• Title/Summary/Keyword: Growth characters

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An Observation of a Concept of the Post Sedan in Korea (한국에서의 포스트 세단의 개념 고찰)

  • Koo, Sang
    • Archives of design research
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    • v.16 no.3
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    • pp.91-100
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    • 2003
  • The Korea's automotive industry have been achieved remarkable growth with many original models for over 28 years since the first original model Pony had developed. And most of the early models were licensed from the other country's makers. Now it is independent with our own technologies and designs, and the automobile is one of the major exporting products of Korea. In the early times the basic design concept of a passenger car didn't reflect the characteristics of the way of domestic life, but today's Korean developed cars have speciffic characters those are distinguished to others not only in the overall body shape but also in the package layout. And it is considered that the Korean cars would have different characteristics to the others in the future. These changes would come from the ways of life of the nations characteristics and they would influence to technologies of development. And the influence would be resulted as another type of sedan which has much differences to the current sedans. The main elements and the reasons for the 'post sedan' have been observed to specify the characters of the future Korean sedan in this research.

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Variation of Yield and Major Agronomic Characters under the Different Planting Densities of Sculellaria baicalensis (황금 재식밀도에 따른 수량 및 주요형질의 변이)

  • 이종일;안상득
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.33 no.1
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    • pp.1-4
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    • 1988
  • This study was invesigated to find out the optimum planting densities of Sculellaria baicalensis GEORGE about growth characters, yield components and yield at 6 planting densities by direct sowing culture. The results obtained are summarized as follows ; Studying the correlationship, the highly negative significances were found between planting densities and dry wights of root, leaves and stem ; on the other hand, the highly positive significances were found between planting densities and plant hight, stem diameter, respeitively. Plant height was long in dense planting, and short in spacious planting by direct sowing culture. Stem diameter was thick in spacious planting, and was thin in dense planting. Length and dry weight of root per plant were decreased in dense planting and were increased in spacious planting by direct sowing culture. Quality and yield of dry root weight were highest in optimum planting densities (30${\times}$10cm ; 33plants/m$^2$) by direct sowing culture.

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Morphological and Molecular Characterization of Thamnocalamus falconeri Hook f. ex. Munro

  • Tiwari, Chandrakant;Bakshi, Meena;Nautiyal, Subhash
    • Journal of Forest and Environmental Science
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    • v.31 no.3
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    • pp.214-224
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    • 2015
  • The economy of India and so also of many Asian countries depends on bamboos and their uses are not only in domestic items but also in rural housing and raw materials to several industries and germplasm characterization is an important link between the conservation and utilization of plant genetic resources. Classical taxonomic studies of the bamboos are based on floral morphology and growth habit, which can cause problems in identification due to erratic flowering coupled with different biotic agencies and environmental factors. Identification and genetic relationships among accessions of Thamnocalamus falconeri were investigated using morphology and random amplified polymorphic DNAs (RAPD) technique. Analysis started by using 51 vegetative characters and forty two 10-mer primers that allowed us to distinguish different genotypes hailing from different eco- zones of Garhwal Himalayas (India). The selected primers (12) were used for identification and for establishing a profiling system to estimate genetic diversity. A total of 79.33% polymorphism was estimated by using 12 selected primers. The genetic similar analysis was conducted based on binary digits i.e. presence (1) or absence (0) of bands, which revealed a wide range of variability among the species whereas genetic relatedness was quite high based on vegetative characters. Cluster analysis clearly showed two major clusters for both of the markers viz. morphology and RAPD belonging to 10 accessions of T. falconeri. Two major clusters were further divided into minor clusters. Cluster based on RAPD marker showed grouping of accessions of closed locality whereas analogy was reported for vegetative traits. The RAPD technique has the potential for use in species identification and genetic relationships studies of bamboo for breeding program.

Selection of Active Grow Hairy Root Lines in Ginseng (고생장 인삼 모상근의 선발)

  • 양덕춘;김용해;양덕조;민병훈;신성련;최광태
    • Korean Journal of Plant Tissue Culture
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    • v.25 no.6
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    • pp.525-530
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    • 1998
  • These studies were carried out to select the active grow hairy root lines induced from various ginseng(Panax ginseng C. A. Meyer) parts. Hairy roots were induced in root explants, stem and petiole in vitro by A. rhizogenes R1000 or A. rhizogenes $A_4$. These hairy roots could be grown on the phytohormone free medium, and PCR analysis of rol C and vir C gene fragments confirmed that hairy roots were transgenic tissues. We have selected 11 hairy root lines with active growing characters among 300 hairy root lines selected based on growth and morphological characteristics on 1/2MS solid media with 250 mg/L carbenicillin. Morphological characteristics of selected 11 hairy root lines were thickness and thiness of main roots, and many projection for lateral roots, active grow of lateral roots. Among selected 11 hair root lines prominent characteristics of hairy roots with active growing characters were thiness of main roots and active grow of lateral roots. But characteristics of low growing hairy roots were thickness of main roots and low grow of lateral roots. Finally we have selected actively growing hairy roots, KGHR-1, KGHR-5, KGHR-8 among 11 hairy root lines.

