몇개의 生長調節物質이 콩의 수량에 미치는 영향

林雄圭 서울대학교농과대학농업개발연구소 1990 서울대농학연구지 Vol.15 No.1

콩의 品種 장엽을 공시하여 수원 所在 서울大學校 農科大學 실험포장에서 韓國化學硏究所가 合成한 植物生長 調節物質 KP-2, KP-8, KP-9의 3種類는 콩에 대한 處理에서 植物의 영양생장 및 곡실生産에 아무런 증수效果를 나타내지 않았다. KP-15의 0.1 ppm處理는 콩 꼬투리수를 有意하게 增加시켰고 또한 곡실 生産을 각각 15.8% 증수시켰다. TRIA의 0.1 ppm處理는 콩 꼬투리수를 현저히 增加시켰고 또한 곡실生産을 30.1%나 증수시켰다. Jangyop, the variety of soybean, was used for experiment at the experimental farm of College of Agriculture, Seoul National University located at Suwon, Kyunggido Province. The experiment was carried out applying 4-replication randomized block design which was treated with the plant growth regulating substance of KP-2, KP-8, KP-9 and KP-15 synthesized by Korea Chemical Laboratory and Triacontanol at 3 levels of 0.1 ppm, 1.0 ppm and 10 ppm. The treatment of soybean with KP-2, KP-8 and KP-9 showed no effect on the vegetative growth and increased grain yield. Soybean treated with KP-15 at 0.1ppm was increased significantly in the number of its legumes and grain yield by 15.8%. The treatment of soybean at 0.1ppm of Triacontanol increased markedly the number of legumes and increased grain yield by 30.1%.

遊離 窒素固定 微生物의 分子生物學的 硏究 : I. 大豆根瘤菌과 오리나무류 菌根菌의 分離, 同定 및 生理的 特性調査 I. Isolation, identification and physiology of Rhizobium strains in soybeans and of endomycorrhyzae in Alnus

林善旭,李敦求 서울大學校農科大學 1984 서울대농학연구지 Vol.9 No.1

우리나라에서 자라는 豆科 및 非豆科 식물에 공생하는 질소고정균 및 균근근을 분리, 식별하고 질소고정식물의 종류별, 시기별 질소고정능력을 구명하기 위하여 서울대 농대 전작물 시험포, 작물시험장 전작물 시험포에 재배되는 대두 16개 품종과 서울대 농대 묘포장에 식재된 1년생, 2년생의 오리나무류 그리고 봉담면 내리와 수원시 율전동의 물갬나무, 족제비싸리를 대상으로 실험한 결과 다음과 같은 결론을 얻었다. 1. 대두 근류균 중 현재 우량한 것은 12개 균주로나타났으나 serotype동정은 이루지 못하였다 2. 접종 친화성 및 질소고정능력 을 검정하기 위하여 선발된 균주 가운데 3개를 11개 대두품종에 대하여 pot시험으로 인공 접종한 결과 근류 착생상태, 아세칠렌 환원력 등에 차이가 있었으며 균주 S203이 우세한 것으로 나타났다. 3. 서울대 농대 묘포장의 1년생 및 2년생 오리나무류에서 내생균근은 발견되지 않았으나 내리의 물갬나무 成木에서 Gigaspora속의 내생균근균 포자를 발견했으며 율전동의 족제비싸리에서 3종의 Gigaspora속의 내생균근균 포자를 검출하였다. 4. 오리나무류는 하루 중 정오를 약간 지난 1시 ~2시 사이에 최대 질소 고정능력을 보이며 子正에 최소 능력을 보인다. 최대능력과 최소능력의 비는 6~7對 1이었다. 5. 오리나무류는 4월에 질소 고정능력이 시작되어 5,6월에 급속히 증가하며 6월에 최대를 이루고 그 이후로는 급격히 떨어지며, 11월에 이르러서는 거의 0으로 떨어진다. 이때 질소 고정능력은 물오리나무,좀잎산오리나무, 글루티노사오리나무,사방오리 나무의 순으로 양호하게 나타났으며 사방오리는 중부지방의 기후조건에 적합하지 않은것으로 보인다. The study was 1) to ideatify soil micro-organisms such as symbiotic nitrogen foxing bacteria and mycorrhizae living in leguminous and non-leguminous plants and 2) to examine diurnally and seasonally nitrogen fixing abilities of the host plants. To do this, 16 varieties of soybeans planted at the Agronomy farm, one-and two-year-old Alnas planted at Forestry nursery, and other Alnus and Armorpha growing near Suweon area were used as plant materials. The results obrained were as follows: 1. 12 strains in Rhizonbium japonicum strains were superoir, but serotype was not identified. 2. 3 strains in selected Rhizobium strains were inoculated areificially to 11 soybean species by pot experiment. The results showed differences in nodule number and weight, C₂H₂reduction, and were superior in S203 strain. 3. Endomycorrhizae were not found in one-and two-year-old Alnus planted at Forestry nursery. But Gigaspora spores bolonging to endomycorrhizae were found in mature trees of Alnus growing at Naeri and 3 kinds of Gigaspora in Armorpha. 4. Alunus showed the maximum nitrogen fixing abilities at 1-2 PM and minimum at midnight during the day. The ratio of maximum to minimum values was about 6-7 to 1. 5. Nitrogen fixing abilities of Alnus were shown first in April and increased rapidly in May. The maximum was shown in June and then decreased rapidly. A. hirsuta was the best in nitrogen fixing abilities, followed by A. inokumai, A. glutinosa and A. firma. However, A. firma was not appropriate for its growth in middle part of Korea because of coldness.

