• International Journal of Industrial Entomology and Biomaterials
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• 제13권2호
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• pp.85-95
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• 2006

Seveval Chinese and Japanese varieties with good characters were used in the breeding. After 5 years (15 generations), a pair of robust and high quality silkworm variety with NPV resistance was bred by means of a combination of crossing and pedigree selection complemented by the selection of NPV resistance. The variety was identified jointly nationwide in 2003 and 2004, and appraised by National Mulberry and Silkworm Appraising Committee. Results are as follows: its cocooning rate is over 93%, shell rate 23-25%, filament length 1200-1300 meters, reelability 75-88%, Length of non-broken cocoon filament 900-1100 meters, raw silk rate 17-19%, neatness 95-97 points, and cocoon crop, cocoon shell weight and raw silk weight per 10000 larvae is higher than those of the control variety by 7-10%, 14-19% and 14-18%, respectively. The variety is not only robust, resistant to high temperature and NPV, easy to rear, uniform in hatching, molting and maturing, but also lays more eggs, and its fecundity is high. It is suitable to rear in the Yangtze River Basin, the Yellow River basin and the Pearl River basin of China.

• International Journal of Industrial Entomology and Biomaterials
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• 제32권2호
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• pp.54-59
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• 2016

All of silkworm varieties reared in farmhouses are first generation hybrids, for the production of these hybrid silkworms precise and labor-saving sex discrimination is necessary. The new variety "Hanbyeolnue" is biparental sex-limited larval marking yellow cocoon variety which was bred from biparental sex-limited strain of Japanese originated Jam 319 and Chinese originated Jam 320. Productivity test of Hanbyeolnue in 2015 showed high healthiness and short larval period. The Hanbyeolnue was evaluated as an excellent variety which can be utilized for special purpose silkworm such as male pupae or Cordyceps production.

• 한국식물학회:학술대회논문집
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• 한국식물학회 1994년도 94 Symposium on Plant science September 10, 1994 Ewha Womans University, Seoul, Korea 94 식물학 심포지움 환경 스트레스와 식물의 반응
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• pp.29-39
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• 1994

Serious issues about the changes in the environmental conditions on earth associated with human activities have arisen, and the interest in these problems has increased. It is urgent to determine how the expansion of terrestrial UV-B radiation due to the stratospheric ozone depletion influences living matters. In this connection, we have been investigating the effects of UV-B radiation on the growth of rice cultivars (Oryza sativa L.). We report here some physiological and genetic aspects of resistance to inhibitory effects of UV-B radiation on growth of rice cultivars as described below. Elevated UV radiation containing large amount of UV-B and a small amount of UV-C inhibited the development of plant height, the photosynthetic rate and the chlorophyll content in rice plants in a phytotron. Similar results were obtained in experiments, in which elevated UV-V radiation. Similar results were obtained in experiments, in which elevated UV-B radiation (transmission down to 290 nm) was applied instead of UV-B radiation containing a small amount of UV-C. The inhibitory effects of UV radiation was alleviated by the elevated CO2 atmospheric environment or by the exposure to the high irradiance visible radiation. The latter suggested the possibility that the resistance to the effects of UV radiation was either due to a lower sensitivity to UV radiation or to a greater ability to recover from the injury caused by UV radiation through the exposure to visible radiation. The examination of cultivar differences in the resistance to UV radiation-caused injuries among 198 rice cultivars belonging to 5 Asian rice ecotypes (aus, aman, boro, bulu and tjeleh) from the Bengal region and Indonesia and to Japanese lowland and upland rice groups showed the following: Various cultivars having different sensitivities to the effects of UV radiation were involved in the same ecotype and the same group, and that the Japanese lowland rice group and the boro ecotype were more resistant. Among Japanese lowland rice cultivars, Sasanishiki (one of the leading varieties in Japan) exhibited more resistance to UV rakiation, while Norin 1 showed less resistance, although these two cultivars are closely related. It was thus indicated that the resistance to the inhibitory effects of UV radiation of rice cultivars is not simply due to the difference in the geographical situation where rice cultuvars are cultivated. Form the genetic analysis of resistance to the inhibitory effects of UV radiation on growth of rice using F2 plants generated by reciprocally crossing Sasanishiki and Norin 1 and F3 lines generated by self-fertilizing F2 plants, it was evident that the resistance to the inhibitory of elebated UV radiation in these rice plants was controlled by recessive polygenes.

