• Journal of Ginseng Research
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• 제7권2호
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• pp.133-147
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• 1983

This study was carried out to obtain the basic information for the development of new ginseng varieties. The two variants (violet-stem variant and yellow-berry variant) of Korean ginseng (Panax ginseng C.A. Meyer) and American ginseng (Panax quinquefolium L.) of one to four-year were used for this study. All of the characteristics, such as leaf length, leaf width, petiol length, number of leaves per plant, number of leaflets per plants, stem diameter, stem length, number of stems per plant, root length, primary root length, root diameter, root weight were determined and correlations among them were estimated. The results obtained were summarized as follows. 1. Leaf length, petiol length, number of leaves per plant, and number of leaflets per plant of Panax ginseng, violet-stem variant and yellow-berry variant, were larger than those of Panax quinquefolium at all of the plant ages, while leaf width was wider in Panax quinquefolium. 2. The length of stem of Panax quinquefolium was shorter than that of Panax ginseng, and the frequency of multi-stem plants at 4-year-old ginseng was larger in violet-stem variant than in Panax quinquefolium and yellow-berry variant. 3. In the characteristics of ginseng root, the primary root length of Panax ginseng, violet-stem variant and yellow-berry variant, were less than that of Panax quinquefolium, while root weight, root diameter, and umber of secondary root related to yield were larger in Panax ginseng. 4. The root weight per plant related to the yield had positive and highly significant correlations with stem diameter, leaf length, leaf length, leaf width, number of compound leaves and leaflets in Panax ginseng and Panax quinguefolium. 5. The root weight related to the wield of ginseng had been influenced to stem diameter, leaf length, and leaf width directly, and number of compound leaves and leaflets indirectly. 6. The number, total area and activity of stomate per mm2 of Panax quinquefolium were more, larger and stronger than those of Panax ginseng.

• 생명과학회지
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• 제14권2호
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• pp.339-344
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• 2004

콩에서 경장과 연관된 DNA 표지인자를 개발하여 품종육성에 활용함으로서 육종효율 증진에 기여하고자 수행하였다. 본 시험은 육성된 큰올콩과 신팔달콩의 RIL 계통 및 SSR marker를 이용하여 유전자지도를 작성하고, 이를 바탕으로 경장과 관련된 양적형질 유전자좌(QTt)를 탐색하였다. 시험재료로 이용된 큰올콩과 신팔달콩은 경장이 각각 30.57 cm와 49.75 cm로 매우 큰 차이를 보였다. 경장과 연관된 QTL은 개별마커들과의 분산분석 결과, 연관군 F, J, N 및 O에서 전체변이의 37.83%를 설명할 수 있는 4개의 QTL을 탐색하였다. 특히, 연관군 J와 O에서 각각 14.25%와 10.68%를 설명할 수 있는 주요 QTL을 확인하였다. 따라서 경장 관련 QTL중 연관군 J와 O에서 확인된 주요 QTL은 품종 육성과정에서 경장 관련 선발 마커로서 활용가치가 높은 것으로 판단된다.

• 한국자원식물학회지
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• 제1권1호
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• pp.1-7
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• 1988

This experiment were carried out to study the heritability, genotypic, pheno-typic and environmental correlation in four edible oil crops. Heritabilities of flowering date, maturing date, plant height and weight of 1, 000 grains in rape were high. A highly significant positive correlation was found between flowering date and maturing date, plant hight and ear length, number of pods per ear and flowering date, maturing date and plant hight, The number of seed per pod showed also significant positive correlation with flowering or maturing date as well as with the relationship between weight of 1, 000 grains and plant height or ear length inrapeseed, respectively. Heritabilities of maturing date, length of stem with eapsule and number of seed per capsule were high, in sesame. Genotypic correlation between plant height and length of stem with capsule, length of stem with capsule and number of capsule per plant, number of capsule per plant and weight of 1, 000 grains, weight of 1, 000 grains and yield were highy positive in sesame. Heritabilities of flowering date, length of main stem, weight of 100 grains and number of shells per square meter in peanut were high, There was positive genotypic correlation between length of main stem and yield, number of shells per quare meter and matured seed ratio, number of shells per square meter and yield, 100 grains weight and yield. On the other hand, a significant negative correlation appeared between flowering date and yield. Heritabilities of days to flowering, stem length, stem diameter and weight of 1, 000 grains in perila were high. There was positive genotypic correlation between stem length and stem diameter, number of pods per plant, stem weight etc, between number of internodes and number of pods per plant, stem weight, number of valid branches and number of pods plant as well, respectively. While, a significant negative correlation was observed between number of valid branches and weight of 1, 000 grains, between number of pods per plant and weight of 1, 000 grains.