水原樹木園 植物目錄(Ⅰ)

附屬樹木園 서울대학교농과대학농업개발연구소 1989 서울대농학연구지 Vol.14 No.2

본 대학 수목운은 관악산에 위치하고 있는 안양수목원과 수원에 있는 수원수목원으로 나누어져 있으며, 1971년 10월에 대통령령 5,666호로서 서울대학교 농과대학의 부속기관으로서 법적인 위치를 차지하게 되었다. 수원수목원의 조성 면적은 약 21ha로서 구원시 서둔동에서 고색동에 이르는 도로에 의하여 자연적으로 동서수목원으로 구분되어진다. 동편수목원은 본 대학 남학생 기숙사인 상록사 앞쪽의 지구로 약 8.5ha 의 면적이며, 서편수목원은 본 대학 부속농장 남쪽의 노송지구로 면적은 약 13.5ha이다. 동편수목원에는 침엽수원, 활록수원, 식의식물원, 덩굴식물원, 조림수원, 국토녹화수원 등 가로수원으로 구성되어 있으며, 서편수목원은 자디원, 화관목원, 기증수목원, 생울타리견본원, 시 · 도목원, 조경수원, 유실수원, 숙근초 관찰원 등으로 구분되어진다. 동편수목원에는 장미과(Rosaceae), 소나무과(Pinaceae), 주목과(Taxaceae), 측백나무과(Cupressaceae), 자작나무과(Betulaceae), 층층나무과(Cornaceae)의 식물이 주로 식재되어 있으며, 서편수목원에는 범의귀과(Saxifragaceae), 소나무과(Pinaceae), 진달래과(Ericaceae), 콩과(Leguminosae), 인동과(Caprifoliaceae), 노박덩굴과(Celastraceae)의 식물들이 주로 식재되어 있다.

農科大學의 國際化 對應에 관한 硏究 : The Case of the Seoul National University College of Agriculture 서울大學校 農科大學과의 聯關에서