• 식물분류학회지
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• 제31권3호
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• pp.283-309
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• 2001

분류학적으로 어려움이 있는 고로쇠 분류군(Acer pictum complex)은 한국, 중국, 일본의 고로쇠와 여러 변종 이외에 만주고로쇠, 우산고로쇠 등이 포함된다. 고로쇠 분류군의 주요 형질은 대부분 열매의 크기, 각도, 날개의 크기, 잎의 결각 등 정량형질로 인정되고 있어, 본 연구는 한중일(韓中日)의 125개체, 17개의 정량 형질, 5개의 형질간 비율 등 모두 22개의 형질로 다변량(PCA분석)과 단변량분석을 실시하였다. 다변량분석에 의하면 3개의 성분(PC) eigenvalues 누적비율이 0.59(ca. 59%)로서 매우 낮은 수치를 보였고 대부분 PCA상의 좌표 중앙에 몰리면서 종간 차이가 중첩되었다. 분포 영역의 동쪽에 분포하는 울릉도의 우산고로쇠는 열매와 잎의 형태에 있어 일본의 서쪽연안(일본해(日本海)=동해(東海))의 개체들과 중첩되었다. 한국의 경기도 서해안과 강원도 일대의 일부 개체중 중국 동북부에 분포하는 만주고로쇠형이 일부 관찰되었지만 한국의 고로쇠와 전형적인 만주고로쇠형(날개와 종자의 비=0.7이상)의 중간 형태를 확인하였다. 조사 형질중 날개의 길이, 날개/종자 길이의 비, 열매 각도는 우산고로쇠, 티벳고로쇠, 만주고로쇠 등을 구분하는 양상을 보였지만 한중일(韓中日)의 고로쇠 개체를 포함할 경우 모두 연속 변이로 확인되어 종간 식별이 불가능하였다. 따라서, 중국 내륙에서 일본까지 분포하는 고로쇠와 중국 동북부지역에서 황하강이북, 한국 북부, 중부지방의 경기도섬과 강원도지역에 분포하는 만주고로쇠, 울릉도의 우산고로쇠, 중국 남부에서 일본 Hokkaido이남에서 한국의 남부에 분포하는 털고로쇠는 모두 하나의 종으로 보는 것이 타당하다. 그러나, 조사된 정량적 형질이외에 종간 식별에 중요한 정성적 형질(털의 유무, 수피형태)과 지리적 분포를 고려하여 국내 분포하는 분류군을 고로쇠, 털고로쇠, 만주고로쇠 등 3 변종으로 정리하였다.

• 한국잠사곤충학회지
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• 제23권2호
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• pp.11-36
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• 1982

본 연구는 누에의 인공사료를 개선함에 있어서 사료자원을 저렴한 가격으로 손쉽게 취득할 수 있는 방법을 연구하기 위하여 49종의 식물과 5종의 Cellulose원에 대하여 사료자원으로서의 적부를 검정하고 한편으로는 82종의 보존잠품종에 대한 계통별 섭식상황을 조사하고 또한 사육조건에 따른 섭식성의 차이와 잠체내의 효소활성과의 관계에 관하여 시험한 결과를 요약하면 다음과 같다. 1. 공시할 49종의 식물중에서 대조구(기본인공사료)보다 모진율, 2령기잠률 및 기잠체중이 더 높은 것은 동부, 오리나무, 결명차, 고구마, 토끼풀, 벚나무, 콩등이었다. 2. 모진율과 2령기잠률이 우수한 동부, 고구마. 방동산이, 오리나무 결명차, 망초구를 선발하여 전령사육을 행한 결과 대조구에 비하여 최성잠체중과 견중이 무겁고 화통비율도 더 높았으므로 이들 식물은 인공사료자원으로 이용할만한 충분한 가치가 인정되었다. 3. 인공사료조성에 첨가할 Celluloso원은 뽕나무 Cellulose가 잠체중과 견층비율이 높고 감잠비율은 낮으며 과과일수가 짧아서 가장 좋은 결과를 보여주었다. Cellulose조제방법은 NaOH처리법이 가장 간편하고 가공비도 절약되었다. 4. 우리나라 보존잠품종 82종의 인공사료에 대한 섭식성은 잠품종에 따라 차이가 있고 계통간에도 차이가 인정되었는데 대체로 일본종계가 양호한 편이고 중국종계, 구주종계의 순이다. 5. 사료조건이 상이한 경우 즉 인공사료육에서 상엽육으로 또는 상엽육에서 인공사료육으로 전환하는 시기는 다같이 4령초기가 적당한 것으로 생각되며 3령기도 무방할 것 같다. 6. 인공사료육에 적당한 온도범위는 1~3령기는 3$0^{\circ}C$, 4~5령기는 28$^{\circ}C$로 밝혀졌으며 전령 27$^{\circ}C$도 거의 비슷한 사육결과를 보여 주었다. 7. 잠품사별, 사육온도별 그리고 사료원별로 Esterase 및 Phosphatase의 Agarose gel 전기영동상을 비교해 보면 1) 상엽육과 인공사료육잠아의 중장 Esterase영동상은 잠령기별로 서로 다르고 상엽육잠아에는 인공사료육잠아에 비하여 1~2개의 활성대가 더 많이 나타나고 있다. 2) 인공사료에 대한 섭식성이 양호한 중 15는 섭식성이 불량한 중 60희에 비하여 중장 Esterase활성대가 1~2개 더 많은 경향이 있었다. 3) 사육온도별로 3~4령잠의 중장 Esterase영동상을 비교하면 28$^{\circ}C$구는 3,4령 모두 5개활성대가 인정되었으며 35$^{\circ}C$구에서는 3령기에 4개활성대, 4령기에 6~7개의 활성대가 나타났다. 4) 중장 혈액 및 견사선의 Esterase영동상은 각기 상이하다. 즉 중장에는 5개활성대. 혈액에는 1개활성대, 견사선에는 3개활성대가 인정되며 발육 계제에 따라 활성대수에 변화가 있었다. 5) 중장 혈액 및 견사선의 Acid Phosphatase영동상을 보면 중장에는 3령잠에 1개, 4령잠에 2개, 5령잠에는 3개활성대가 인정되었으며 혈액에는 3,4령잠에 각1개, 5령잠에는 3개활성대가 인정되었다. 중잠과 혈액의 Acid phosphatase형은 잠품종간이나 사육온도간에 약간의 차이가 있기는 하지만 뚜렷하지는 않았다. 견사선에는 활성대가 나타나지 않았다.

