• 한국응용곤충학회지
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• 제11권1호
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• pp.25-30
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• 1972

방사선을 투사한 이화명나방의 교미능력 및 경쟁력 조사를 5-7령 번데기에 gamma선을 투사하여 조사하였다. 얻어진 결과는 다음과 같다. 1. 방사선 처리웅충과, 정상적인 수컷에 매일 새로운 미교미자충을 넣어 주었을 때 그들간에 교미 최고회수에는 유의차가 없었다. 2. 교미초일은 정상웅충의 경우 평소 1.5일이며 25.30Krad 처리웅충은 2.4일이었다. 교미 일 간격은 정상웅충이 1.3일인데 대하여 처리웅충은 3.0일이었으며 방사선 투사는 교미력에 영향이 있었다. 3. 정상웅충 1두에 정상자충 5두와 10두씩을 넣어서 정상웅충의 평균교미회수를 조사한 겨로가 1.2회와 2.5회이었다. 4. 교미경쟁력 실험에서 미교미자충 5두에 대하여 방사선 투사 웅충과 정상웅충의 비율을 1:0, 1:1, 2:1, 1:2, 5:1, 1:5, 0:1로 하였을 때 난부화 감소율은 5:1(30Krad)에서 최대의 감소를 보였으며 이때의 난부화율은 $26.6\%$이었다. 5. 방사선 투사는 교미능력에 다소의 영향을 미치나 처리웅충에 의한 산란수 감소의 영향을 고려한다면 이화명충에서 웅성불임 기술의 이용은 가능할 것으로 생각된다.

• 한국양식학회:학술대회논문집
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• 한국양식학회 2003년도 추계학술발표대회 논문요약집
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• pp.40-40
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• 2003

DNA content of the sperm of tetraploid mud loach (Misgurnus mizolepis) males and the ploidy status of progenies generated by crossing tetraploid males with diploid females are described. Reproductive performance of the induced adult tetraploid males ranged from sterility to fertility. Of 48 tetraploid males tested, 12 were sterile but the other 36 produced functional sperm. Of these 36, 26 produced haploid sperm, which on fertilizing the haploid eggs, generated diploid progenies. Seven tetraploid males were mosaics in their sperm, as indicated by the production of diploid, aneuploid and/or triploid offspring. Only 3 males produced diploid sperm rendering the production of all-triploid progenies. The DNA content of sperm of a tested tetraploid male was consistent throughout the 3 progeny tests, i.e. the haploid sperm-producing 4n males persisted to produce the haploid sperm only likewise the diploid sperm producing4n males consistently produced the diploid sperm only, when progeny testing was extended to 3 successive but alternate years. Hence, a careful and direct examination of the DNA profile of sperm from tetraploid males is a pre-requisite for reproductive containment of genetically modified fish.

• 한국응용곤충학회지
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• 제13권3호
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• pp.141-144
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• 1974

쇠파리의 실내 대량사육을 위한 시험에서 산란전기간을 단축 시킴으로써 사충율을 저하시키며 누대사육에 의한 위소현상을 조사하기 위해 각 세대별 용중량의 차이를 조사 하였으며 쇠파리는 성충기 이외에는 자웅구별이 불가능하므로 용중량에 의한 성구별을 시도한 결과는 다음과 같다. 1) 유충 media로부터 용을 분리할 때 사용하는 물을 약 $25^{\circ}C$로 가온하여 용을 채취한 결과 산란전기간이 8일로 단축되었다. 2) 누대사육에 의한 세대별 위소현상 조사에서 명세대별 용중량차이에는 유의성이 없었으며 사육온도에 따라서 많은 차이를 보였다. 3) 용중량의 차이에 의한 성구별은 약 $60\%$의 웅충구별이 가능하였다.

