Relationships Between Seed Yield and Visual Estimates of Seed Yield in Two Soybean Crosses

Shin Han Kwon(權臣漢) 한국육종학회 1970 한국육종학회지 Vol.2 No.1

1. 本試驗에서는 大豆의 두 組合 第 3 및 4世代에서 推定한 目測收量과 實收量과의 關係를 究明하였으며 收量에 對한 目測推定에 미치는 各種形質의 影響도 調査하였다. 2. 系統間 分散은 1% 水準으로 有意性이 있었으며 推定者間 그리고 推定者와 系統間의 交互作用에서도 高度의 有意性을 보였다. 卽 이것은 推定者問이 一致된 推定은 못하였으나 이 推定者들은 모두 收量에 關한 系統間을 區分을 할 수 있었음을 意味한다. 3. 實收量과 目測收豊推定値間에는 高度의 相關關係가 있었으며 多收系와 低收系의 目測分類는 比較的 正確하였다. 草長, 倒伏度, 開花期 및 成期熟는 모두 實收量과 目測收量과 깊은 相關이 있었으며 特히 草長과 倒伏度는 收量의 目測推定에 顯著한 影響을 미쳤다. 目測收量値로 推定한 遺傳力는 實收量値에서 보다 높았다. 4. 이와 같은 結果들은 大豆에 있어서 早期世代의 多收系 分別에 目測推定을 利用함으로서 不良系統을 除去하는데 相當한 效果를 걷을 수 있음을 暗示해 주고 있다. Relationships of visually estimated seed yield with actual seed yield and other agronomic characters were studied. in the F₃and F₄generations of the crosses Norchief×Harosoy and Norchief×Clark. (1) The variances among lines and interaction between observers and lines were highly significant at one per cent level. Highly significant correlation between actual seed yield and visually estimated seed yield was found in all tests. Visual seed yield estimate was affected strongly by plant height, lodging and maturity among various agronomic traits studied. (2) The results obtained in the study demonstrate that visual seed yield estimate could be used by an experienced breeder in separating high and low yielding progenies of soybean in early generations.

우리나라 大豆의 起源과 蛋白質 및 脂肪源으로서의 價値

權臣漢(Shin Han Kwon) 한국식품과학회 1972 한국식품과학회지 Vol.4 No.2

Genotypic variation of phytolectin in Korean land races and wild soybeans

Shin Han Kwon(權臣漢),Kyung Sook Park(朴京淑) 한국육종학회 1991 한국육종학회지 Vol.23 No.1

Two thousand and one hundred sixty-five land races and 164 wild soybeans of Korea were determined for the presence or absence of a seed lectin by hemaggulutination and double immunodiffusion. Three type of soybean line, high lectin(LeH), low lectin(LeL), and lacking(le) soybean seed lectin were found in this investigation. In contrast to Glycine max(0.8 %), the larger percentage (67.7 %) of the Glycine sofa were lack of soybean seed lectin. The seed lectin of Glycine soja were identical to Glycine max SBL by the immunologically. Korean and Chinese cultivars were observed in higher frequency of the lacking seed lectin compared with that of soybeans collected from other countries. Korean wild soybean were showed the highest(67.6-69.2%) percentage of the lectinless lines among the collections from various countries.

