廣州 地域 잣나무 次代檢定林 15年生의 樹高 및 直徑 生長의 變異와 遺傳力 및 改良效果

全尙根 경희대학교 부설 식량자원개발연구소 1995 硏究論文集 Vol.16 No.-

This study was carried out to investigate the variation and heritability for tree height and diameter growth of 15-year-old progenies of Korean white pine in Kwang-Ju. The results can be summarized as follows: 1. Family, block, and family × block interaction were significant sources of variation for tree height and diameter growth. 2. Average values were 462.81±2.48㎝ in height and 89.40±0.63㎜ in diameter all over the 20 families. 3. No. 20 family showed excellent growth of 539.09㎝ in mean height, 103.7㎜ in mean diameter, respectively. 4. Individual-tree and family heritabilities were estimated 0.48 and 0.73 for height growth, and 0.37 and 0.68 for diameter growth, respectively. 5. When the top of 10% of individuals or families were selected, the expected genetic gains for tree height and diameter were higher in the combined selection than in another selection method.

잣나무의 遺傳力에 關한 硏究(Ⅱ) : 風媒次代 2-1 苗의 葉長 및 鋸齒數의 變異와 遺傳力 Variation and heritability of leaf length and number of serration in 3-year-old seedlings

全尙根,申萬鏞 경희대학교 부설 식량자원개발연구소 1985 硏究論文集 Vol.6 No.-

Variation and heritability of leaf length and number of serration were investigated for 3-year-old seedlings from 75 mother trees in Korean white pine (Pinus koraiensis S. et Z.) The range of leaf length was from 2.1㎝ to 12.8㎝ and 7.37±0.18㎝ in average. Number of serration was ranged from 6.7 to 20.7 and the average was 12.91±0.50. Significant differences among families for the above two traits were recognized. Estimates of single tree and family heritability by variance analysis were h^(2)_(I)=0.15 and h^(2)_(F)=0.21 for leaf length, and h^(2)_(I)=0.38 and h^(2)_(F)=0.55 for number of serration respectively.

잣나무에 있어서 結實量이 直徑生長에 미치는 影響

全尙根,金英彩,鄭炫培 경희대학교 부설 식량자원개발연구소 1981 硏究論文集 Vol.2 No.-

This study was carried out to know the effect of cone production on diameter increment in Pinus koraiensis. For the cone production per tree, the number of one year-old immature cone and 2 year-old mature cone and the latter's weight were investigated, and for the diameter increment, width of annual ring and it's relative value to the radius were investigated for the 28 individuals of 45 year-old tree over a period of 4 years. And then the correlation between cone production and diameter increment were investigated. The results obtained are as follows: 1. A significant correlation between the number of immature cone (one year-old cone) and the width of annual ring was not recognizable. 2. A negative correlation between the number of mature cone and the width of annual ring was found significantly. 3. A large quantity of the mature cone production decreased not only the diameter increment in the year, but also effected the following year increment.

