본 연구는 옻나무의 암수구분에 의한 직경, 수고 및 수관폭에 따라 옻채취량의 변화관계를 조사하여 옻나무의 암수별 각인자의 옻채취량에 대한 상관관계와 회귀분석을 실시한 결과 암수구분에 의한 직경과 옻채취량의 관계에서는 암수 모두 직경증가에 따라 옻채취량도 증가하는 경향을 보였으며, 일반적으로 수나무개체들이 암나무 보다 옻채취량에 있어서 높은 수치를 나타내는 경우가 많았다. 암수구분에 의한 수관폭의 변화가 옻채취량에 미치는 영향력은 작게 나타났으나, 수관폭이 증가할수록 옻채취량도 증가하는 추세를 보여주었다. 또한 암수구분에 의한 회귀분석은 수나무보다 암나무의 주요인자들이 옻채취량에 더 많은 영향을 미치는 것으로 나타났으며, 직경, 수고, 수관폭 및 옻채취량의 유의적 차이는 없는 것으로 분석되었다.

우리나라의 을릉도에 자생하고 있는 우산고로쇠나무를 대상으로 흉고직경급별 수액 채취량과 수액 내 성분을 분석하였다. 우산고로쇠나무의 총 수액채취량은 376l 이었으며 흉고직경이 증가할수록 수액 채취량도 많았으며 총채취량에 대해 소 중 대경목이 각각18%, 32%, 50%의 비율을 나타내었다. 수액 채취량은 온도와 밀접한 관계가 있으며, 많은 양의 수액이 채취된 날의 기상조건은 일최고 최저기온의 온도격차가 크게 나타났다. 우산고로쇠나무 수액내의 고형분, 회분, 당도는 각각 3.04%, 0.06%, 3.06%로 나타났으며, 유리당은 자당 (30.6 g/l)이 높은 함량을 나타내었으나 포도당, 과당, 맥아당은 검출되지 않았다. 우산고로쇠나무 수액은 총 7종의 무기성분중 칼슘 (522 mg/l)과 칼륨 (309 mg/l)의 함량이 높은 것으로 나타났다.

The aims of this study are 1) to test oocytes and embryos collected from in-vivo and in-vitro to achieving the valuable protocol by culturing, vitrifying and thawing of oocytes/embryos, and 2) to transfer them to recipient, and finally have resulted in pregnancies from recipient females after surgical or nonsurgical transfer. In vitro maturation and fertilization were performed according to the procedures of Funahashi et al. Fertilized oocytes were cultured in glucose-free NCSU 23 supplemented with 5 mM sodium pyruvate, 0.5 mM sodium lactate and 4 mg/ml bovine serum albumin for 2 days at 39, and 10% fetal bovine serum was added to the culture medium thereafter. Embryos were treated with 7.5g/ml cytochalasin-B for 30 min, centrifuged at 13,000 g for 13 min and then exposed sequentially to an ethylene glycol (EG) vitrification solution, aspirated into OPSs, and plunged/thawed into/from liquid nitrogen. In vivo embryos were surgically collected from three donors after Al. Forty-six embryos (18, 9 and 19 embryos, respectively) were washed 3 times in mPBS+10%FBS, followed treatments : cultured, centrifuged, vitrified, recovered and transferred to recipients as in vitro prepared embryos. Three recipients received surgically 34(control), 188 and 184 embryos (derived from abattoir), respectively. Another three recipients were received nonsurgically 150, 100 and 150 embryos, respectively. All recipient sows exhibited delayed returns to estrus. To our knowledge, these results suggest that required an improved techniques, more vigorous embryos preparation and cleaner uterous condition(use gilt).