특수학급 교사 배경변인별 교육용 인터넷 활용 수업의 차이 분석

신재한 ( Shin Jae Han ),권영활 ( Kwon Young Hwal ) 아시아문화학술원 2016 인문사회 21 Vol.7 No.5

본 연구는 특수학급 교사 배경변인에 따른 교육용 인터넷 활용 수업의 차이를 분석하는데 그 연구의 목적이 있다. 본 연구의 목적을 달성하기 위해 특수학급 교사의 배경변인(성별, 연령, 교직경력, 교사 자격증, 컴퓨터 자격증, 학급당 학생 수, 한 시간 평균 수업 학생 수)에 따른 교육용 인터넷 활용 수업의 차이를 분석하였다. 본 연구는 2016년 6월 20일부터 7월 10일까지 D광역시 및 K도에 근무하고 있는 특수학급 교사397명을 대상으로 카이검증(χ2)을 실시하였다. 본 연구의 결론은 다음과 같다. 첫째, 교육용 인터넷 활용 수업에 대한 활용 정도, 활용영역, 활용 단계 등을 고려하여 특수학급 교사 배경변인에 적합한 교육용 인터넷 활용 수업을 실시해야 한다. 둘째, 시각장애, 청각장애, 지체장애 등 특수학생 장애 유형별로 적합한 인터넷 활용 수업이 가능한 콘텐츠를 개발해야 한다. 셋째, 특수교육용 인터넷 활용수업을 효과적으로 실시하기 위해서는 특수교육용 인터넷 활용 수업 콘텐츠를 잘 관리할 수 있는 LCMS(Learning Contents Management System)과 학생의 학습 이력을 검색, 조회, 독려 등을 수행할 수 있는 LMS(Learning Contents System)를 개발해야 한다. Teachers of special classes for physically and mentally handicapped students come from various backgrounds and each has the ability to use the educational internet usage in an individualized way. This study analyzed the difference of educational Internet use classes according to the special class teachers` background variables(gender, age, teaching experience, teacher certification, computer certification, the number of students per class, one hour average class students` number) in order to achieve the purpose of this study. For this study, the Chi-square(χ2) was conducted 397 teachers who worked at special classes from 20th June to 10th July in 2016. There are several results. First, educational internet usage in class will be different amongst teachers. It will vary by the amount they use the internet, how they use the internet, and how many levels of the internet they use. Proper educational internet usage in class must be developed for teachers. Second, various internet programs must be created because there are students that are blind, deaf and immobile. Third, various contents like LCMS, LCMS is a management program. LMS must also be developed in order to know students` history and encourage them.

녹두 갈색무늬병균(Cercospora canescens Ellis & Martin)의 분생포자 형성에 관한 연구

권신한,오정행,Kwon Shin Han,Oh Jeung Haing 한국응용곤충학회 1981 한국식물보호학회지 Vol.20 No.1

녹두 돌연변이계통의 갈색무늬병에 대한 저항성검정을 위하여 접종실험에 필요한 다량의 분생포자를 얻을 수 있는 배양조건 실험결과를 요약하면 다음과 같다. 1. 갈색무늬병균의 분생포자 형성에 적합한 배지는 기주식물조직배지인 녹두엽즙배지였으며 약 2500Lux의 형광조사는 분생포자 형성을 촉진시켰다. 2. 배양기상의 기중균사 거는 분생포자 형성을 현저히 증가시켜 OA배지에서도 MOA에서와 같은 량의 많은 분생포자 형성이 가능하였다. 3. 포자형성의 최적조건은 색소생성 및 균사장의 최적조건과 일치하지 않는 것으로 보였다. This study was conducted to obtain a supply of conidia sufficient for screening mungbean mutant lines for a source of resistance to Cercospora leaf spot caused by Cercospora canescens Ellis and Martin. Abundant sporulation occurred in cultures on mungbean leaf decoction oatmeal agar(MOA) exposed to about 2,500 Lux of fluorescent light. but it did not occur in continuous darkness. The conditions that produced maximum number of conidia was not coincided with those for vegetative growth and pigmentation in culture medium. Removal of aerial mycelium in culture by brushing with sterile water so enhanced the conidial production that oatmeal agar medium(OA) could be useful for production of abundant conidia by the treatment.

열대환경하에 있어서 대두재식밀도가 각종형질에 미치는 영향

권신한,Kwon, Shin-Han,Quyen, Nguyen H. 한국작물학회 1969 Korean journal of crop science Vol.- No.7