金性洙,王仁權 서울대학교농과대학농업개발연구소 1990 서울대농학연구지 Vol.15 No.1

The general objective of the study was to explore an expanded 'fourth' function of 'International Agricultural Development Activities' of Korean agricultural colleges, Seoul National University College of Agriculture (SNUCA), in particular. In order to attain the general objective, some detailed objectives were formulated: (a) to systematically understand the basic concept of and need for the expanded new function; (b) to make an overview of highly selected foreign agricultural colleges' international agricultural activities with special reference to those in the United States, the firstcomer developed country in the field; and (c) to make a projection on the function to be planned and implemented by the SUNCA. The significance or meaning of the study may be very briefly summarized. First, the Korean national development has been such that Korea has become the most typical firstcomer developing country or newly-industrializing country or economy. Consequently, Korea's most leading SNUCA in higher agricultural learning institutions has been greatly and well developed. Second, being the most typical and forwarding 'more-developed' developing country with tremendous industrialization in such a shorter span of time since the early part of the 1960s, Korea has been expected and sought by so many latecomer developing countries, that is, 'less-developed' developing countries the world over as an appropriate origin for their national development technology, the agricultural and rural development technology, in particular, for their rather immediate utilization, which are mostly agriculture-based so badly lagged. Third, Korea's markedly enhanced status in the international community needs to strengthen her international involvements in terms of development cooperation for the latecomer developing countries the more, for the international development activities, namely, 'International Agricultural Development Activities,' to be planned and implemented for the very unfortunate countries, which would prove of national benefit, too. And finally, fourth, the traditional international donors, for example, the United States, have become weakened, and in this highly internationalization era, Korea as one of the newly-emerging country has to assume the leadership as an international donor, in this case, in the field of agricultural development, to be genuinely internationalized herself. The study had a couple of no small limitations or difficulties: (a) since this study was the first of its kind conducted in Korea, reference information could hardly be found locally, (b) in getting relevant information from arbitrarily selected agricultural colleges in other countries which could be considered far more experienced in the field, only two or three cases could be evaluated satisfactory though almost all (16 out of 17) responded to the information-seeking letters-cum-questionnaires sent. Especially, Dr. Jiryis Oweis of the Board for International Food and Agricultural Development (BIFAD), Department of State of the United States, was very much helpful and Dr. E. W. Coward, Jr., Director, International Agriculture and Professor of Rural Sociology and Asian Studies, College of Agriculture and Life Sciences, Cornell University, has forwarded the most comprehensive and relevant information. and (c) taking into consideration the fact that this study is of an exploratory nature, contents or the scope of the study was intentionally made limited. From a review of some foreign agricultural colleges' international agricultural activities with special reference to those of the United States, the following were found. (A) Universities or agricultural colleges' authodox and/or fundamental functions of teaching, research and public services have to be supplemented by a fourth function of 'International Agricultural Development Activities' in more developed countries, especially with a view to helping develop so many latecomer developing countries the world over. (B) The new function is not the kind of an one-way, one-direction flow one from more developed countries' agricultural colleges to those in less developed developing countries. The field experiences are fed back to the donor colleges so that they are integrated into the already operating three functions very much to give international perspectives and trainings to students and public or private parties interested in this intensified era of internationalization or globalization. (C) Universities themselves, government authorities concerned, private firms and organizations interested, and major foundations should have recognition, commitments and actual supports for the endeavour. In other words, agricultural colleges must do what they should do and relevant external agencies and organizations must do what they should consider as necessary. (D) the traditional 'Exchange Program' is only part of the International Agricultural Development Function which is far more comprehensive when well developed though the student and faculty exchange program may be considered the core of the international function, being the traditional nucleus of the 'Internationalization of Universities or Agricultural Colleges' in an era of internationalization for human being's symbiotic existence. And (E) the international agricultural development activities have to adopt an interdisciplinary approach among relevant disciplines. In particular, it must be imperative for any development projects to have social scientists formally participated in. In other words, agricultural or rural social sciences, such as agricultural economics, rural sociology, and agricultural and extension education must be represented in any development cooperation teams. Some of the more imortant findings and projections worked out from this study which, among others, aimed at exploring the international agricultural development function for the Seoul National University College of Agriculture of Korea, may be: A) It would be confidently pointed out that faculties of the SNUCA were very much enthusiastic and willing to take up the fourth function of international activities for which basic capacity or qualifications are almost same with or equal to those in other foreign agricultural colleges of significant attention. (B) The Korean government authorities have just initiated to extend development cooperation to latecomer developing countries in the field of, agricultural development, which fact implies, among others, the government authorities concerned should pay their serious attention to the agricultural colleges' role in the framework of the official development cooperation programs. Unfortunately, in the past, the SNUCA and other agricultural colleges used to be given little or no attention at all by the government authorities concerned, the Ministry of Agriculture, Forestry and Fisheries, for example;. the SNUCA is under the jurisdiction of the Ministry of Education in Korea. (C) The SNUCA must do what it. should do within its reach and management: creation of an institutional set-up such as an office of international agricultural development programs; encouraging to set up international courses, preferably of interdisciplinary character when considered pertinent; encouraging to infuse international flavour and perspectives Into existing courses as much as possible; increasing the number of cooperating agricultural colleges primarily in latecomer developing countries, accepting more students from them, together with faculties, who should be accommodated in a dormitory provided; establishing the missing disciplinary departmental set-up for 'Rural Sociology,' etc. (D) In line with the SNUCA's projects, the University headquarters and the Ministry of Education and other ministries concerned should provide the faculties with financial resources so that they could conduct research studies and teaching in cooperation with cooperating agricultural colleges in the very recipient countries. As far as the agricultural industry is concerned, this would enable to make up what Korea badly lacks in the so-called 'Area Studies.' (E) Major private foundations presently found locally, numbering five or so which have interests in promoting academic progress, should turn their attention to the SNUCA's international agricultural development activities for the very unfortunate lagged countries, most of which, naturally are agriculture-based with much to do for improvement, as historically the United States' cases have demonstrated. As a sort of the conclusion of the study, a proposition-like statement may be advanced: the international development function of the Seoul National University College of Agriculture should be integrated into the existing three traditional ones not only for the development of the SNUCA but also for the national interests and needs in this ever-increasing internationalization era as the most important measure to cope with the international developmental challenges.

