建國大學校 農業史博物館 設置에 關한 硏究

金基駿,崔圭洪,金裕鉉,柳泰永 建國大學校附設農業資源開發硏究所 1989 農資源開發論集 Vol.14 No.-

To conserve the collected agricultural legacy as the historical materials, and for the study on the collections materials, method of collection, their display and conservation methods by defining the characteristices of agricultural history museum, and to establish the agricultural history museum at Kon-Kuk University, the present situation & characteristics of the national, public and private foundation museums including the university museums, and the forganigation & display of the major museums having agricultural relics were investigated. The results obtained are as follow: 1. By the establishment of agricultural museum,the agricultural legacies could be conserved, and the agricultural history of Korea could be systemized, and also the physicecracy could be illuminated. 2. It is suggested that the third proposal regulating the name of museum as agricultural history museum among the four suggested proposals for giving the aiming characteristices of planning museum at Kon-Kuk University. 3. It is predicted that the exhibition space should be wide since normally the agricultural relics have big size, and the space for the display and management should be strictly divided. Form the analysed results, it is considered that the total floor space and the space for of display should be above 710 Pyong, 364 Pyong, respectively, and the display space is about 55% of the total floor space. 4. The organization of exhibition space should be considered by the collected materials and the display space, however it is desirable to select or third proposal among the suggested. 5. It is suggested that the boundary of possessed and displaed legacics classified by nine parts on condition that it can be satistied the organization of exhibition space.

禮山 ⊙ 春川 및 尙州地方의 桑田 거미相에 관한 比較 硏究

任文淳 建國大學校附設農業資源開發硏究所 1986 農資源開發論集 Vol.11 No.-

The result of the distribution of the spiders at the mulberry filds in Ye-San, Chun-cheon and Sang-ju area are summarized as follows; 1. 20 families, 67 genus and 136 species at the above three areas, and 10 families, 37 genus and 61 species at Ye-san area, 15 families, 38 genus and 66 species at Chun-cheon area and 18 families, 50 genus and 85 species at Sang-ju area were identified in this experiment. 2. In family, Lycosidae, Erigonidae, Thomisidae, Tetragnathidae, Theridiidae and Salticidae were highly distributed at the mulberry fields in the above three areas. 3. In genus, Erigonidiun, Pardosa, Misumenops, Thetragnatha and Theridion were highly distributed at the mulbrry fields in the above three areas. 4. In species, Erigonidium graminicola, Misumenops tricuspidatus and Tetragnatha squamata were highly distributed at the mulberry field in the above three areas and the study of the ecological characteristics utilization of the above three species will be continued.

植物病原菌의 培養濾液이 他植物病原菌의 發育抑制效果에 관한 硏究

金明運 建國大學校附設農業資源開發硏究所 1986 農資源開發論集 Vol.11 No.-

A growth inhibition effect of other plant pathogen was studied with a filtering liquid from cultural medium of plant pathogen of 13 species. 1. A filtering liquid of Pyicularia oryzae inhibited a growth of Colleotorichum lagenarium and Sclerotinia sclerotiarum. 2. A fitering liquid of Mycosphaerella fragariae inhibited a growth of Glomerella cingulata. 3. A filtering liquid of Botryosphaeria berengeriana inhibited a growth of Sclerotinia sclerotiorum. 4. A filtering liquid of Fusarium oxysporum f. sp. cucumerinum inhibited a growth of Botryis cinerea, Glomerella cingulata and Sclerotinia sclerotiorum. 5. A filtering liquid of Fusarium oxysporum f. sp. fragariae inhibited a growth of Phoma destructiva. 6. A filtering liquid of Botrytis cinerea inhibited a growth of Pyricularia oryzae and Botryosphaeria berengeriana. 7. A filtering liquid of Ptrenophora gramina inhibited a growth of Colletrichum lagenarium 8. A filtering liquid of Pellicularia sasakii inhibited a growth ofr Colletorichum lagenarium and Glomerella cingulata. 9. A filtering liquid of Colletotrichum lagenarium inhibited a growth of Sclerotinia sclerotiorum. 10. A filtering liquid of Didyella Bryoniae did not inhibit a growth of all plant pathogen. 11. A filtering liquid of Phoma destrncliva inhibited a growth of Colletotrichum lagenarium. 12. A filtering liquid of Glomereella cingulata inhibited a growth of Sclerotinia sclerotiorum. 13. A filtering liquid of Sclerotinia sclerctiorum inhibited a growth of Fusarium oxysporum f. sp. cucumeterinum.