This experiment was conducted to determine the optimum row width and plant spacing within row under the tropical environment for a leading soybean variety Palmetto and it was carried out at Eakmat Experiment Station in Vietnam. The experiments were arranged in a split plot design with four replications and the test was repeated twice in two years. Variations for seed yield due to the distance between rows were significant at 1 per cent level in 1967 test(dry season growing) and at 5 per cent level in 1968 test. Significant differences for plant height, lodging, maturity, number of branches per plant, and number of pods per plant due to the row width were not found in both tests, while significant differences in difference spacing within row was found in all traits studied. Interaction between width of row and spacing within row for seed yield and plant height were found at five percent level in 1967 test. These results indicate that close planting may increase in seed yield and plant height in both seasons, and decrease in loadging. From these studies, one could be understood that the plant population, particularly in dry season, plays decisive roles on seed yield in soybean culture, and the maximum plant height and minimum value of lodging index were also observed in closest spacing plots. The highest soybean yield in late planting would be expected by a combinations of 30 cm(between rows)${\times}$5cm(between hills) plot, while 40cm ${\times}$ 5cm planting method would be suggested for rainy season growing. Highest seed yield was obtained at closet spacing in both dry and rainy season, and these results led to drilling method in seeding where about 20 seeds per meter of row could be recommended. Besides the seed yield, the close planting may produce some advantages, such as increase plant height and decrease lodging, weeds and erosion of surface soil.

도열병저항성 변이계통의 선발을 위한 인공접종법

권신한,오정행,송희섭,Shin-Han Kwon,Jeong-Hae Oh,Hi-Sup Song 한국작물학회 1974 Korean journal of crop science Vol.- No.15

본답에서 재배되고 있는 방사선돌연변이계통들의 도열병 저항성 검정을 위하여 절리엽편접종법이 시도되었다. 즉 포장에서 절취한 잎을 항온항습실내에서 punch압상을 만들고 그 위에 도열병균의 포자현탁액을 접종한 후 형성된 병반의 크기를 측정하여 계통간의 저항성정도를 비교한 결과 방사선조사된 풍광으로부터 Upland short row method에 의하여 선발된 저항성계통들은 모품종 풍광에 비하여 저항성으로 나타났다. 따라서 이 방법은 포장에서 재배되는 성숙식물체의 도열병저항성 검정을 위한 하나의 선발방법으로서 효과적이라 생각되었다. An attempt was made to develop a simple testing method fro blast resistance in the aged rice plant grown under the paddy field conditions. The blast resistance was tested with the detached 3rd leaves from the top of the plant, which were inoculated by dropping blast spore suspension mixed with 1% Tween 20 on the punched area and kept in 1% sucrose solution. The blast reaction was measured ten days after incubation at 26-28$^{\circ}C$ under highly humid conditions. With this method blast resistant lines were effectively identified and the cost of testing was cheap as compared with any other methods ever practiced.

대두 양적형질의 유전적 변이와 선발(I)

권신한,김재리,이경희,Shin-Han Kwon,Jae-Rhee Kim,Kyung-Heui Lee 한국작물학회 1976 Korean journal of crop science Vol.21 No.1

Considerably large phenotypic and genotypic variations for the important agronomic traits were found in a soybean population consisted with 825 local lines collected in Korea. Genetic coefficient of variation, heritability, and genetic gain for seed weight, plant height. and number of pods per plant were relatively high. Maturity showed a high heritability value with a low genetic gain and the result may be due to the narrow range of maturity date of the population studied. 본 실험은 대두육종을 위한 유전자원으로서 우리나라 재래종 825계통을 대상으로 2년간 재배하면서 그 집단내의 유전적 변이성과 특성을 구명하고 이들을 이용한 다수확 품종의 육성에 필요한 정보를 획득하는데 목적이 있으며 그 결과는 다음과 같다. 1. 단위면적당 평균 수량은 1,004.1kg/ha이고 대부분의 계통이 795kg에서 1,245kg의 수량성을 보였으며 백립중은 8.6gr∼44.4gr의 범위에서 평균 23.0gr이였다. 성숙기는 평균 144.7일로써 대부분의 계통이 만숙성이였고 초장 및 주당협수의 변이폭은 비교적 컸다. 2. 단백질함량은 평균 42.83%이고 40.7%∼44.2%, 지방함량은 평균 17.46%로서 전체계통의 70%가 16.5%∼19.0% 범위에 속해 있어 저지방성임을 나타내었다. 3. 유전분산은 수량과 초장 및 주당협수가 컸고 백립중 및 성숙기도 비교적 컸으나 단백질과 지방함량은 적은 유전분산을 보였다. 4. 백립중, 초장 및 주당협수의 유전력과 선발에 대한 기대치는 비교적 높았으며 성숙기의 유전력은 높았으나 선발효율은 낮았는데 그 원인은 재래종 집단의 표현형분산이 적은데 있다고 할 수 있다.