잣나무 풍매차대검정림의 가계별·지역별 생장과 수분생리 특성에 관한 연구

전상근,정동준,장용석 경희대학교 생명자원과학연구원 1999 硏究論文集 Vol.20 No.-

경기도 가평지역과 충청북도 영동지역에 조림된 동일한 모수를 가진 동일한 25개가계의 차대검정림에 대한 생장과 수분생리와의 관계를 살펴보면, 두 지역에서 생장이 가장 우수한 20번가계는 가평지역의 생장이 영동지역보다 ㏊당 약 80.92㎥ 정도 많은 영양생장을 보였으며, 생장이 가장 불량한 3번가계에서도 가평지역에서 ㏊당 약 27.99㎥ 많은 생장을 보였다. 또한 초기 원형질분리점(π_0)에서는 20번가계, 3번가계 모두 영동지역이 가평지역보다 낮은 Water Potential을 나타내고 있는데, 이것은 동일한 유전력을 지닌 가계에서도 조림지역의 환경에 따라 Water Potential의 차이가 생기며, 이에 따라 생장에도 차이가 나타나는 것으로 사료된다. 즉 수분조건이 양호한 가평지역에서는 그 만큼 수분 스트레스를 적게 받아 생장도 양호하게 나타났다고 할 수 있다. 앞으로 수분조건에 큰 영향을 주는 인자인 토양에 대한 연구가 함께 이루어져 잣나무 적지적수 판단에 기초자료가 될 수 있을 것으로 생각된다. This study was conducted to reveal the characteristics of the growth by locality for Korean White Pine planted in Kapyung Kyunggi-Do and Youngdong, Choongchunbuk-Do. The effects of water potential on the growth were also analyzed. For this, local site quality was first evaluated and several stand variables such as number of trees survived, mean DBH, mean height, basal area per hectare, and volume per hectare by stand age were measured and summarized for each locality. Family No. 20 showed excellent growth in two sites and at Kapyung a more volume about 80.92m^(3)/㏊ than at Youngdong Family No. 3 showed poor growth and at Kapyung a more volume about 27.99m^(3)/㏊. Also at incipient plasmolysis (π_(0)) showed families No. 20 and No. 3 at Kapyung a lower water potential that at Youngdong. In the family which has same heritability, the growth is considered to be different because of different water potential by local climatic conditions. From this in Kapyung site which has good moisture condition and power water stress, the growth of white pine showed good.

한국판 CES-D 개정 연구 : Ⅰ

전겸구,권기덕,김상기 大邱大學校 社會科學硏究所 1999 社會科學硏究 Vol.6 No.1

본 연구에서는 국내에서 세 가지의 한국판 CES-D(Center for Epidemiologic Studies Depression Scale, Radloff, 1977)가 사용되고 있다는 점에 주목하여 이 세 가지 척도에 포함된 문항들 가운데 가장 좋은 문항으로 구성된 개선된 척도를 개발하고자 시도하였다. 이 목적을 위하여 2개의 독립된 연구를 수행하였다. 연구 1에서는 세 가지 척도에서 가장 적절하다고 판단되는 30문항을 선발한 후, 2개의 집단(대학생 집단, 성인 집단)에게 2개의 서로 다른 지시문과 2개의 서로 다른 순서에 의하여 질문지를 실시하였다. 이렇게 다양한 집단, 지시문, 및 순서에 의하여 9개의 독립된 분석을 실시한 후, 가장 적절한 20문항을 선발하였다. 연구 2에서는 연구 1에서 선발한 20문항으로 구성친 개정된 한국판 CES-D의 신뢰도와 티당도를 검증하였다. 그 결과 개정판 CES-D의 내적 일치도가 .91로 나타나서 높은 신뢰도를 보여주었다. 하지만, 문항 4의 경우 문항-전체 상관이 .20으로 나타나서 추후 연구에서 개선될 필요성을 암시하고 있었다. 또한 요인분석을 실시한 결과, 미국판과 같이 4요인 구조로 나타났다. 하지만, 각 요인에 속하는 문항의 내용이 미국판과 다소 다르게 나타났다. 따라서 추후 연구에서는 이와 같은 차이가 문화에 의한 차이인지 아니면 표집수의 크기에 의한 것인지를 탐색할 필요성을 암시하고 있었다. 그 밖에도 본 연구 결과의 제한점과 추후 연구에서의 시사점을 제안하였다.