Colored apiculus, awn, and long empty glume are indicators of wildness and are usually eliminated during rice domestication. Genetic analysis was conducted to clarify the inheritance patterns of awn, apiculus color, and long empty glume in Korean rice collection. Based on individual characterization of F2 progenies derived from crosses between parents with colorless and purple apiculus, two (3 colored: 1 colorless) or three dominant genes (9 purple: 3 red: 4 colorless) are estimated as controlling this character by simultaneous complementary action. Different inheritance systems were detected between S237 and S245 of 'Shareibyeo' which belong to the weedy type. To determine the genes responsible in awning and long empty glume characters, the inheritance of landrace varieties of rice ('Naengdo' and 'Yuna') was investigated. In the crosses of awned land race and awnless cultivar, three dominant genes are supposed to control the awning genetic system by 63 awned: 1 awnless individual. As for long empty glume, one recessive gene, g-l on the chromosome 4, was the one controlling the segregation ratio of 3 normal empty: 1 long empty glume. By analyzing the Korean rice collection, the inheritance systems of these wild characters may lead to a better understanding of rice domestication in the future.

Epicotyl grafting in one of the most efficient propagation methods for walnut trees. We have analyzed the scion factors that may influence the survival rate of the grafts. The optimum time for the collection of scions was turned out to be between January

부산항은 우리나라의 대표적인 사회간접자본시설로서 국가경제발전의 견인차 역할을 수행해 왔다. 그러므로 항만관련시설들의 상호 보완적인 시스템화를 통하여 부산항을 세계 제일의 물류기지로 발전시켜 향후 동북아 물류중심항으로의 기능을 원만히 수행할 수 있도록 정부가 부산항 항만배후도로의 시설주체가 되어야 한다. 이에 본 논문에서는 부산항의 발전을 저해하는 컨테이너세의 문제점과 폐지에 관한 현실적인 접근을 통해 컨테이너세와 그 용도에 관한 분석 및 현황파악을 바탕으로 컨테이너세의 타당성 여부를 검토하여 다름과 같이 정리하였다. 첫째, 항만에서 역외 고속도로까지를 연결하는 항만배후도로는 항만의 일부분이므로 정부가 시설투자의 주체가 되어야 한다. 둘째, 컨데이너세를 징수함으로써 화주와 선사는 수출입 물류비와 함께 컨테이너세를 추가적으로 지불하여 상당한 비용적 부담을 안고 있다. 셋째, 공컨테이너 또는 환적컨테이너의 수출입 비중은 상당히 높아, 부산시 교통체증을 유발하는 요인으로 작용하고 있으나, 부과대상에서 제외되고 있어 컨테이너세 부과대상의 형평성에 크게 어긋나고 있다. 넷째, 동북아 물류허브항만이 되기 위하여 중국, 대만, 일본의 경쟁항만들은 항만비용의 절감을 통해 경쟁력을 향상시키고 있는 반면, 부산항은 컨테이너세라는 추가적인 세금을 부과함으로써 가격 경쟁력의 약화를 가져와 동북아 물류허브항만으로 육성하기 위한 전략에 큰 차질을 빚고 있다.

The book 'Collection of Filial Stories' was first edited by Jun Kwon with Chinese representative stories of 24 pieces which book was, then, dedicated to his father Mr, Pu Kwon. His father further added more 38 cases to the original edition, asking for his son-in-law, Jay-Hyun Lee, to compose Commendable Rhymes or Chan(贊) to each of the stories who was at that time famous on his writings. It was his grandson, Kun Kwon, who was one of the representative scholars of the new dynasty Choson and managed to publish the final vesion with his own annotations further appended. Although his Commendable Rhymes duplicated the contents in the text, Jay-Hyun Lee tried to give some changes in form in order to avoid monotony. This would be one reason, the writer suspects, that these Rhymes should deserve their value except the rarity. In the first part devoted to the preceeding 24 pieces, Lee composed twelve pair-lines with four letters in a line with diffenrent forms of rhyming foot. Firstly, all pair-lines keep the same final rhyme syllable. Secondly, half of them keep the same one but the other half from the 8th line adopt a different one. Thirdly, the 6th and l0th pair-lines have different rhyme syllables so that all three rhymes are observed. And lastly, two rhymes mutate themselves each other every two pair-lines. The second part, however, has only 8 pair-lines. The similar pattern in changing rhyme words is also observed. His rhymes were seem to be evaluated highly from his days in the sense that his works were adopted seriously in 'Three Modes of Moral Behaviour with Pictures' published by the government to teach lay people in early Choson dynasty. Unfortunately, since no rhymes were included in his publication, nobody mentions about it yet. It would be a merit, at least, of this paper which digs out his Commedable Rhymes for the first time.