한국에서의 호프 ( Humulus lupulus L. ) 재배 및 보급을 위한 기초적 연구

임웅규 (Ung Kyu Lim) 한국식물학회 1975 Journal of Plant Biology Vol.18 No.2

With a view to obtaining basic informations on the morphological, physiological and ecological aspects of hop in Korea, this experiments were conducted in 4 locations(Suweon, Hongchun, Pyungchang and Hoengsung) from 1972 to 1974, The varieties used in this experiments were Hallertau, Saaz, Shinshuwase and Cascade, The results obtained are summarized as follows. Ⅰ. Morphological Study 1. The hop begun to develop its main stem in May and reached maximum growth in the middle to the late June then decreases gradually from the middle of July and stops in the early August. This growth process can be represented as S-curve diagrammatically. 2. It is noticed that the growth curve has six distinct depressions. This is considered to be due to the consumption of nutrients stored in rhizome, soil moisture and temperature. 3. The measured total length of laterals of Hallertau variety and Shinshuwase.

Gibberellin 처리가 Hop 수량에 미치는 영향에 관한 연구

임웅규 (Ung Kyu Lim) 한국식물학회 1977 Journal of Plant Biology Vol.20 No.1

This experiment was undertaken with the purpose of investigating the effect on the hop yield and dryweight of two Hallertau forma, Shinshuwase by Gibberellin treatment. The concentration of GA applied were 0, 10, 20ppm respectively and they were treated before ten day of flowering of hop. The result as follows; (1) Yield of hop was increased significantly by treatment of GA 10 ppm solution that is Hallertau was increased 17.2% of control plots, and Shinshuwase was increased 23.2% in GA 20ppm. (2) In dry weight was increased significantly by treatment of GA 10 ppm solution that is Hallertau was increased 21.6% of control plot and Shinshuwase was increased 25.9% in GA 20ppm.

Gibberellin 처리에 의한 Hop Shoot Apex 의 전자현미경적인 연구

임웅규 (Ung Kyu Lim) 한국식물학회 1974 Journal of Plant Biology Vol.17 No.2

This experiment was undertaken with the purpose of investigating effect of gibberellin on the growth and electron microscopic ultrastructure of hop(Humulus lupulus var. Hallertau) shoot apex. The results are as follows. 1) The growth of stem in the plots treated with GA(10, 25, and 50ppm) is more predominant than control. The leaves and cones of treated plots turn to pale green. 10ppm plot of GA treatment is the most effective in growth and yield than the others. 2) Under the GA-treatea condition, it is believed that the nucleoplasmic index(NP) are higher than the control, and so nucleus, nucleolus, mitochondria, primary cell wall, middle lamella, and etc. tends to be larger than the control. 3) Mitochondria contained in the cell of shoot apex treated with concentration of 10ppm GA was seemed to increas in number and be larger in size than the control.

솔잎흑파리 피해림의 소나무 생장에 관하여

임경빈,임웅규,황종서,Im, Hyong Bin,Lim, Ung Kyu,Hoang, Chong Ser 한국생태학회 1977 Journal of Ecology and Environment Vol.1 No.1-2

The growth of red and black pines in Muan, Seochen, Gapyeong and Kochang areas was compared by means of the growth of annual ring width and stem analysis to study the process of damages caused by pine needle gall midge. Red pine forest of Seocheon area began to suffer by pine needle gall midge from 1961 and the damage was to becoming severe from 1967. The damage became so intense tha tmany forests are withering to death from spring of 1975. Black pine forest also began to suffer from 1973. Red pine forest of Muan area was supposed to be suffered from 1973. Red pine forest of Kochang area suffered by pine needle gall midge from 1967. It seems that the damage became severe from 1973 and that black pine forest was also badly damaged from that time. Red pine forest of the control plot, Gapyeong area, began to suffer from 1967 and it also became intense from 1973. Although the areas of Seocheon, Muan, Kochang, and Gapyeong are different from each other in terms of locality and the infitration period of pine needle gall equally from 1967 due to mass development of population or other factors and the damage became more intense from 1973. Black pine forest was also badly damaged from that time. Black pine seems to be stronger in insect resistant than red pine. This can be justified by the fact that it began to suffer belatedly in each area and the degree of damage is moderate. The damage of Seocheon area is the severest following Kochang. Muan area is relatively moderate but the forest becoming decrease in growth.

간척지에서 수도 (水稻) 및 기타작물의 내염성에 (耐鹽性) 관한 연구 - 6. 염분간척지에서 직파법과 (直播法) 이앙법 (移秧法) 에 의한 수도생육의 (水稻生育) 비교

임경빈(Hyong Bin Im),임웅규(Ung Kyu Lim) 한국식물학회 1970 Journal of Plant Biology Vol.13 No.1

The Nongkwang variety was sown directly in the field by the three methods of dibbling, drill seeding and broad-casting in non-, low- and high-salty areas, and compared with the growth of transplanted rice in each areas. The yield of rough rice wat increased remarkably by direct sowing when compared with that produced by transplanting in both salty areas, but in non-salty area, the former was decreased significantly. There was no significant difference in the yields of rough rice resulting from three seeding methods of direct sowing in each area. The direct sowing method was predominated in number of panicie, weight of panicle, ratio of matured grains, milling recovery percentage, and straw weight in both salty areas, and dicreased in panicle weight and ratio of matured grain in nonsalty area.

Study on the Salt Tolerance of Rice and Other Crops in Reclaimed Soil Areas.