• 한국작물학회지
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• 제27권4호
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• pp.470-479
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• 1982

Researches on industrial crops in Korea before 1962 were concentrated on fiber crops such as cotton, kenaf, hemp, ramie and flax. Then research works on oil crops, sugar crops and other high income crops were followed. However, no land is shared for the production of kenaf, flax, sugar beet, sweet sorghum and sunflower at present in Korea, while the cultivation of cotton, hemp, ramie and mat rush is decreasing continuously to the marginal point. At present researches are emphasized on oil crops such as seasame, peanut and perilla and high income medicinal herbs of which cultivating acreages are increasing. Numerous varieties were released as a result of active breeding works on industrial crops since 1962, i.e. 3 sesame varieties including "Suweon 21", 3 peanut varieties including "Seoduntangkong", and 6 rape varieties including "Yudal" in oil crops, one cotton variety "Mokpo 7", one hemp variety "MS4-1", and one kenaf variety "Suweon 2" in fiber crops, and two stevia varieties "Suweon 2" and "Suweon II" in sugar crops. Quality improvement of rape seeds and development of hybrid rapes utilizing male sterile lines are the most significant results of breeding works, while the establishment of vinyl mulching cultivation of sesame and peanut are the most successful results in agronomic researches during the last 20 years.re the most successful results in agronomic researches during the last 20 years.

• ALGAE
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• 제25권3호
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• pp.105-113
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• 2010

A new red algal parasite, Symphyocolax koreana M. S. Kim, gen. et sp. nov., has been found on a specimen of Symphyocladia latiuscula (Harvey) Yamada, a member of the tribe Pterosiphonieae of the Rhodomelaceae; this genus has never before been reported to host red algal parasites. Here, the new parasite from Korea is described in terms of vegetative and reproductive morphology. The thallus has a minute, colored polysiphonous upright axis with many branches attached by pseudoparenchymatous pulvinate bases. There are six pericentral cells, with many corticated cells in the lower part of the main branches. Trichoblasts occur on dioecious male and female gametophytes, but not on tetrasporophytes. Procarps develop on suprabasal cells of trichoblasts and consist of a four-celled carpogonial branch and two sterile cells attached to the supporting cell. Spermatangial branches are borne one per each successive segment on monosiphonous pedicels in spiral positions with fertile trichoblast. Tetrasporangia are formed one per segment in a straight series and are tetrahedrally divided. Features of the vegetative axes, procarp, spermatangial trichoblasts, and tetrasporangial branching show that the new genus is an alloparasite belonging to the tribe Polysiphonieae.

• 한국응용곤충학회지
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• 제12권4호
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• pp.153-155
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• 1973

1. 침파리의 동계사육 결과 평균온도 $23.7^{\circ}C$에서 유충기간 7일, 용기간 9.2일, 전산란기간 14.2일, 성충수명 23.3일이었다. 2. 5월부터 7월까지 사육온도 $25\pm1^{\circ}C$로 고정시켰을 때의 생육기간은 유충기간 8.0일, 용기간 5.3일, 전산란기간 11.7일, 성충수명 30.1일 이었다. 3. 용 개체중량은 5월-7월의 $25\pm1^{\circ}C$에서 13.3mg으로서 현저한 증가를 볼 수 있었다. 4. 전산란 기간중의 성충사망율은 습도 조절(R. H.)에 따라서 큰 차이를 보여주었으며 누대사육을위해서는 $55-65\%$의 R.H.를 유지할 필요가 있을 것으로 본다. 5. 성충의 산란율은 산란 시작후 제8-10일에 제일 높다.

• The Korean Journal of Pain
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• 제23권4호
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• pp.270-273
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• 2010

Acupuncture has been widely used in alternative medicine for pain relief but may have many complications due to lack of appropriate cares. Pharmacopuncture is a sort of acupuncture that injects a herbal ingredient through a thin tube for the purpose of combining the effects of the herb and acupuncture and it has many pitfalls. The agents, used in pharmacopuncture are not refined for a desired effect and not produced by sterile standard processes under strict medical surveillance. We, report a case of a 44-yr-old male patient who had multiple abscesses in the psoas region with fever, right low back and hip pain that began after the pharmacopuncture treatment. This case shows that although pharmacopuncture has been practiced widely, it is important that the appropriate aseptic technique should be used to prevent severe infections and other complications.