人爲突然變異 利用에 依한 小麥品種改良 Ⅰ. 小麥에 대한 γ 線과 EMS의 處理効果

Kun Hyuk Im(任建爀),Shin Han Kwon(權臣漢),Cheong Yeol Sohn(孫淸烈),Jong Sun Eun(殷鍾旋) 한국육종학회 1969 한국육종학회지 Vol.1 No.1

As basic research to select useful mutants, this experiment was conducted to investigate biological response in M₁seedlings of wheat varieties, Yongkwang and Jaekwang, treated with gamma ray and EMS. On dormant seeds, gamma ray treatment was performed at the dosage of 5, 10, 15, 20, 30, 40 and 50 kr, and EMS at the concentration of 0.05, 0.075, 0.10, 0.15, 0.20, 0.25 and 0.30 mole. No effect in germination rate was found in variety Yongkwang by gamma ray irradiation, while significant effect was observed in Jaekwang, although it was not in proportion to the dosage. In emergence rate, significant decrease was shown in both varieties with the gamma ray treatment. As the EMS concentration increased, significant reduction in germination and emergence rate was observed in both varieties. Germination speed was not influenced with the gamma ray treatment, whereas it was slowed with the increase in EMS concentration. In both varieties, seedling survival rate 45 days after sowing was not affected by either gamma ray or EMS treatment. The growth of young roots, seedlings and young leaves was gradually inhibited with the increase of gamma ray dose and EMS concentration. On the basis of the above results, 50 per cent growth reduction dosage or concentration was determined in this study, and it was found that radiosensitivities of the wheat was dependent on varieties and mutagens. 本 實驗은 小麥品種 永光과 再光에 gamma線과 EMS를 處理하여 有用變異體를 選拔하는 過程 中에 얻은 M₁幼植物體의 生物學的 反應을 調査한 것이다. (1) 發芽率에 對한 gamma線 處理效果는 永光에서는 없었으나 再光은 線量에 比例하지는 않으나 有意性이 있었고, 成苗率은 兩 品種 모두 有意한 減少를 보였다. 그리고 EMS處理效果는 發芽率과 成苗率이 兩 品種에서 濃度增加에 따라 모두 有意性있게 減少하였다. (2) 幼苗 生存率에 있어서는 gamma線과 EMS處理效果가 없었다. (3) 幼根, 幼苗 그리고 本葉의 生長은 gamma線과 EMS處理에 對한 障害가 處理量 增加에 따라 直線的으로 增加하였다. (4) 品種에 따라 mutagen에 對한 生物學的 反應이 相異할 뿐 아니라 同一品種 內에서도 mutagen 種類에 따라서 差異를 보이고 있다.

Variation of beta-amylase in Korean land races and wild soybeans

Kyung Sook Park(朴京淑),Shin Han Kwon(權臣漢) 한국육종학회 1993 한국육종학회지 Vol.25 No.2

A total 2,415 accession of soybeans(G. max) and 228 wild soybean(G. soja) were examined for β-amylase variation by polyacrylamide gel electrophoresis. The Amy3 1-1 was a most common phenotype in both G. max and G. soja. The frequency of the Amye 1 allele was found to higher in cultivar(0.7830±0.0059) than in wilds(0.6285±0.0285) of Korea. This data means more cultuvars in G. max are fixed for the Amy3 1 allele at the β-amylase locus. Amy3 1 and Amy3 2 alleles are evenly distributed in wild soybean of Korea. The Amy3 2 allele of wilds was found to be highest in japanese soybean(0.5833±0.0636) than in Korea(0.3175±0.0258) and Chinese soybeans(0.1579±0.0481) (p<0.001). Early maturity group contains Amy3 1-1 phenotype in higher frequency, while Amy3 2-2 phenotype appeared in higher frequency in late maturity group. A significant positive association was found between Amy3 2-2 phenotype and tawny pubescence color.