乳牛에 있어서 産乳能力에 影響을 미치는 空始期效果에 관한 硏究

池卨夏,申英秀,李學敎,高文石,吳鳳國,孫始煥 서울대학교농과대학농업개발연구소 1988 서울대농학연구지 Vol.13 No.2

This study was carried out to estimate relationships between days open and milk yield at 305 day and according to season of freshing. Data used for this study included a total of 3,266 sets of 305day lactation records of Holstein cows tested milk yield performance in National Animal Breeding Institute from 1971 to 1987. Parity, year at calving and days open showed highly significant (p<0.01) effects on actual and age-corrected milk yields in the first season of refreshing. Days open affected on age-corrected milk yield significantly (p<0.05) and parity and year at calving also effected significanty (p<0.01) on milk record in the second season of refreshing. As days open increased from 20 to 200days, actual and age-corrected milk yield increased from 4,998kg and 5,415kg to 5,290kg and 5,702kg in the frist season, respectively. In the second season, actual and age-corrected milk yields were also affected by period of days open. (Key words : Days open, milk yield)

韓國産 조팝나무屬에 대한 系統 分類學的 硏究 : Morphological Characters 形態的 特性을 中心으로

李惟美,金泰旭 서울대학교농과대학농업개발연구소 1990 서울대농학연구지 Vol.15 No.2

This study was conducted to construct the keys for identification based on morphological characters and distributions of genus Spiraea in Korea. The morphological characters analyzed in this study were leaf, inflorescence, floral structure, twig and fruit in 11 species 5 varieties of genus Spiraea. The results obtained in this study were as follows; 1. Most of species are distributed in central and north region of Korea. Especially, S. prunifolia var simplicifolia is distributed throughout the Korean penninsula, S. media only in Mt. Baekdu. 2. In leaf characters, S. salicifolia has the largest value of length/width ratio and S. blumei has the regional variation. 3. The most important key for classifying species of genus Spiraea is inflorescence. S. salicifolia has the panicle inflorescence with pale pink color. The identification by pisitil length/flower size ratio also was effective. The pistil lengths were two or three times of the flower lengths in S. miyabei and S. fritschiana. 4. According to this study, Genus Spiraea was divided into three sections of Spiraea, Calospira, Chamaedryon.

韓國産 稀貴 및 滅種危機 植物의 保存과 植物園 및 樹木園의 役割

金用植,金泰旭 서울대학교농과대학농업개발연구소 1990 서울대농학연구지 Vol.15 No.2

本 論文은 現在 우리나라에서 報告된 植物 中에서 稀貴 및 滅種危機植物로 考慮되는 植物을 整理하여 論하였다. 한편 이를 植物園 및 樹木園의 役割과 關係하여 整理하였다. 우리나라에서 稀貴 및 滅種危機植物에 대한 管理對策이 앞으로는 보다 具體的으로 遂行되어야 할 必要性에 대해서도 論하였다. The present paper is on the present status of rare and endangered plants in Korea which the land for the diverse plant species. The established purpose and the conservation strategy on the rare and endangered plants in relation to the role of the botanic gardens and arboreta in Korea were discussed.