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Combining-Ability and Heterosis for Mutant Character of Quantitative Characters in Flue-Cured Tobacco Varieties(Nicotiana tabacum L) (황색종 연초에 있어서 변이체의 조합능력 및 Heterosis)

  • Jeong, Seok-Hun;Lee, Seung-Cheol;Kim, Heung-Bae
    • Journal of the Korean Society of Tobacco Science
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    • v.15 no.1
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    • pp.34-48
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    • 1993
  • This experiment were conducted to investigate heterosis and combining ability for several mutant characters by analyzing dialled crosses of flue-cured tobacco. In a dialled cross of 3 flue-cured varieties and the mutant line 83H -5, the heterosis was somewhat higher in Fl than in F2. For growth character, the heterosis was 0.28-6.03% in plant height, leaf number, leaf shape index and yield, and was 43.2% for bacterial wilt disease index. The mutant line 83H-5 showed significantly negative GCA effect for plant height, leaf width and bacterial wilt disease index in Fl and F2, leaf length in F2, and positive GCA effect for total alkaloids, total nitrogen in Fl and days to flower in F2, respectively. Specific combining ability(SCA) in 83H-5 x Hicks was significant in negative effect for leaf length(F2), number of leaves(F2), leaf shape(F1, F2), bacterial wilt(F2) and alkaloids(F1), and in 83H-5 x NC 2326 in positive effect for leaf length(F1, F2) and leaf width(F2), and for 83H-5 x NC 82 in positive effect for plant height(F1, F2) and leaf width(F2), and for 83H-5 x NC 82 in Positive effect for Plant height(F1, F2), leaf length(F2) and yield(F1, F2).

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The Effect of Animal Menure on the Soil Characters and Productivity of Grassland (가축분이 초지의 토양과 생산성에 미치는 영향)

  • Chung, Chan;Jeon, Byong-Tae
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.9 no.1
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    • pp.48-55
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    • 1989
  • This experiment was conducted to investigate the effect of animal stable manure on the dry matter yield, botanical composition, crude protein content rates, in vitro digestibility and soil characters with treatments, which were divided into cattle manure, swine manure and poultly excreta of 375 and 750kg/lOa, respectively. The results obtained were summarized as follows: 1. A comparison made on the grass yield for one year period following the termination of the experiment did not indicate any signification in the yield of dry matter difference between chemical fertilizer treatment and 750kg/10a of organic manure. 2. Botanical composition was not shown an increasing of weed or bare land in organic manure of 375 and 750kg/lOa application during the whole period of growth. 3. Crude protein content and in vitro digestibility were shown an increasing tendency according to the increase of organic manure application. 4. Crude protein yield in organic manure of 750kg/10a was not a large difference compared with chemical fertilizer treatment. 5. Soil composition of organic manure had higher than the soil composition of chemical fertilizer treatment, which was shown an increasing tendency according to the increase of organic manure. 6. Therefore, It was suggested that the effect of organic manure on dry matter yield, botanical composition was similar to chemical fertilizer treatment and soil composition of organic manure had higher organic matter, available phosphate, potassium and C.E.C than the soil composition of chemical fertilizer treatment.

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Effects of Row Width and Plant Spacing Within Row on yield in Scutellaria baicalensis GEORGE (재색밀도 차익 황금의 수량에 미치는 영향)

  • 신종섭;권병선
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2001.11b
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    • pp.43-48
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    • 2001
  • This study was investigated to find out the optimum planting densities of Scutellaria baicalensis GEORGE about growth characters, yield components and yield at 3 planting densities by direct sowing cultivated after barley Stem length was long In dense planting of 20$\times$10cm and short in spacious planting of 30$\times$10cm and 40$\times$10cm by direct sowing cultivated after barley. Stem diameter was thick in spacious planting of 30$\times$10cm and 40$\times$10cm and was thin in dense planting of 20$\times$cm by direct sewing cultivated after barley. Length and dry weight of root per plant were decreased in dense planting of 20$\times$10cm and were increased in spacious planting of 30$\times$10cm and 40$\times$10cm by direct sowing cultivated after barley. Yield of dry root was highest in optimum planting density(30$\times$10cm:33 plants/$m^2$) by direct sowing cultivated after barley. The correlation coefficient between number of planting plant and stem length showed highly positive correlation. These characters of stem diameter, number of branches, main root length and yield of dry root mentioned above showed negative correlations with planting plants.

