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        • KCI등재

          在來種大豆의 主要 形質特性

          S.H. Kwon(權臣漢),J.R. Kim,(金在利)H.S. Song(宋禧燮),K.H. Im(任建爀) 한국육종학회 1974 한국육종학회지 Vol.6 No.1

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          782 local soybean lines currently grown by Korean farmers were collected in the Korean peninsula and studied their important agronomic traits for two years grown at the Experimental Farm of the Korea Atomic Energy Research Institute in Seoul. About 13 percent of these collected lines have produced seeds over 1,000㎏ per hectar and some of them wee apparently superior to the leading varieties grown in the identical conditions. Maximum seed size within this collected population was 42.4g per 100 seeds and 17 percent of this population posesses of seed size over .30 g/100seed. 66 percent of the population was belong to the maturity group IV and V and maturity group 00 and over VII were not found from the collection. Plant height was ranged from 126㎝ to 45㎝ and frequency distribution for plant height shows normal curve. Seed yield possitively correlated with seed size, while negatively associated with flowering, maturity, and plant height.

        • KCI등재

          水稻 突然變異系統의 세가지 形質의 遺傳硏究

          S.H. KWON(權臣漢),J.L. WON(元鍾樂) 한국육종학회 1978 한국육종학회지 Vol.10 No.2

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          Rice mutant having brown spot color on lemma, earliness and long culmness was obtained from a population of X-irradiated Jinheung variety. To Analyse gene controlling the mutant character and to verify genetical relationships among the three characters, crossing between mutant and mother variety was made. Segregation in F₂ of each character revealed that the charactors were controlled by monogenic recessive gene and the three characters were inherited simultaneously. This implies that the mode of inheritance might be resulted by either pleiotropism or close linkage relationship of the three characters, and a definite answer will become clear by further experiments.

        • KCI등재

          突然變異育種의 現況과 展望

          S.H. KWON(權臣漢),J.L. WON(元鍾樂) 한국육종학회 1979 한국육종학회지 Vol.11 No.2

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        • KCI등재

          大豆 葉의 綠色程度와 葉綠素含量 및 收量間의 關係

          S.H. KWON(權臣漢),J.R. KIM(金在利) 한국육종학회 1979 한국육종학회지 Vol.11 No.2

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          Seventeen Korean soybean varieties and 28 introductions from several countries were studied to determine the difference in the amount of chlorophyll and the relationships of visual observation in green pigmentation with chlorophyll content and seed yield. The amount of chlorophyll a, chlorophyll b and total chlorophyll in tested varieties showed considerable variation. The chlorophyll a ranged from 2.44 to 7.32 mgr and the chlorophyll b from 2.88 to 9.16 mgr. In total chlorophyll, the variety Lincoln introdued from U.S.A. had much higher content as 16.22 mgr and the variety P_5 from Vietnam showed much lower content as 5.32 mgr than other varieties, respectively. Highly significant relationships were found for chlorophyll a to chlorophyll b and for chlorphyll a and b to total chlorophyll. However, no relationship between visual differences in greenness and total chlorophyll with seed yield in this experiment suggest that visual observation could not accounted for the significant means to determine the quantitative differences of chlorophyll and seed yield in soybeans.

        • KCI등재

          大豆品種間 耐冷性의 差異에 關한 硏究

          S.H. KWON(權臣漢),Y.I. LEE(李榮日),J.R. KIM(金在利),I.C. SHIN(申仁徹) 한국육종학회 1980 한국육종학회지 Vol.12 No.2

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          Germination test with 1,429 Korean native soybean lines was made at 10℃ for the selection of cold tolerant lines. Out of the entries tested, 62 cold tolerant lines and 56 cold intolerant lines were identified. Most of cold tolerant lines were originated from the provinces of Kyonggi and Kangwon, and the cold intolerant lines were collected from Kyongnam and Cheonnam provinces of Korean Peninsula. Most cold tolerant lines have black and brown seed coat color, while the cold intolerant lines have yellow and green seed coat color. For a field test, the selected two groups were planted twice on 4 April and 15 May 1979, and emergence, plant height and other related agronomic characters were investigated. Percent of emergence and plant height in the cold tolerant group were significantly higher than those identified as cold intolerant lines at early growth stages under the chilly spring condition. Number of nodes and branches and plant height at the time of harvest were not increased in cold tolerant lines, but number of pods was significantly increased.

        • KCI등재

          무궁화 突然變異 育種을 위한 放射線感受性과 Chimera에 關한 硏究

          S.H. KWON(權臣韓),J.L. WON(元鍾樂) 한국육종학회 1980 한국육종학회지 Vol.12 No.1

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          Radiosensitivity of gamma-irradiated Hibiscus syriacus and chimera formation were investigated. The lethal dose 50 percent with respect to seeding and cuttings was 15kR and 2~3kR respectively, chlorophyll mutation rate of seeds irradiated with 15kR being about 13 percent. The degree of chimeric leaf mutants from the buds by radiation treatment depends on the bud position of the branch. Buds of the middle part of V₁ branch seemed to be more multi-cellular condition than the upper and low part when irradiation was made. It is assumed that at least two primordia of V₂ branch were already differentiated from the V₁ branch in Hibiscus syriacus plant.