Im, Hyong Bin(任絅彬),Ung Kyu Lim(林雄圭),Chong Ser Hoang(黃鍾瑞) 한국토양비료학회 1971 한국토양비료학회지 Vol.4 No.1

간척지에서 수도개체군과 (水稻個體群) 재식밀도에 (栽植密度) 관하여

임경빈(Hyong Bin Im),임웅규(Ung Kyu Lim),심재섭(Jai Sup Shim) 한국식물학회 1969 Journal of Plant Biology Vol.12 No.2

Field studies were conducted with the split plot design of 20 treatments with a combination of 4 levels of 3, 5, 7 and 9 plants per hill and 5 levels of 60, 80, 100, 120 and 140 hills per 3.3㎡ on non-,low- and high-salty areas. Rice variety, Kusabue was grown under the standard fertilization and cultivating. Investigation was made on the productive structure of plant population, leaf-area index, light intensity curve by stratum of crop population at the panicle differentiation stage. The competition density effect on the photosynthetic capacity was low as the salt concentration became higher. This seemed to suggest the possibility of an increased yielding capacity by closer planting in the salty areas. The effect of an increased number of hills per unit area was greater than that of an increased number of plants per hill due to the total leaf area and space distribution of the active assimilation parts of rice plants. The number of panicle per unit area in the salty areas were increased when the number of hills per 3.3㎡ increased over an increased numbe of plants per hill, and the panicle weight was reduced by close planting in the non-lalty area, while it was not reduced so much in the salty areas. The number of grains per panicle was significantly decreased by close planting in the salty areas as in the non-salty area, and ratio of matured grain was not decreased even by close planting in the salty areas, while it was significantly decreased by close planting in the non-salty area. An increase in the rice yield was possible by close planting and greatly related to leaf area index in the salty areas but not in the non-salty area. Increasing the number of hills per unit area showed greater effect on the increase of the rice yield than an increased number of plants per hill in the salty areas. Relationships between the growth characteristics and the rice population affected by plant spacing mode for maximum production were discussed.

간척지에서 수도 및 기타 작물의 내염성에 관한 연구 - 15. 간척지에 재배한 수도 엽층의 수광 효과에 미치는 염분의 영향

임경빈(Hyong Bin Im),임웅규(Ung Kyu Lim),황종서(Chong Ser Hoang) 한국식물학회 1971 Journal of Plant Biology Vol.14 No.3

In order to observe the factors affecting light utilization efficiency in the canopy of a rice crop grown in reclaimed saline areas in Korea, 22 varieties of rice were cultured at the average salt concentration of 6.05mmhos/㎝ 25℃, (0.39%) in saline soils and non-saline silty loam soils. The inhibition of tillering ability by salt damage at the maximum tillering stage was greater than to growth in height. A significant direct correlation was observed between both ratios and salt concentration with each variety. In the salty areas the length of the flag leaf of the maturing stage showed a positive correlation with the production of rough rice while other living leaf showed a negative correlation. LAI of maturing stage was less in the salty area than in the non-salty area, while the former showed higher ratio in net assimilation and translocation to head with greater RGR before and after the heading stage.

간척지에서 수도 (水稻) 및 기타작물의 내염성에 (耐鹽性) 관한 연구 - 13. 간척지에서 수도의 (水稻) 무기양분 흡수와 쌀 성분에 관하여

임경빈(Hyong Bin Im),심재욱(Jai Wook Shim),임웅규(Ung Kyu Lim) 한국식물학회 1971 Journal of Plant Biology Vol.14 No.1

In order to observe the absorption pattern of mineral elements and the nutritional components of brown rice grown in reclaimed saline areas in Korea, the four commercial varieties of rice were culturad at the average salt concentration of 6.05 mmhos/㎝, 25℃, (0.3%) in saline soils and non-saline silty loam soils. In the saline areas the absorption of Na and Si was relatively high while the absorption of P, K and Ca, was relatively low. N was absorbed actively before the emergence of the rice grains but showed relative decrease thereafter. There was no difference in Mg content. Though brown rice in the saline areas contained sugar abundantly with small contents of protein, fat and crude fiber. There was little difference in total carbollydrate and ash contents.

토양산도조정에 따른 사탕무우 , Beta vulgaris L. 붕소결핍증의 출현에 관하여

황종서(Chong Ser Hoang),임경빈(Hyong Bin Im),임웅규(Ung Kyu Lim) 한국식물학회 1979 Journal of Plant Biology Vol.22 No.1-2

Sandy loam plots of pH 5.5 which was created by the reclamation of highlands in Yongin county, Kyeonggi province, was selected for the present experimental study. Sugar beet was cultured in these plots by treating them with calcium hydroxide and 3 replications to maintain pH 5.5, 6.4, 6.8, 7.2, and 7.6, respectively. The growth and yield of sugar beet were investigated and the results obtained showed a great deal of boron deficiency. The growth in its early stage was favorable in high pH plots, while no significant difference was observed in sugar content, root weight and sugar production at the time of harvest in each treated plot. The tendency of sugar accumulation appeared to be identical in terms of pattern in each treated plot; i.e. sugar was accumulated until early September but declined momentarily from the middle of September and then the sugar accumulation was resumed from the middle of October. The number of individuals in boron deficiency was larger in high pH plots and the condition of such boron deficiency was also severe. The result of analysis of boron contained in plant body revealed that the boron content of individuals caused boron contained deficiency by water culture and that occurred in the plots was small alike. The appearance of boron deficiency is characterized by the emergence of black stripes on the surface of the basal part of petiole, severe necrosis of young leaves in the area of growing point and severe wrinkles. Therefore it is felt necessary to pay particular attention to boron deficiency in the culture of sugar beet in our country.