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Effects of Row Width and Plant Spacing Within Row on Yield in Scutellaria baicalensis George (재식밀도 차이가 황금의 수량에 미치는 영향)

  • 권병선;신종섭;현규환;신정식
    • Korean Journal of Plant Resources
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    • v.15 no.1
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    • pp.77-80
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    • 2002
  • This study was investigated to find out the optimum planting densities of Scutellaria baicalensis George about growth characters, yield components and yield at 3 planting densities by direct sowing cultivated after barley. Stem length was long in dense planting of 20$\times$l0cm and short in spacious planting of 30$\times$l0cm and 40$\times$10cm by direct sowing cultivated after barley. Stem diameter was thick in spacious planting of 30$\times$10cm and 40$\times$10cm and was thin in dense planting of 20$\times$10cm by direct sowing cultivated after barley. Length and dry weight of root per plant were decreased in dense planting of 20$\times$ 10cm and were increased in spacious planting of 30$\times$10cm and 40$\times$10cm by direct sowing cultivated after barley. Yield of dry root was highest in optimum planting density(30$\times$10cm:33 plants/㎡) by direct sowing cultivated after barley. The correlation coefficient between number of planting plant and stem length showed highly positive correlation. These characters of stem diameter, number of branches, main root length and yield of dry root mentioned above showed negative correlations with planting plants.

Morphology of Silica bodies on Cyperaceae in Korea (한국산 사초과(Cyperaceae) 식물의 규소체(Silica body) 형태에 의한 분류)

  • Oh, Yong Cha
    • Korean Journal of Plant Taxonomy
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    • v.35 no.4
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    • pp.313-335
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    • 2005
  • Many plants take up soluble silica from the soil, and they deposit in plant tissues. Silica bodies are most commonly found in the leaf epidermis. Silica body is important factor in growth and development of plant. It help to maintain rigidity in stem and linear leaves, and its content may be correlated with resistance to fungal disease. In this study, several morphologically distinctive forms of silica bodies on Cyperaceae in Korea are recognized, which are eventually classified into two groups. Silica body type of first group (Rhynchospora, Fuirena, Scleria, Carex, Eriophorum) is A-type, which is conical in shape. Silica body type of second group (Cyperus, Scirpus, Eleocharis, Fimbristylis, Kyllinga, Bulbostylis, Lipocarpha) is B-type, which is conical in shape with numerous satellite body. These types are consistent enough to use as characters in taxonomic studies within genus. Silica body type may be associated with habitat: the species in dry region have A-type, whereas the species in wet region have B-type. These results suggested that shapes and presence or absence of silica body might be valuable to systematic analysis.

The Influence of Parenting Attitudes on Adolescents' School Adjustment : Mediating Effects of Ego Resilience and Care (부모양육태도가 청소년의 학교적응에 미치는 영향 : 자아탄력성과 배려심의 매개효과)

  • Noh, Miwha;Heo, MiJeong;Choi, Youn Shil
    • Journal of Families and Better Life
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    • v.33 no.2
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    • pp.119-134
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    • 2015
  • The purpose of the study is to explore how parenting attitudes, ego resilience, and care affects adolescents' adjustment to school so as to provide a necessary basic guideline needed to seek various intervention methods. To achieve this end, the study referred to the 2014 Annual Report of the Korean Children and Youth Panel Survey. By using both SPSS 19.0 and AMOS 19.0, the study yielded the following results. First, the study showed that parenting attitudes, ego resilience, care, and school adjustment all have a positive correlation. Second, by conducting path analysis in order to verify the mediating effect of ego resilience and care with regards to the relationship between parenting attitudes and school adjustment, the direct influence that parenting attitudes had on school adaptation was shown to be relevant. Third, adolescents' ego resilience and care have a partial mediating effect on the relationship between parenting attitudes and school adaptation. Therefore, together with intervention in actual school settings, assessing various factors that would aid the recovery of adolescents' characters and pursuing a positive reinforcement of character by finding protective factors would enable this study to be used as a basic guideline that would prevent adolescents' maladjustment to school and social deviance as well as aid the growth of their characters.