멸구 매미충류에 대한 약제저항성의 유전성에 관한 연구 I. 애멸구의 MEP제에 대한 약제저항성의 유전적 특성

심재욱,Shim Jai Wook 한국응용곤충학회 1978 한국식물보호학회지 Vol.17 No.2

본 시험은 애멸구의 MEP제에 대한 저항성이 유전적 특성에 기인된 것인지를 알아보기 위하여 나주지역의 야외집단을 채집하여 감수성인 실험실 계통과 교배하고 $F_1,\;BC_1F_1$ 및 $F_3$에 대하여 Probit 법으로 분석하고 $LD_{50}$을 비교한 결과는 다음과 같다. 1. 나주지역의 애멸구 야외집단은$LD_{50}$이 자충충의 경우 0.0029ug/충으로 감수성인 실험실계통의0.0008ug/충에 비하여 저항성의 차를 타나내었다. 2. 나주지역 야외집단이 나타내는 저항성은 $F_1$과 $BC_1F_1$ 의 분석에서$LD_{50}$ 및 사충율의 회귀가 저항성인 친쪽으로 가깝게 나타나는 경향을 보여 유전적 특성에 기인된다고 생각되었다. 3. $F_2$ 집단의$LD_{50}$은 양친의 중간 정도였으며 넓은 분산을 보이고 있어 MEP제에 대한 저항성의 유전은 수개의 유전자가 관여할 것으로 생각되었다. The study was conducted to determine the inherited properties of the MEB resistance to natural population of the small brown plant-hopper(Laodelphax striatelluss). The plant-hoppers were collected from the natural population of Naju area where the highest insecticide resistance of MEF to the green rice leaf hopper (Nephotettix cincticeps) have been examined in 1976. And Naju collections were crossed to the susceptible Lab stock to examine the MEP resistance in the $F_1,\;BC_1F_1\;and\;F_2$ and $F_2$ populations. Ail the data were analyzed by the probit method. There was a difference in MEP resistance between Naju collection and susceptible Lab stock, showing $LD_{50}$ value of the former was 0.0029ug/insect compared to 0.0008ug/insect for the later. The $LD_{50}$ values and dosage-mortality lines of the $F_1$ and $BC_1F_1$ tended to close their resistant parent. and it was considered that the character of the MEP resistance in the Naju collection of the small brown plant hopper was controlled by the genetic traits. However, $LD_{50}$ value and dosasage-mortality lines of the $F_2$ populations were intermediate to their parents, it would be conclusive that the trait will be governed by a interaction of the genes or factors rather than the single genic control.

二化螟蟲에 對한 水稻의 抵抗性에 關한 硏究

Jai Wook Shim(沈載昱) 한국육종학회 1969 한국육종학회지 Vol.1 No.1

二化螟蟲에 對한 水稻의 品種間抵抗性 差를 밝히기 爲하여 選拔된 抵抗性 및 感受性品種들을 供試하여 一化期와 二化期의 被害莖數, 그리고 二化期의 在蟲數, 被害度, 史體重 等을 調査하여 다음과 같은 結果를 얻었다. (1) 水稻品種에 對하여 二年間에 걸친 抵抗性反應의 傾向이 一致하였으므로 眞正한 品種間의 抵抗性이 存在한다고 생각되었다. (2) 供試된 水稻의 12品種에 있어서 一化期와 二化期의 被害莖數는 顯著한 差를 나타냈으며 一, 二化期의 被害莖數는 正의 相關을 나타냈다. (3) 水稻의 抵抗性 및 感受性品種은 在蟲數 및 被害度에 있어서도 顯著한 差를 나타내었다. (4) 在蟲數와 蟲體重問에는 正의 相關을 나타내었는데 이는 害蟲集團의 密度效果 以外의 다른 抵抗性 要因이 存在함을 暗示하는 것으로 생각되었다. The study was conducted to investigate the difference of varietal resistance to rice stem borer(Chilo suppressalis Walker) in rice plant. And the varieties were used 6 resistants and 6 susceptibles, which were selected by field observations made in previous experiment. The number of damaged plants, number of survived insects and the degree of damage were examined to determine the host resistance of rice plant under the field condition. (1) It was considered that the real varietal resistance was existed, because the results obtained were similar tendency of resistance to previous experimental results. (2) The number of damaged plants, which caused by 1st and 2nd generation of rice stem borer larvae, showed the significant positive correlation indicating no evidence of ovipositional preference. (3) And also there were significant difference between resistant and susceptible varieties in both number of survived insects and the degree of damages. (4) There was significant positive correlation coefficient between the number of insects survived and the body weight of insects, suggesting that there must be existed some resistance factors instead of the population density which decreases the size of insects.

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.