염분에 대한 콩의 생리학적 반응지표 연구

천상욱,박종환 한국환경농학회 2003 한국환경농학회지 Vol.22 No.3

본 연구는 “광안콩”의 20일 묘를 공시하여 0~90 mM의 염분조건에서 콩의 생리학적 피해정도를 산정하고 내염성 품종선발과 육종계획에 요구되는 기초자료로 활용하고자 수행되었다. 엽록소의 함량은 정상적인 관수를 실시한 대조구에 비해 염분 처리에서 15~60% 감소하였고 농도증가에 따라 감소정도가 크게 나타났다. 염분 처리에 따른 광합성과 호흡량은 각각 28~48%와 16~34% 감소하였고 O₂생산 비율보다 O₂소모 비율이 높게 나타났다. 수분 potential은 정상 잎(-1.5MPa)에 비해 염분처리에서는 농도별로 -2.13에서 -2.69 MPa로 직선적으로 감소하였다. 개화기 염처리에서 대조구 13.3 μg의 약 17~22%로 감소한 11.8~10.4 μg이었으며 증산저항은 1.08~1.70 S/m로 증가하는 경향이었다. 콩 잎의 수분증산 저항에 미치는 염분의 영향은 잎 내부의 기층저항이 가장 심한 차이를 보였고 무처리에서 45.9 S/m인 반면 염분처리에서는 53.5~56.6 S/m로 농도증가에 따라 증가하였으며 기공저항과 잎 경계면의 저항은 큰 차이를 보이지 않았다. 대부분의 무기물 함량은 뿌리보다 잎에서 축적량이 더 많게 나타났으나 Na^(+)만이 뿌리에 더 많이 축적되었고 N, P, K^(+), Ca²^(+) 및 Mg²^(+)는 무처리에 비해 오히려 그 축적량이 감소하였다. 염분처리에 따른 콩 잎의 유리 proline은 무처리(10.5 μg) 대비 1.8~4.2배(184~434 μg)로 염 농도가 증가함에 따라 축적량이 증가하는 경향이었다. Nitrate reductase의 활성은 염 농도가 증가함에 따라 증가하였으나 농도가 90 mM 염분 처리에서의 증가폭은 다소 둔화되는 경향이었다. 한편 peroxidase 활성 역시 염분농도가 증가함에 따라 증가하는 것으로 나타났다. The mechanism imparting salt tolerance to crop plants remains still unsolved, although soybean has been classified as a susceptible plant to NaCl. To determine optimum parameters on physiological resp onses for improving sensitivity of salinity in breeding program, soybean (Glycine max Merr., cv. "Gwan- gan") plants were grown in a greenhouse, treated 20 days after emergence for 7 days with NaCl at 0, 30, 60, and 90 mM corresponding to electric conductivity of 1.2, 4.4, 7.3, and 10.4 dS/m, respectively, and assessed 30 days after treatment. Chlorophyll contents were significantly decreased by NaCl (0.4-1.0 ㎎/g) compared to control (1.2 ㎎/g. Photosynthesis rate by NaCl treatment at 0-90 mM at flowering stage was ranged from 5.0 (control) to 9.6 μ㏖/㎡/s. Oxygen for respiration was consumed from 5.4 to 9.7 μ㏖/㎡/s so that the ratio of O₂(evo1ution:consumption) was increased with the increase of NaCl, indicating that O₂ consumption seems to go beyond O₂ evolution. Water potential of leaf at vegetative stage Ⅱ was ranged from -0.6 to -1.8 MPa and the highest level was observed at mid-day. Water potential by salt stress was decreased with range of -2.1-2.7 MPa compared to control. Transpiration was decreased from 17% to 20% by NaCl stress. Water vapor diffusing resistance of intercellular air space was affected significantly, increastng up to 16-24% corn pared to control by NaCl treatment, Salt-treated soybean tended to accumulate Na^(+), specially in root, with reduced absorption of N, P, K^(+), Ca^(2+), and Mg^(2+) contents. Free proline content of soybean leaf as affected by different NaCl concentrations was increased 4.2 times (184-434 ㎍/g) more than control. NaCl also increased activities of nitrate reductase and peroxidase by 28∼161% and 3-22% respectively. The results show that physiological characteristics of soybean plants during assay were useful as the best parameters of salt stress or salt tolerance test to improve sensitivity in screening and breeding program among cultivars or germplasms.

加平地域 잣나무 次代檢定林 16年生의 樹高·根元 및 胸高直徑 生長의 變異와 相關

全尙根 慶熙大學校 1996 論文集 Vol.25 No.-

For the investigation on the variation and correlation in tree height, root-collar diameter (RCD) and diameter at breast height(DBH), twenty Korean white pine(Pinus koraiensis)families aged 16 were tested in Kapyung site. Family, block, and family×block interaction were significant sources of variances in height, RCD and DBH growth of progenies. Average height, RCD and DBH in the 20 families were 552.08±2.05㎝, 120.69±0.80㎜ and 87.02±0.59㎜, respectively. Number 20 family showed excellent growth of 640.58±9.98㎝ in mean height, 144.65±3.61㎜ in mean RCD, and 106.05±2.56㎜ in mean DBH, respectively. Highly significant correlationships were recognized between height and RCD, height and DBH, and RCD and DBH.