• 한국식품위생안전성학회지
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• 제33권3호
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• pp.162-167
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• 2018

본 연구는 과일류의 국내 명칭에 상응하는 코덱스 명칭과 코드번호, 그리고 변경 또는 검토가 요구되는 국내 명칭과 분류를 파악하기 위해 수행되었다. 국내 명칭과 분류에 대해서는 식품공전과 식품의 농약 잔류허용기준 발간물을 그리고 코덱스에 대해서는 'Codex Classification of Foods and Animal Feeds'를 검토하였다. 연구 결과는 다음과 같았다. 첫째 구기자, 무화과, 석류, 오미자에 대한 분류가 국내와 코덱스가 다르므로 이에 대한 검토가 필요한 것으로 나타났다. 둘째 감, 감귤, 구기자, 금귤, 나무딸기, 대추, 대추야자, 리치, 매실, 머루, 모과, 복분자, 산딸기, 산수유, 앵두, 오미자, 유자, 으름, 자두, 코코넛, 키위, 탱자의 경우 국문 또는 영명을 국내에서 조차 달리 사용하고 있거나 코덱스와 차이가 있으므로 이들 식품 명칭에 대한 개정이나 검토가 필요한 것으로 나타났다. 셋째 복숭아의 경우 천도복숭아를 포함하는 지가 명확하지 않고 라즈베리와 나무딸기 둘 모두가 국내 영명이 Raspberry 이므로 이들 식품 명칭에 대한 면밀한 검토가 필요한 것으로 판단된다.

• 기록학연구
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• 제4호
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• pp.93-130
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• 2001

Chosen General Government initiated the activities of collecting and managing the archives from Chosen Dynasty because of necessity to push positively for its colonial policies. Particularly, such efforts of the regime resulted eventually in boosting their understanding on the Korea cultures, as well as contributed to their reigning Korea to an extent. Some aspects that reflect it are as follows. In 1910 Chosen General Government took over, and began to arrange and classify huge volumes of archives that were held by the royal family. During this period, they collected and arranged literatures that they took over from the earlier Korean government. In 1913, Chosen General Government increased enormously the varieties and volumes of the archives that they intended to collect. They started with collecting archives limited to those literatures that had existed in the civil sector before 1894. It can be noticed that just in 1913 Chosen General Government revealed their intention to collect and classify both royal archives and civil archives. With the work of collecting, classification and annotating archives, Chosen General Government commenced the compilation of Chosensa (Korean History). These efforts aimed at cultural assimilation and educating of Korean people, and in this process, the importance of Chosen Dynasty's archives was reconfirmed. One of the representative cases was a change of terminology. With the compilation efforts into full swing since 1915, Chosen General Government repeatedly started to use the term 'Saryo' (historical records) in connection with Chosen's literatures and archives. The term 'Saryo' previously had been used in Japanese literatures, and it is deemed that it was used as a term generally referring to archives of Chosen Dynasty from that time. This signifies that Chosen General Government began to involve their historical point of view in approaching to the archives of Chosen. As they broadened their understanding on Korea through the annotation of old literatures and compilation of Chosen History, they seriously set on the work of assimilating Korean people culturally aiming at gripping its reign on Korea. Archives of Chosen likewise were very crucial basic data for understanding Korea and its people, and Chosen General Government is deemed to have utilized the archives as a means to reign and assimilate Korean people.

