우 양토이었으며, 시설재배지의 외부 토양의 경우 23.8%로 높게 나타났다. 오이재배지 토양의 화학적 특성 결과에 대한 오이재배지 토양의 적정범위와 비교하여 보면 일반적인 화학적 성질에서 서는 유효 인산의 함량이 적정범위보다 높은 것을 알 수 있으며, 치환성 양이온 함량은 시설재배지의 외부토양은 적정범위에 속하나 시설재배지 내부토양은 모두 높은 것으로 나타났으며, 최상부 토양은 매우 높으나 10cm 이하는 깊이에 따라 뚜렷한 차이는 없었다. 오이 재배지 토양 중 중금속 함량은 모두 기준치보다 높게 나타났는데, 구리의 함량이 시설재배지가 노지재배지보다 높게 나타났다. 시설재배지의 경우는 다른 곳과 달리 표토 위에 부숙이 어려운 유기물의 과량투입에 따라 표토 위의 유기물 30% 이상의 유기물 층이 존재하여 모든 양분 성분이 매우 높게 나타났다. 따라서, 안정적인 생산을 위해서는 토양분석에 따른 토양관리법의 확립이 필요할 것으로 판단된다.

The objective of this study was to present regression equations between reservoir water quality and land use types of the watersheds. In order to derive regression equations, a multiple linear regression analysis was used using observed data from 88 reservoirs in the Kyungpook Provcince. The measured values of BOD, COD, T-N, and T-P were correlated with the areas of land use types. 23 regression equations were obtained for all the water quality items and watershed sizes. The results showed that 2 regression equations have the multiple correlation coefficient(MCC) above 0.90, 10 regression equations have the MCC values from 0.70 to 0.90, 9 equations have the MCC from 0.40 to 0.70, and 2 equations have the MCC from 0.20 to 0.40. The results of this study can be used to estimate reservoir water quality simply and quickly in the planning phase.

This study was carried out to investigate the influence of glycerine on the properties of paper. Two types of glycerine treatment were used. First type, when making handsheets, glycerine was added in the plup slurry. Second type, copying paper was soaked in glycerine solution. Microwave treatment was used for the test of paper degradation. The obtained results were summarized as follows: 1. The glycerin was very effective to improve the property of softness. 2. The glycerine was helpful to increase sizing performance of paper as a fixing agent of sizing emulsion. 3. Curl tester was comparatively useful for the measuring of sizing degree.