        • KCI등재

          突然變異育種을 위한 推薦放射線 照射線量

          S.H. KWON(權臣漢),J.L. WON(元鍾樂) 한국육종학회 1978 한국육종학회지 Vol.10 No.2

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        • 파종시기별 콩줄기굴파리 (Melanagromyza sp.)의 발생 및 피해조사

          신한,정규회,이영일,류준,Kwon S.H.,Chung K.H.,Lee Y.I.,Ryu J. 한국응용곤충학회 1981 한국식물보호학회지 Vol.20 No.2

          For the investigation of seasonal fluctuation of immature (lavae and pupae) beanfly, infestation rates, and habit, several soybean-cultivars were planted at Kumgok Experiment Farm of KAERI by three different planting times at 25-day intervals. Infestation rates of beanflies were ranged from $85\%\;to\;100\%$ in accordance. with the planting dates, where an increase in infestation rate was found with delay in planting dates. Immature beanflies were already observed from lune 20 by plant dissection counts. Three peaks of the seasonal fluctuation of lava were shown by occurring on July 10, August 10 and 50 during the soybean cultivation, while two peaks of pupal appearances were found. The most high peaks of lavae and pupae occurred on August 10 and 30, respectively. The lava were habitable in the pith or cortex tissue of soybean stem. They prepared tiny hole on the axilla as well as the internode of stem, and then they pupated in the holes from which the adults are able to escape. Immature beanfly seemed to prefer invading to the underground part of the stem when the soybean plants were in young stage. 대두의 해충인 콩줄기굴파리의 정확한 생태를 파악코저 충북백외 4품종을 5월 20일, 6월 15일, 7월 10일 등 파종기를 달리하여 재식하고 콩줄기굴파리의 발생 소장과 가해상태, 피해율등을 조사한 결과를 요약하면 다음과 같다. 1. 유충이 6월 20일 출현되는 것으로 미루어 성충의 첫 출현은 6월초로, 또 년중발생회수는 3회내외로 추정된다. 2. 콩줄기굴파리의 서식부위는 줄기내부의 수조직으로 유묘기에는 지상부보다 지하부쪽에 더 많이 서식한다. 3. 용화위치는 절간 줄기와 엽액이 되며 노숙유충은 장차 성충이 탈출할 수 있는 구멍을 들어 놓고 그속에서 용화한다. 4. 콩줄기굴파리의 유충발생은 7월 10일, 8월 10일, 8월 30일에 각각 peak를 이루고 8월 10일의 Peak가 가장 늦었다. 5. 용의 발생은 6월 20일과 9월 10일에 각각 2번 peak를 이루고 그중 9월 10일의 peak가 가장 높았다. 6. 전반적인 콩줄기굴파리의 피해율은 $85\~100\%$로 만파일수록 높았다.

        • KCI등재

          在來種大豆와 野生種大豆의 種實變異에 關한 硏究

          S. H. Kwon(權臣漢),K. H. Im(任建爀),J. R. Kim(金在利) 한국육종학회 1972 한국육종학회지 Vol.4 No.1

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          本 試驗에서는 中部以南 全域에서 蒐集한 一般農家栽培種, 命名된 在來品種, 野生種, 美國, 臺灣, 越南에서 導入한 品種, 그리고 野生種과 栽培種間의 交配後代에 對한 種實重의 變異를 調査하였다. 1. 農家傳來種의 種實重의 分散은 뚜렸한 2個의 頂點을 갖이는 曲線을 그리고 있으며 이는 우리나라 現在 大豆를 크게 두個 集團으로 區分해 볼 수 있음을 나타내는 것으로 그 平均 百粒重은 各各 12g와 24g 이었다. 2. 農家傳來種의 分布를 보면 南部地方에는 小粒種이 많이 栽培되고 있고 中部地方에서는 大粒 乃至中粒種이 栽培되는 傾向을 알 수 있었다. 一般的으로 우리나라 大豆는 外國種에 比해 大粒型이 많이 栽培되고 있으며 全國에서 蒐集한 500餘種에 對한 平均百粒重은 22.2g이었으며 最高 44.8g서부터 最低 6.2g까지였다. 3. 우리나라 栽培種의 最低 百粒重 6.2g는 野生種中間型 百粒童 7.4g보다 작았다. 野生種과 栽培種間의 交雜은 容易하였으며 F₁와 F₃의 種實重은 兩母品種 사이에 分布하였으며 F₂의 一粒重 平均은 兩親의 幾何平均에 近似하였다. This investigation was conducted to determine the variation of seed weight for land races, local named varieties, wild type collections, some introduced varieties, and F₂and F₃generations of a cross between cultivar and wild type of soybeans. Land races currently grown by farmers were consisted with distinctly different two groups and averages of seed weight of the groups were 12g and 24g respectively. In general, the soybenan seeds grown in southern part of Korean peninsular were smaller than the seeds collected in middle part of the peninsula. The cultivars grown in Korea are relatively large in seed size in comparison with the varieties grown in other countries. The seed weight of the collected land races ranged between 44.8 grams per 100 seeds and 6.2 grams and the average weight was 22.2 grams. Seed weight of F₂and F₃generations of a cross between wild and intermediate type ranged between parents and the average weight per seed of F₂generation was close to the value of geometric mean of the parents.

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