Effect of Mechanical Stimulation on the Radish(Raphanus sativus L.) Growth

Jeong, Byoung-Ryong,Lee, Byoung-Yil 서울대학교농과대학농업개발연구소 1990 서울대농학연구지 Vol.15 No.2

알타리와 赤丸二十日 무의 生育에 미치는 brushing shoot(BS, 총채에 依한 接觸), blowing wind(BW, 선풍기에 依한 바람 接觸), covering shoots(CS, 밤동안의 거적 덮기) 및 bending petiole(BP, 잎을 水平으로 누르기)의 物理的 刺戟의 影響을 調査한 結果는 다음과 같다. 物理的 刺戟\은 두 品種에서 共히 生育을 抑制시켰는데, 特히 葉長, 葉面積 그리고 地上 및 地下部의 新鮮重이 현저하게 감소되었다. 物理的 刺戟 중에서 BS의 生長抑制作用이 가장 컸고, BW는 별 영향을 미치지 못하였다. 이들 處理는 生育初期일수록 그리고 處理回數가 많고 處理期間이 길수록 그 生育抑制程度가 커졌다. 또한 BS의 生育抑制效果는 午後 1時頸의 處理에서 午前 8時나 午後 6時에 處理하는 것에 비하여 顯著하게 크게 나타났다. 物理的 刺戟處理를 받은 무의 잎은 上偏生長이 두드러졌고, 濃綠色을 띄었으며, 단위 葉面積當 葉錄素含量, 光合成 및 呼吸速度는 增加하였으나, 단위 乾物當 炭水化物含量과 總乾物 生産量은 減少하였다. 葉面積의 減少와 呼吸率의 增加는 刺戟을 받은 植物體에 있어 生長抑制의 主因으로 推察되었다. Growth responses of two radish cultivars, Altari and Jeokhwanisipil, to four different physical stimulations were investigated. The four treatments applied were brushing shoots with a plastic lace (BS), blowing wind with a electric fan (BW), covering shoots with thatch (CS), and bending petioles with hooks (BP). Growth of both cultivars were retarded by all four treatments. Growth reduction was obvious in leaf length. leaf area. and shoot and root fresh weights. Among the four treatments BS was the most effective, while EW was the least, in retarding growth. Applications of treatment at early growth stage. for longer duration, and with higher frequency were more effective. Among single BS treatments at different times of the day application at 13:00 was more effective than either at 8:00 or 18:00. Treated plants showed severe leaf epinasty and produced dark green leaf. Leaf chlorophyll Contents, photosynthesis and respiration rates per unit leaf area increased, while carbohydrate contents per unit dry weight and total dry matter production decreased, in the treated plants. Decreased leaf area and increased respiration rate are believed to be the main causes of growth reduction in stressed plants.

韓國人의 傳統庭園 識別要因에 關한 硏究

曺正松,이유직 서울대학교농과대학농업개발연구소 1990 서울대농학연구지 Vol.15 No.1

The purpose of this study was to investigate how Koreans distinguish their traditional gardens from other Oriental traditional gardens. This study was focused not on the prototype study of traditional gardens but on the Koreans' judgement factors of their traditional gardens. The results are summarised as follows, 1) There is no consistency between the Koreans' self-rating interest level and the understanding of the traditional garden elements, 2) On distinguishing the garden style, Koreans mainly depend on the garden structure. In case of where trees and stones were dominated in a garden, they considerate whether trees were prunned or not, and stones were arranged naturally or not. 3) The experience or image of traditional garden by the mass media also affect the interpretation of the Oriental traditional gardens.

돼지의 離乳後 形質에 미치는 品種性 및 環境要因의 效果

鄭興又,朴英一,徐康錫 서울대학교농과대학농업개발연구소 1989 서울대농학연구지 Vol.14 No.1

This study was conducted to investigate the effect of breed, sex, year of birth, month of birth, litter size and parity of sow on certain postweaning traits in swine. The data for this study were obtained from 5,386 heads of Duroc, Landrace and Yorkshire boars and gilts tested at a swine breeding farm in Icheon, Kyunggi-Do from August, 1982 to August, 1987. The results obtained in this study are as follow: 1. The least-squares overall means of the traits studied were 0.777±0.002㎏ for average daily gain, 158.7±0.28 days for age at 90㎏, 1.833±0.008㎝ for backfat thickness, 112.2±0.13㎝ for body length and 63.7±0.05㎝ for wither's height, respectively. 2. Among the three breeds compared, the Duroc had the highest average daily gain and reached 90㎏ at an earliest age. The Landrace had the thinnest backfat and longest body length. In wither's height the Duroc was the highest. 3. Males had higher average daily gain, reached 90㎏ at an earlier, age, had thinner backfat, longer body length and higher wither's height than females. 4. Year of birth and month of birth had significant effects on all of the postweaning traits studied. The pigs born in June, July and August had comparatively higher average daily gain and earlier age at 90㎏ than those born in other months. The pigs born in October had the thinnest backfat. 5. the effect of litter size was significant for age at 90㎏ and backfat thickness, but was not significant for average daily gain, body length and wither's hight. The pigs in litter sizes of 5 to 7 reached 90㎏ at an earliest age, and those in litter size of 12 or more reached 90㎏ at a latest age. Backfat was thinnest in the litter size of 4 or less and was thickest in the litter size of 12 or more. 6. The pigs in 2nd 3rd parities had the highest average daily gain and reached 90㎏ at an earliest age, and those in 5th parity was the most inferior in the two traits. Backfat was thinnest in the 1st parity and was thickest in the 5th parity.