大麥의 半矮性 短稈 및 GA 反應性의 遺傳 Ⅱ. 短稈에 對한 GA反應性의 遺傳

Nam Chun Paek(白南天),Jung Hyun Nam(南重鉉),Jai Wook Shim(沈載昱) 한국육종학회 1988 한국육종학회지 Vol.20 No.2

This investigation was carried out to reveal the relationship between dwarfing sources and gibberellic acid responses with semidwarf barley cultivars, Baekdong, Namhae, Paldal, Dusn 8 and dwarf marker cultivars, Himalaya (br), Svanhals(br₂), Baitori 10 (uz). For analyzing growth response of first leaf internode length and its inheritance to GA₃ treatment, all possible combination crosses of above cultivars were performed. The optimum GA₃ concentration for elongating responses of first leaf internode length was 10ppm in barley. Five cultivars, such as Baekdong, Namhae, Hymalaya, Svanhals, Baitori 10 were low growth response of first leaf internode elongation to GA₃ while others were intermediate. Dominant alleles to dwarf genes, such as br⁺, br⁺₂, uz⁺ expressed complementary epistasis in the growth responses of first leaf internode length to GA₃ and it was revealed that Baekdong has the uz gene of Baitori 10 because of its same response. The growth response of first leaf internode length in Namhae showed complementarity of 2 dominant genes as that of the marker cultivars and the genes which control the responses of first leaf internode length in Paldal and Dusan 8 were considered to be same pattern in controlling their responses.

大麥의 半矮性 短稈 및 GA反應性의 遺傳 Ⅰ. 半矮性 短桿形質의 遺傳分析

Nam Chon Paek(白南天),Moo Hee Yang(楊武熙),Jai Wook Shim(沈載昱) 한국육종학회 1987 한국육종학회지 Vol.19 No.3

This investigation was carried out to identify dwarfing sources of five Korean barley cultivars, Baekdong, Namhae, Songhak, Paldal, and Dusan 8. Three foreign cultivars, Himalaya, Svanhals, and Baitori 10 were used as the genetic markers of the dwarf genes, br, br₂ and uz respectively. Eight cultivars were crossed by all possible combinations so as to know the genetic sources of their culm lengths. The major dwarf gene of Baekdong was the uz by which Baitori 10 was controlled. Songhak was controlled by two independent recessive dwarf genes and one of them was considered to be uz gene. The crosses between Korean cultivars, Namhae, Paldal and Dusan 8, and the cultivars of three genetic markers showed that three Korean cultivars were controlled by one recessive dwarf gene different from br,br₂ and uz gene. In the crosses among three Korean cultivars, Namhae, Paldal, Dusan 8, each one was controlled by different gene or genes from another ones.

大麥의 靑色糊粉層 遺傳子(bl’s)의 遺傳分離

Sae Jung Suh(徐世政),Young Am Chae(蔡永岩),Jai Wook Shim(沈載昱) 한국육종학회 1986 한국육종학회지 Vol.18 No.2

The genetic segregation and epistatic effects of blue aleurone genes(bl’s) in barley were examined. And also the linkage relationships among bl genes and between each of bl gene and chlorina (fc) on chromosome Ⅰ and hooded(K) gene on chromosome Ⅳ were estimated. The conclusions of the experiments were as follows. 1. The blue aleurone characters in barley were considered to be controlled by 5 pairs of dominant complementary genes. Therefore the white aleurone phenotypes were resulted that any one of these genes is recessive homozygous state. 2. The Korean domestic cultivars of barley, Doosan #8 and Kangbori, which shows white aleurone color, seemed to be possessed bl₂ and bl₃ gene respectively. However about 10% of the blue aleurone kernels were segregated in the F₂ seeds of cross between Kangbori× Blx, as in the case of Kangbori cultuar itself. It is thought to another factor or factors are responsible for the expression of the bl₃ gene at recessive homozygous state in Kangbori. 3. The bl₄ gene which expresses the red aleurone color at the recessive homozygous state considered to show different epistatic effect upon bl and bl₃ gene respectively. 4. There were sparse linkage relationship between bl₅ gene of BGM₁₂₂ and bl₂ gene of Nepal, and it is postulated that the bl₅ gene is located on the distal portion of the long arm of chromosome Ⅰ. 5. The gene bl₃ and bl₄ showed linkage relationships with the genetic marker gene K respectively, and the possible gene order on the chromosome Ⅳ appeared to be bl-bl₃-K-bl₄, on the basis of the estimated recombination values.

Study on the Salt Tolerance of Rice and Other Crops in Reclaimed Soil Areas : Effects of Varying Plant Spacing and N Levels on Rice Canopy in Reclaimed Salty Area 干拓地에서 水稻生育에 對한 栽植密度와 N 水準變動의 要因效果에 關하여