• 농업과학연구
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• 제1권1호
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• pp.5-8
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• 1974

인삼(人蔘)의 육종(育種)을 위(爲)한 몇가지 기초정보(基礎情報)를 얻기 위(爲)하여 국내(國內) 육성계통(育成系統) 16계통(系統)을 대상(對象)으로 하여 조사(調査) 분석(分析)하였던 바 그 결과(結果)를 요약(要約)하면 다음과 같다. 1. 인삼(人蔘)의 각 주요(主要) 양적(量的) 형질중(形質中) 경장(莖長)이(0.7050) 가장 높은 유전력(遺傳力)을 보였고 반면 엽장(葉長)의 유전력(遺傳力)이 (0.5674) 가장 낮았다. 2. 엽장(葉長)과 경직경간(莖直徑間)의 유전형(遺傳型) 상관(相關)이 (0.9844) 가장 높았고, 엽장(葉長)과 경장간(莖長間)의 유전형(遺傳型) 상관(相關)이 (0.8649) 가장 낮았으나 표현형(表現型) 상관(相關)에 있어서는 경장(莖長)과 경직경간(莖直徑間)이 (0.8788) 가장 높았으며 경장(莖長)과 경직경간(莖直徑間)이 (0.7950) 가장 낮았다. 3. 각 형질간(形質間)의 공유전력은 경장(莖長)과 경직경간(莖直徑間)이 가장 높았으며 엽장(葉長)과 경장간(莖長間)이 가장 낮은 값을 나타내었다. 4. 재식위치(栽植位置)에 따르는 각 형질(形質)의 변이(變異) 정도(程度)는 경장(莖長)이 가장 컸던 반면 경직경(莖直徑)에서 가장 적은 경향(傾向)이 있다.

• Journal of Ginseng Research
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• 제9권1호
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• pp.9-14
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• 1985

The aerial parts, stem diameter, stem length, Petiole length, leaf length and leaf width were investigated to estimate coefficient of variability in ginseng at 2 to 4 years grown under the conventional and improved shadings. C.V values of characters such as stem length, petiole length, leaf length and leaf width were decreased with increasing the plant age, while that of steam diameter was increased. C.V. values of aerial part characters were higher in conventional shading than in improved shading, and the variance of c.v. was not significant when above 20 plants were investigated.

• 한국작물학회지
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• 제24권3호
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• pp.81-84
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• 1979

인삼변이계통의 선발에 필요한 기초자료를 얻고저 자경종, 황숙종, 미국종의 일년생에 대하여 여러 가지 농경형질의 변이를 조사하였던 바 그 결과를 요약하면 다음과 같다. 1. Panax quinquefolium이 Panax ginseng에 비하여 모든 형질의 변이가 큰 경향이었다. 2. Panax ginseng에 있어서는 자경종이 황숙종보다 형질변이가 크게 나타났다. 3. Panax ginseng, Panax quinquefolium 공히 경장, 엽장, 근장 등의 형질은 변이가 큰 반면에 경직경, 근직경 등의 형질은 비교적 적게 변화하였다.

• 한국작물학회지
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• 제33권1호
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• pp.81-86
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• 1988

왕골 육종을 위한 형질상호간의 유전관계를 조기에 추정하고 효율적인 선발을 위한 기초자료를 얻고자 국내수집종 64품종을 공시하여 유전력, 표현형상관, 유전상관, 환경상관을 조사한 결과를 요약하면 다음과 같다. 1. 7개 형질에 대한 유전력 중 대부분의 형질에서는 높았으나 건피수량에서 만은 다소 낮게 평가되었다. 2. 형질상호간의 상관관계는 경장은 건수중과 건피수량에서, 경의 직경 역시 건수중과 건피수량에서 가장 높은 유의차로 정의 상관을 보였다. 3. 수량과 타형질과의 상관이 가장 높았든 형질은 경장, 경의 직경, 건수중이었으며 경로계수의 분석결과도 이들 형질의 직접효과가 가장 높았다.