吐出壓力 및 호스 감김길이가 噴霧性能에 미치는 影響에 關한 硏究

崔圭洪,權純洪,李承奇 建國大學校附設農業資源開發硏究所 1988 農資源開發論集 Vol.13 No.-

Suction rate, discharge rate, overflow rate, power requirement were measured in accordance with the different hose rolling length using 3 hole swath type nozzle to investigate the effect affecting the spray performance of power spreyer. The results are summarized as follows; 1. Suction rate was uniformed in proportion to pressure increased. 2. Discharge rate and power requirement increased in proportion to pressure increased, but overflow rate decreased. 3. Suction rate, discharge rate, overflow rate, and power requirenment showed in order type 70, type 60, type 40. 4. The pressure drop was an equivalent of 6% in 100m-rolling length of hose, and it was an equivalent of 10% in 200m-rooling length of hose.

玄武岩 坡州統土壤의 現地水稻作 營養診斷

金台淳 建國大學校附設農業資源開發硏究所 1986 農資源開發論集 Vol.11 No.-

In situ nutritional diagnosis was carried out to delineate nutrient absorption by rice plant grown on the colluvial terrace soil of the Paju series that distributed along with stream of the Han Tan river. The content of N,K, and Si in situ plant grown on throughout the growing periods is low as compared to those conternt in the high yieding control plant. The content of Ca, Fe, and Mn in the plant, on the contray, show higher values. The same trend is also shown in the plant grown by non-fertilized condition on the Paju soil. The soil analysis also show that K and Si content is lower than those elements in the Cheonggye soil which is used for the comparison purpose. For Fe, however, the content show higer value in the Paju soil. The higher Fe content in the Paju soil which inherited from the basaltic parent materials and reduction due to poor permeability of water brought about higher absorption of ?? and that potentially affected on lower absorption of N,K, and Si by in situ plant. The conditions were like that, accordingly, the rice grain yield was decreased by lowering the number of filled grains and weight of 1000 grains, and poor maturity rate. The trend of high rate of the basal N application practices, more than 70% of total N applied, and imbalancing K supply, both of natuive and fertilization, with Fe also affected on the grain yield. In short, it is recommended that improvement of physical property of the soil, application of higher rate of K and Si, and the less amount of the basal N are required for the better rice cultivation on the Paju soil.

An Estimate of the Changes in Sap Flow Rates of Citrus paradisi Macf.(cv. grapefruit) as Related to the Age of the Drilled Holes

Kim, Shi Won,Kim, Sun Joo 建國大學校附設農業資源開發硏究所 1987 農資源開發論集 Vol.12 No.-

Heat pulse technique 로 citrus paradisi Macf. (cv. grapefruit)의 樹液流動率을 測定하여 穿孔後의 放置期間 및 穿孔時 損傷된 部位에 處理한 殺菌劑의 樹液流動에 대한 效果를 究明하였다. 樹液의 流動은 11~12月 에는 減少하였고, 3~6月 사이에는 增加하였으나 穿孔後의 放置期間에 따른 變化는 有意性이 없었다. 穿孔時에 損傷된 部位의 感染을 防止하기 위하여 穿孔部位에 Deconyl(1%), Argentum Nitrate(2%), Polyethylene Glycol 및 熱處理를 한 후 樹液의 流動을 測定한 結果, 有意性이 없었다. The ageing effect to the drilled holes and the effect of disinfectants applied to the wounded wall of the drilled holes were determined by measuring the sap flow rates of grapefruit trees using heat pulse technique. Sap flow decreased or increased by seasons, but there were no significant changes by ageing of holes. Comparison of asp flow between different treatm-ents taken to the drilled holes against the infection of the wounded areas also showed no significant difference.

마늘 貯藏病에 關한 硏究

白壽鳳 建國大學校附設農業資源開發硏究所 1986 農資源開發論集 Vol.11 No.-

In a disease of a storage garlic, Fusarium oxysporum, Penicillium sp and Bacteria were identified. An isolated Fusarium oxysporum formed short phialides, and intercalary and terminal chlamydo-spores were present. The size of micro-conidiospores was 5~15 x 1.5~2.5㎛ and type of them was an oval, a long-oval of an egg-shaped. Macro-spores had 1~5 septs and the size of 3-septa condiosproes was 33~40 x 4~4.5 ㎛ and the type of them was a canoe-shaped. The colour of colony in a selection medium was a pale-pink and the colour of the back side in a selection medium was a pale-orange colour. An isolated Penicillium sp formed conidiospores of a basipetal chains and phialids, and the type of conidiospores was a globular-shaped. In the reasult of pathigenicity test, the pathogenicity of all of isolated pathogens was recognized and disease symptom of each of them was same. An isolated Bacteria were not identified.