永同 地域 잣나무 風媒 次代 15年生의 樹高 및 直徑生長의 變異와 遺傳力 및 改良效果

全尙根,陳鉉五 慶熙大學校 1995 論文集 Vol.24 No.-

Twenty Korean white pine(Pinus koraiensis) families were tested in Youngdong site. Family, Block, and Family×Block interaction were significant sources of variance for height and diameter growth of progenies. The average height and diameter were 315.79m, 63.3mm, respectively. Heritability estimates of height growth were higher than those of diameter growth. Estimates of individual and family heritability were 0.30, 0.59 in height growth, and 0.23, 0.56 in diameter one, respectively. Correlatioship between height and diameter growth was significantly high(r=0.799). When the top 10% of individuals or families were selected, the expected genetic gains for tree height and diameter growth were higher in the combined selection and the mass selection than in another selection methods.

솔잎혹파리의 被害程度가 소나무의 結實에 미치는 影響[Ⅰ] : 被害率과 毬果 및 種子 生産量과의 關係 Relationship between Infestation Rate and Cone and Seed Production

全尙根,張仁和 慶熙大學校 1986 論文集 Vol.15 No.-

This study was conducted to investigate the effects of infestation rate by the pine gall midges on cone and seed production in Pinus densiflora Sieb. et Zucc. The rate of infestation, tree height, diameter (DBH), number of cone and number of seed per cone and tree for 73 damaged trees at five different stands were surveyed. A statistical analysis was done for the data obtained from the above to know the variances among stands and tree age classes as well as the relationship between infestation rate and cone and seed production. The results obtained from the above were summarized as follows; 1. The rate of infestation per damaged tree ranged from 0.39% to 67.54%. and was 30.14±2.09% in average, and coefficient of variance (C.V.) was 59.28%. The greatest rate of infestation appeared at the stand Ⅳ, and infestation rate increased with tree age. 2. The range of cone production per tree was 0.0-244.0 and it's average was 20.59±4.26 in number. The stand Ⅳ showed the most number of cone per tree, and cone production increased with tree age and infestation rate. The effects of stand, tree age and infestation rate on the cone production were 60.71%, 20.35% and 13.44% respectively in contribution rate. 3. Number of seed per tree ranged 0.0-5944.0, and was 407.51±99.54 in average, and C.V. was 69.15%. The stand Ⅳ showed the most number of seed per tree. The older tree was, the more seeds produced. The effects of infestation rate on the seed production per tree were 8.81% in contribution rate. 4. Average number of seed per cone of individual tree ranged from 0.0 to 49.0, and total average was 15.08±1.67, and C.V. was 71.70%. It varied with the stand and showed a tendency to increase with the rate of infestation. 5. The positive correlationship between the rate of infestation and cone production was recognized(r=0.9816^*) and the linear regression equation Y^=1.3161^*X-34.2340 was estimated. 6. The positive correlationship(r=0.9967^(**)) showed and the linear regression equation Y^=22.9688^(**)X-541.2225 was estimated between the rate of infestation and seed production.

잣나무 風媒次代 12年生을 樹高 및 植徑生長의 遺傳力과 改良效果

全尙根 慶熙大學校 1993 論文集 Vol.22 No.-

Twenty Korean white pine(Pinus koraiensis) families were tested in 3 different regions. Family, site, and family x site interaction were significant sources of variation for height and diameter growth of progenies. The average height and diameter were 293.6cm, 64.1mm in Kapyung site, 265.05cm, 53.9mm in Kwangju site, and 174.7cm, 33.8mm in Youngdong site, respectively. Heritability estimates of height growth were higher than those of diameter growth across the sites. Estimates of family and individual tree heritability were 0.89, 0.47 in height growth, and 0.82, 0.30 in diameter one, respectively. When the top 10% of individuals of famililies were selected, the expected genetic gains for tree height and diameter were higher in the combined selecction than in another selection method. Therefore, it would be desirable to use the combined selection method for the advanced generation in Korean white pine.