• 제목/요약/키워드: Quantitative characters

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The Combining Ability Analysis and Heterosis for some Quanitatives Traits in the Silkworm (Bombyx mori L.)

  • Moghaddam S. H. Hosseini;Etebari K.
    • International Journal of Industrial Entomology and Biomaterials
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    • 제10권2호
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    • pp.153-157
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    • 2005
  • Recently two breeding programs were carried out for isolation of new parental inbred lines in Iran. This study was undertaken in order to estimate the combining ability effects and heterosis of these lines. For this purpose an $8\times8$ diallel cross analysis including eight inbred lines of silkworm with four lines from each program were studied for their five quantitative traits. The results indicated that reciprocal effects appeared insignificant for most of traits. Japanese lines of 111 and 113 were best combiners for shell weight, cocoon weight and shell percentage traits. With respect to pupation rate, Chinese line 110 was the best and according to general combining ability (GCA) and specific combining ability (SCA) variances, it is superior in specific combinations. Hybrid $109\times110$ showed better characters for both productive and viability traits. Hybrids with high heterosis had high SCA too.

Phenolic Acid Changes in Mycelia of Sclerotium rolfsii After Garlic and Onion Supplementation in a Broth Medium

  • Pandey, M.K.;Singh, D.P.;Singh, U.P.
    • Mycobiology
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    • 제33권3호
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    • pp.137-141
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    • 2005
  • High performance liquid chromatographic (HPLC) analysis of mycelia of Sclerotium rolfsii grown in broth medium supplemented with garlic (Allium sativum) and onion (Allium cepa) was carried out to estimate qualitative and quantitative changes in phenolic acids. Several phenolic acids, such as gallic, chlorogenic; ferulic, o-coumaric and cinnamic acids were detected in varied amounts in mycelia grown on such media as compared to control. Phenolic acids represents a wide range of secondary metabolite found in the cells of plants and microbes including fungi. The growth characters of S. rolfsii in various supplements also varied from thin and transparent to thick and opaque.

Effect of Certain Insecticides in Controlling Pesudodendrothrips mori in Mulberry

  • Misra, Sunil;Reddy, C.Rajagopal;Sivaprasad, V.;Reddy, K.Dharma;Chandrashekhariah
    • International Journal of Industrial Entomology and Biomaterials
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    • 제7권1호
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    • pp.83-86
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    • 2003
  • Mulberry plantations are prone to several kinds of insect pests including the thrips, Pesudodendrothrips mori. The thrips infestation affects the qualitative and quantitative characters of mulberry leaf, which in turn affects the silkworm cocoon crop. In the present study, four commercial insecticides viz., Rogor, Quinalphos, Confidor and Methyl parathion were tested for their efficacy in the control of P. mori thrips. These insecticides were observed to kill 68-80% within 24 hrs in vivo and 100% after 12 hrs post-treatment in vitro. Confidor (0.05%) and Quinalphos (0.2%) were most effective in controlling the thrips incidence. The insecticide-sprayed mulberry leaves did not show any adverse effect on the rearing of silkworms.

울릉도 지역 주부들의 전통음식과 금기식품에 대한 인식 (Perception of Traditional and Prohibitive Foods in Ul-lung Do Area)

  • 박영선
    • 한국식품조리과학회지
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    • 제10권2호
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    • pp.151-160
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    • 1994
  • The objectives of this study were to investigate the kinds and way of using traditional foods for Korean traditional events, and to identify prohibitive foods for fetus, lactating mothers, fisherman, and for sick people taking the cultural aspects and the belief of housewives in island into . account. The data for this study were collected in a survey conducted in June of 1992 in Ul-lung Do area which is one of the typical islands and has essential characters of island in Korea. The questionnaire was specifically designed to find traditional and prohibitive foods in that area. Data analysis consisted of first compiling descriptive statistics and frequencies with respect to the quantitative\ulcornerand qualitative data solicited from respondents, and X2 analysis was empolyed to assess relationship among variables. The findings of this study provide some implications regarding the impact of cultures in understanding the perceptions to traditional as well as prohibitive foods.