• 한국응용곤충학회지
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• 제14권4호
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• pp.199-204
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• 1975

우리나라에 분포하고 있는 벼 도열병균의 생리형(레이스)의 분화 및 지역적분포와 년차적 변동을 알아보기 위하여 1962년부터 1971년까지 전국에서 채집분리한 1044개균주를 류별한 결과 T-레이스군이 4, C-레이스군이 15, N-레이스군 8, 모두 27개의 레이스가 유별되었다. 한국재래 및 장려품종과 일본형품종들이 주로 재배됐던 1966년이전에는 N-레이스군이$85\%$ 로 지배적이었으나 그이후 중국계통 및 통일품종의 재배면적이 늘어남에 따라 T레이스군이 $21\%$, C레이스군이 $42\%$로 증가하는 경향을 보였다. 1966년이전에는 T.C레이스가 수원지방을 중시으로 조금씩 발생하는 경향을 보였으나 그이후 점차 전국적으로 널리퍼져 지역적인 분포차를 인정할 수 없었다. 지금까지 우점레이스군으로는 N-2, C-8레이스가 널리 분포되어 왔고 특히 1970년이후 인도형과 재래품종과의 교잡종인 통일의 확대재배로 새로운 레이스(T-d 레이스)가 1973년부터 출현하여 지금까지 저항성을 보였던 Tetep이 이병성으로 나타나고 있어 앞으로 레이스의 추이와 통일계통등의 인도형 수도를 침해하는 새로운 레이스의 분화에 대한 연구 및 그에 대한 적절한 대책이 강구되어야 하겠다.

• 원예과학기술지
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• 제32권2호
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• pp.227-234
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• 2014

The responses to chilling temperature of 12 Korean cucumber varieties was compared to those of two U.S.A. (previously determined cold tolerant NC76 and 'Chipper'), and Chinese and Japanese germplasms. Seedlings of each entry were exposed to $4^{\circ}C$ (Experiment 1) and $1^{\circ}C$ (Experiments 2 and 3) at the first-true leaf stage for eight and nine hours, respectively, under 80% relative humidity (RH) and $149{\mu}moles{\cdot}m^{-2}{\cdot}s^{-1}$ photosynthetic photon flux (PPF). The chilling response [damage rating (DR)] of each accession was based on visual ratings (1 to 5) after treatment, where 1 = no damage, 2 = slight, 3 = moderate, 4 = advanced, and 5 = severe damage. Predictably the cumulative average DR of chilling tolerant line NC76 and 'Chipper' after chilling w as 1 and 1.1, respectively. Korean 'Nacdongchungjang' was most sensitive to chilling temperatures [DR = 2.3] when compared to the other entries examined. The sensitivity to chilling of 'Nacdongchungjang' was followed by Chinese 'Dongguan' [DR = 1.7]. In contrast, 'Saeronchungjang' (DR = 1) and 'Janghyungnachap' (DR = 1) were the most chilling tolerant of the Korean accessions examined and equivalent to the response of line NC76 and 'Chipper'. Nevertheless, chloroplast type genotyping of these accessions with known chilling-linked sdCAPS genomic markers revealed genotypic differences between chilling tolerant lines (NC76 and 'Chipper') and all Korean lines examined.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.201-201
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• 2017

Delayed stem senescence of soybean is a phenomenon of retarded leaf and stem yellowing, where plants maintain a high stem water content and remain chlorophyll in leaf and stem at maturity stage. This phenomenon was one of the most important physiological disease in Japanese soybean cultivation. The occurrence of delayed stem senescence was affected by sowing time. And the most of Japanese field, soybean seeds were sowed in June. June is the rainy season in Japan, and the soil water content of field become higher in this season. In this study, the effects of late sowing (July sowing) on the yield and the occurrence of delayed stem senescence in soybean cultivars Enrei, Tachinagaha and Ayakogane were examined from 2013 to 2015, in the experimental farm at Nihon University (Fujisawa-city, Kanagawa, Japan). The seeds of all cultivars were sowed in June (June-normal density plot) or July (July-normal density plot, July-high density plot and July-super high density plot) in field experiment. The pot experiments were carried out in 2014. In all cultivars, the yield of July-high density plot and July-super high density were higher than that of June normal density plot. And the yield of June-normal density plot was the same as that of July-normal density plot. In all cultivars, the occurrence of delayed stem senescence was increased by seeding in June sowing. And in July sowing plots, no significance difference in the occurrence of delayed stem senescence was observed among density plots. One of reason about the increasing the occurrence of delayed stem senescence in June-normal plot was the increasing of the damaged seeds by bean bugs. Add one of reason about the decreasing of the occurrence of delayed stem senescence of July plots was the decreasing of the amount of cytokinin supplied from root to top and water stress after the flowering time was improved compared with the June plot. In conclusion, the yield of Enrei, Tachinagaha and Ayakogane were not changed by changing the sowing time from June to July. In all cultivars, the occurrence of delayed stem senescence were decreasing by seeding in July.