Im, Hyong Bin,Shim, Jai Wook,Lim, Ung Kyu 서울대학교 1972 서울대학교 論文集 Vol.22 No.-

水稻生育期間中 平均鹽分濃度 7.5㎜hos/㎝, 25℃(0.48%)의 干拓地에서 구사부에를 供試하여 N施肥를 反當 10㎏, 15㎏ 및 20㎏의 3 水準, 3.3㎡ 當栽植株數를 80, 100, 120 및 140의 4 水準의 組合인 12處理를하여 水稻캐노피, 收量要因 및 收量등에 미친 N증비효과와 밀도효과 그리고 그의 相互作用을 보았던바 그 結果를 要約하면 아래와 같다. 1. 幼穗分化期와 出穗期의 個體群 生産構造에 있어서 密植은 그들의 相互遮蔽를 가져오는 同化部의 空間配置로 因하여 個體群 受光能率이 N增肥의 影響에 比하여 크게 低減되는 것으로 보였다. 그뿐만 아니라 密植에 의한 同化部의 增加는 동시에 非同化部의 增加를 크게 가져오나 N 증비효과는 非同化部의 增加를 隨伴치 않았다. 그러므로 C/F 比에 對한 밀도효과는 없으나 N增肥는 그것을 현저히 적게 하였다. 따라서 個體群 同化力/呼吸力比로 보아 N 증비효과는 밀식효과에 비하여 鹽分地에서는 成熟期의 乾物生産을 크게할것이 分明하였으며 LAI에 對한 精租收量은 N증비효과가 밀도효과보다 더컸다. 2. N增肥는 第一伸張節間徑을 比較的 크게하였으나 密植함에 따라 第一伸張節間徑이 작아졌다. 3. 密植과 N增肥에 의한 穗數의 增加는 다같이 顯著하였으며 栽植密度가 높음에 따라 유효경 比率이 크게 떨어 졌으나 N 增肥는 어느 境遇에서도 유효경비율을 현저히 증가시켰다. 穗重에 對한 밀도효과는 현저하였으나 20㎏/10a 에서는 穗重이 크게 떨어졌다. 4. 鹽分地에서는 N增肥는 千粒重과 稔實率을 낮게 하였으나 穗當粒數에는 影響하지 않았다. 密度增加는 千粒重과 稔實率에는 영향하지 않았으나 穗當粒數를 크게 떨어뜨렸다. 5. 以上과 같이 N增肥 효과와 密度의 효과는 生産構造와 收量要因들에 相異한 影響을 미치므로 密度가 N施肥水準은 恒常 2要因을 연관적으로 다루어야 할것으로 생각되었다. 그리고 이와같은 結果로 精租生産에 對한 N增肥曲線은 干拓地에서 15㎏/10a를 變曲點으로 하는 報酬漸減의 現象이 나타났고 또한 N 10㎏/10a를 除外한 두 N 施肥水準에서는 3.3㎡當 100株植을 變曲點으로 最終收量一定의 現象이 나타났다. Field studies were conducted with Kusabue variety and factorial design of 12 treatments composed of 3 levels, 10㎏, 15㎏ and 20㎏ of N per 10a, and 4 levels of 80, 100, 120, and 140 hills per 3.3㎡ plot in reclaimed salty area having an average of 7.5㎜hos/㎝ (25℃), 0.48% salt concentration. The light recieving efficiency of plant canopy was greatly reduced by close planting when compared with the effect of increased N applications in heading stage. The spacing effect on the C/F ratio was not noted but was reduced markedly by the increased N applications, accordingly the spacing effect on rough rice yeilds to the LAI was less than by the increase N application. Closer spacing increased the number of panicle, and non-effective stems, decreased the number of grains per panicle and panicle weight. The increased N applications also increased the number of panicle, reduced the weight of 1,000 grains and the ratio of matured grains. It is recommended to plant 100 hills per 3.3㎡ with the application of 15㎏ N per 10a in the reclaimed salty area of Korea.

不姙誘起物質 TEPA 가 쌀바구미 (Sitophilus oryzae LINNE)에 미치는 影響

玄在善,沈載昱 서울대학교 1965 서울대학교 論文集 Vol.16 No.-

The rice weevil, Sitophilus oryzac L. was treated with various concentrations of tepa[tris(1-aziridinyl phosphine) oxide] at various immature stages. Observations were made for the mortality during the growth, effects on the emergence days, the number of eggs laid when treated weevils mated with untreated weevils, and the mortality of the progeny during the growth period. Following conclusions were made : 1. The mortality of the weevils was the greatest with larval treatment, the egg treatment was the next, and the pupal treatment was the least. 2. When weevils were treated with various concentrations of tepa, the effects on the growth period was much more vary with pupal treatment, and the least variation was observed with larval treatment. 3. The treated weevils were mated with the untreated weevils and number of eggs laid was compared. Treated females laid less eggs than normales. 4. The mortality of the progeny was examined and found that the greatest mortality was observed with larval treatment; When treated with 1% solution of tepa at larval stage, mortality were 66.2% for the male treatment and 70.4% for the female treatment respectively. 5. It seems to be important to evaluate a chemosterilant in the point of total control of reproduction.

80年代를 向한 農業科學技術開發을 爲한 方向設定에 關한 硏究

李春寧,禹保命,沈載旭,金顯旭 서울大學校 農科大學 1981 서울대농학연구지 Vol.6 No.1

Presently, Korean agriculture finds itself in a transition period. On one hand, it must increase its supply of agricultural products based on the sound development of agriculture. On the other hand, it must strengthen its international competitive power, facing with import liberalization for overseas surplus farm products. Under these circumstances, Korean agriculture has to pay its utmost priority attention to the productivity increase per unit of resources which may be possible by the development of scientific technical know-hows since there are limits in the development and use of agricultural resources in Korea.