• BMB Reports
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• 제50권3호
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• pp.138-143
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• 2017

Ovariectomy-induced bone loss is related to an increased deposition of osteoclasts on bone surfaces. We reported that the 36-amino-acid-long neuropeptide Y (NPY) could mobilize hematopoietic stem/progenitor cells (HSPCs) from the bone marrow to the peripheral blood by regulating HSPC maintenance factors and that mobilization of HSPCs ameliorated low bone density in an ovariectomy-induced osteoporosis mouse model by reducing the number of osteoclasts. Here, we demonstrated that new NPY peptides, recombined from the cleavage of the full-length NPY, showed better functionality for HSPC mobilization than the full-length peptide. These recombinant peptides mediated HSPC mobilization with greater efficiency by decreasing HSPC maintenance factors. Furthermore, treatment with these peptides reduced the number of osteoclasts and relieved ovariectomy-induced bone loss in mice more effectively than treatment with full-length NPY. Therefore, these results suggest that peptides recombined from full-length NPY can be used to treat osteoporosis.

• 한국작물학회지
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• 제25권3호
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• pp.63-67
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• 1980

인삼의 재래종에 대해서 유용형질과 관계가 있는 가시 Marker gene을 탐색하고, 선발을 용역하게 할수 있는 육종의 기초자료를 얻고저 년생별 각종 농경형질간의 상관관계를 조사하였던 바 그 결과를 요약하면 다음과 같다. 1. 형질상호간의 상관관계는 년생에 따라 다소 차이가 있었으나 경직경, 엽중, 경중은 각년생 공히 거의 모든 형질과 고도의 유의성이 있는 정(+) 상관을 보였다. 2. 각년생차에 관계없이 수량형질인 근중과 상관이 높았던 지상부형질은 경직경, 엽중, 엽폭, 장엽수, 소엽수, 엽중, 경중이었으며, 이들은 모두 정(+)상관을 보였다. 3. 따라서 경직경이 굵고, 엽면적이 넓고, 엽수가 많은 것이 다수성일 것으로 사료됨으로 경직경과 엽면적 및 엽수를 표식형질로 활용, 선발하는 것이 효과적일 것으로 생각된다.

• 한국환경복원기술학회지
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• 제26권5호
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• pp.47-56
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• 2023

The Quercus variabilis and Quercus dentata, which are said to be relatively drought tolerant among the important genus Quercus that represent deciduous broad-leaved forests in Korea. These two species are widely distributed worldwide in Korea, Japan and China (northern, central, western and eastern subtropical regions). This study compared the ecological niche breadth and overlap according to growth response in 4 soil moisture gradients for the two species and tried to reveal degree of competition and ecological niche characteristics. The ecological niche breadth was 0.977±0.020 for Q. variabilis and 0.979±0.014 for Q. dentata, the latter being slightly wider. And they were similar in 5 traits (stem length, leaf lamina length, leaf width length, stem weight, leaf petiole weight), Q. variabilis was more dominant in 4 traits (leaves number, stem diameter, leaf area, leaf petiole length), and Q. dentata was more dominant in 7 traits (root length, shoot length, plant weight, root weight, shoot weight, leaf weight, leaf petiole weight). The ecological niche overlap for soil moisture between the two species overlapped most in plant structure-related traits and least in photosynthetic organ-related traits such as petiole length. As a result of principal component analysis, degree of competition between the two species for soil moisture was more severe when the soil moisture condition was low than high. Among the measured traits that affect the two-dimensional distribution, 8 traits (Leaves number, Shoot length, Stem length, Plant weight, Root weight, Shoot weight, Stem weight, Leaves weight) were correlated with the factor 1, and 2 traits (Leaf width length, Leaf petiole weight) were correlated with the factor 2 (r>0.5). These results show that the ecological response of the two species to soil moisture is not a few traits involved, but several traits are involved simultaneously.