• 한국연초학회지
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• 제18권2호
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• pp.126-131
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• 1996

In this study effects of isolation distance, transplanting time of maternal plants, and bagging of flower head with the gauze-cloth bag on the outcrossing of burley tobacco (Nicotiana tabacum L.) were investigated. Also the effect of fertilizer level and control of the number of capsules per plant on seed production and quality were examined. A male sterile line. produced 0.3 to 3.8 capsules Per plant when it was Planted with normally flowering tobacco with the average outcrossing of 7.2 plants, ranging from 2 to 18 out of 20 plants. With the farther the isolation distance between maternal plants and pollen donor plant, the lower the outcrossing occurred. Outcrossing occurred even at the isolation distance of 312 m. When the maternal plants were transplanted 35 days after transplanting the pollen donor ones, the outcrossed plants were not decreased significantly. The bagging of the flower head with the gauze-cloth bas (#0.9∼ 1.0 mm) decreased the outcrossed plants significantly, but couldn't prevent the outcrossing completely. The seed amount per plant was higher in the highly fertilized cultivation. The number of seed capsules per plant affected significantly on seed yield and quality. When the seed capsules was controlled by 30 or 50 capsules per plant, the weight of 1,000 seeds and germination rate were higher than those with 70 or 90 capsules per plant. Key words : Nicotiana tabacum, outcrossing, bagging.

• 한국연초학회지
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• 제15권2호
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• pp.111-114
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• 1993

This study was carried out to obtain the basic information for breeding of aromatic burley tobacco, and to select the breeding lines with higher DVT (diterpenes $\alpha$-and $\beta$-4, 8, 13-duvatriene-1, 3-diols) and cis-abienol (Z-labda-12, 14-diene-8$\alpha$-ol) concentrations. The parental genotypes used to develop the Fl and Fl generations were Burley 21, Ky 17, male-sterile(MS) NC 107, TC 612, TC 613, Va 509 and Tl 1068. To estimated the modes of inheritances of DVT and cis-abienol known as the flavor and aroma compounds, the method of thin - layer chromatography (TLC) was used. It was considered that TLC procedure being relatively simple and reproducible in the selection of the breeding lines with higher DVT and cis-abienol. DVT was present in all of parents except MS NC 107, but cia-abienol presented only in Tl 1068. It was estimated from the TLC analysis of parents and Fl's that DVT and cis-abienol were each inherited by dominant gene or genes. But it was less clear to determine the presence or not of sucrose ester(SE) on the TLC plate. The eleven plants which had burley leaf color and also estimated to have DVT and cis-abienol were selected in the F2 population of three combinations.

• 한국작물학회지
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• 제45권5호
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• pp.343-346
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• 2000

Rye breeding using F$_1$ hybrid began about 30 years ago, when cytoplasmically inherited forms of male sterility (CMS) and corresponding nuclear restorers were detected. It is very important to produce inbred lines for making hybrid lines because of strong self-incompatibility in rye. Among the 456 rye germplasms used in hybrid breeding scheme, 24 lines (5.3%) had the above 60% of self-fertility, and six lines of them were selected for their good agronomic characteristics and were used for subsequent inbreeding program. The average self-fertility of selected six lines was 78.4%, ranging from 72.2 to 99.5%. Genetic analysis for the self-fertility using $F_2$ populations showed that the segregation of self-fertile and sterile plants in F$_2$populations could be fit into 3 to 1 ratio suggesting self-fertility in rye be controlled by one major gene. The four different self-fertile lines, PI237923, 5C11, 5G5 and Florida black, had the same self-fertility gene because their F$_2$ plants showed almost the same self-fertility as their parents and showed no genetic segregation.