日照時間에 따른 日射量 計算公式에서의 係數推定에 關한 硏究

金始源,金善柱 建國大學校附設農業資源開發硏究所 1987 農資源開發論集 Vol.12 No.-

To estimate the coefficients in the formula relating global radiation to sunshine hours, the radiation on a horizontal surface, number of sunshine hours, extraterrestrial solar radiation and daily duration of maximum sunshine hours measured at Seoul meteorological station(Lat. 37˚34'N, Lon. 126˚58'E. Station No. 108) from December, 1985 to November, 1986 were analysed. The results obtained are summarized as follows: 1. The annual transmission ratio of horizontal surface radiation to extraterrestrial solar radiation in Seoul district was 47 percent. 2. The seasonal coefficient a in the prescott formula calculated through this analysis was 0.15 in spring, 0.12 in summer, 0.14 in autumn and 0.16 in winter, and the annual average coefficient a was 0.14. Tht coefficient b of spring, summer, autumn, winter was 0.61, 0.66, 0.67, 0.58, respectively and the annual average coefficient b was 0.63. 3. The correlation coefficient between the estimated radiation calculated with the coefficient a and b determined by this study and the actually measured radiation was higher than the case using penman's coefficients. Especially, the eatimated radiation calculated with the seasonal coefficients showed high correlation to the actual radiation.

生長抑制 處理가 쉬나무의 줄기 및 뿌리 生長에 미치는 效果

洪性珏,金鍾天,金光鎬,李暻宰,辛承極 建國大學校附設農業資源開發硏究所 1987 農資源開發論集 Vol.12 No.-

The study aimed to investigate the effects of paclobutrazol (PP333), B-9, and girdling on the shoot and root growth of one to five year-old seedlings of Evodia daniellii, of which the seed oil has been developed as a potential fuel substitute for Diesel engine. PP333 was applied, 0.1 to 6ml per seedling depending on the age and the experiment, by soil applicat-ion with water or by xylem injection with methanol. 5000 ppm B-9 was sprayed to the leaves until fully wetted. The bark was girdled 2mm wide in 2 year old seedlings and 5mm wide in 5 year old seedlings, the results were discussed as follows: 1. The number and the longitudinal growth of internode were reduced by all the treat-ments among which the soil application of PP333 was most inhibitory. 2. The diameter growth of the internode was not affected greatly or inhibited, but less severely inhibited than the longitudinal growth by the treatments. The ratio of the diameter to length of the internode which is a good indication of degree of dwarfism was increased by all the treatments, especially high by the soil application of PP333. 3. The xylem growth of the internode was inhibited more greatly than the bark growth by all the treatments among which the soil application of PP333 was most inhibitory. 4. The leaf growth was not affected, or slighly reduced by the treatments. The reduction in the leaf growth, if any, was not proportional to the reduction in the longitudinal growth of the corresponding internode. 5. The prolonged effect of all the treatments was shown in the following year growth: the growth reduction in number and length of internode, xylem diameter, ratio of xylem to bark area in the cross section of internode, which was most apparent in the treatment of PP333 soil application among treatments. 6. The soil application of PP333 reduced the seedling height, the number and the length of internodes, the dry weight and the dry weight ratio of shoot to root of one year-old seedlings. It also reduced the number and the length of internodes in 1 year-old grafted seedlings onto the 3 year-old root stock. The inhibitory effects of PP333 on the growth of the grafted see-dling was presumed as related to the possible disturbance of the source-sink relationship bet-ween the scion shoot and the root stock, in which sufficient nutrients and growth hormones could be supplied to the new shoot growth, if not applied PP333. The presumption was not inconsistent with the results that PP333 decreased the shoot-root ratio, and the xylem to bark area ratio in the cross section of the internode,of which both morphological changes imply the relatively more downward movement of nutrients and growth hormones in the PP333 treated seedlings.

땅콩種子에서 分離된 Fusarium spp.와 그 病原性

白壽鳳,都銀洙 建國大學校附設農業資源開發硏究所 1987 農資源開發論集 Vol.12 No.-

Fusarium oxysporum, Fusarium moniliform, Fusarium solani, and Fusarium equiseti were detected from seeds of 9 peanut cultivars, and detection ratio of Fusarium oxysporum of them was the highest as 2.2% and that of the others was 0.7~1.1%. Among 9 peanut cultivars, Fusarium spp. was detected in Sae-dl, Cheon-yup-ban-lip, Sin-pung and Dae-gwang but not detected in the others, and detected in a spanish type but not detected in a semi-ruunner type, and detected in a early maturing variety and medium-late maturing variety but not detected in a late maturing variety. Their pathogenicity of Fusarium oxysporum and Fusarium solani were recognized but those of Fusarium moniliform and Fusarium equiseti were weakly pathogenic by test tube agar method. The result of pathogenicity test investigated in soil of above all pathogens to 9 peanut cultivars as follows; Fusarium solani was the most pathogenic and Fusarium moniliform was the most weakly pathogenic, and pathogenicity difference of above all pathogens according to plant type of 9 peanut cultivars was not recognized, but pathogenicity of Fusarium solani showed strongly in late variety than in early variety and medium-late variety but that of the other pathogens was not different according to maturing time of 9 peanut cultivars. And there was no resistant variety among 9 peanut cultivars.