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Orient종 잎담배의 이면교잡에 의한 양적 형질의 유전연구 II. 분산분석과 유전자분포 상태 (The Analysis of Inheritance of Quantitative characters with Oriental Tobacco Varieties (Nicotiana tabacum L.) in Diallel Cross. II. Gene Distribution and Analysis of Variance for each character in $F_1$ Generation.)

  • 정석훈;황주광;손세호
    • 한국연초학회지
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    • 제4권1호
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    • pp.15-20
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    • 1982
  • This experiment was carried out to investigate the degrees and directions of dominance, and gene distributions by analysing diallel crosses of oriental varieties. The analysis of Wr-Vr indicated non-allelic gene interaction for days to (lowering and number of leaves. Five Plant characteristics showed different degrees of dominance : incomplete dominance for Plant height and leaf shape, over dominance for , wield and sugar, and complete dominance for nicotine. It was shown that additive genetic variance was predominant for plant height, leaf shape, and total sugar. More number of dominant genes were present in Kavala and canthi for Plant height; Basma, Samsun and Izmir for leaf shape ; and Basma and Samsun (or nicotine. Their directions of dominance were tall height, narrow leaves, and low nicotine, respectively.

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현장려잠품종을 중심으로 한 잡종효과에 대하여 (On the hybrid vigor of F$_1$ silkworm)

  • 백건제
    • 한국잠사곤충학회지
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    • 제10권
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    • pp.67-72
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    • 1969
  • In order to analyse the correlation between the parents and their hybrids in the silkworm, which were reared in spring, the author has surveyed the various quantitative characters which are significant in genetics, and the hybrid vigor rate. The duration of larvae life is shorter in F1 Value an in the mid parents value, cocoon size biffer, pupa rate, cocoon crop from ten thousand silkworms just molted in the fourth instar, total cocoon weight and cocoon layer weight increases in comparison with the mid parents value. Although cocoon layer ratio only shows increasing by 0.3% or so, it is too little to admit the effect. F1 value is nearly equal to parent value and there is no correlation between F1 hybrids value and their mid parents value.

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효율적인 애니메이션을 위한 모션 에디팅 방법의 계산량분석에 관한 연구 (Analysis on the Computational complexities of Motion Editing for Graphic Animation)

  • 이지홍;김인식;김성수
    • 제어로봇시스템학회논문지
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    • 제8권1호
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    • pp.28-36
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    • 2002
  • Regarding efficient development of computer graphic animations, lots of techniques for editing or transforming existing motion data have been developed. Basically, the motion transformation techniques follow optimization process. To make the animation be natural, almost all the techniques utilize kinematics and dynamics in constructing constraints for the optimization. Since the kinematic and dynamic structures of virtual characters to be animated are very complex, the most time-consuming part is known to the optimization process. In order to suggest some guide lines to engineers involved in the motion transformation, in this paper, we analyze the computational complexities for typical motion transformation in quantitative manner as well as the possibility for parallel computation.

황의 Sublimatographic Characters에 관한 연구 (Study on the Sublimatographic Characters of Sulfur)

  • 손진언;김주봉
    • Elastomers and Composites
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    • 제7권1호
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    • pp.53-58
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    • 1972
  • Sublimatographic study on the method of test for sulfur in the petroleum and rubber products was as following results: (1) The relation between the heating temperature$(t_h)$ and the vacuum condensing point(V.C.P.) of sulfur at different degree of vacuum appeared as Fig.4. The results were in good agreement with those expected from the $t_h-V.C.P$ curves of sublimatographic separation of sulfur. (2) The relation between the degree of vacuum and the V.C.P. at different heating temperature of sulfur appeared as follows; $$tv.c.p.=\alpha+{\beta}logP_{va}$$ (3) The V.C.P of sulfur could be physical property comparing with melting point and boiling point. (4) The relation between the V.C.P. and the quantity of sublimation of sulfur becomes quantitative as Fig.7.

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분기점 기반 트리 분석을 통한 소프트웨어 클러스터링 결과 비교 (Comparison of Software Clustering using Split Based Tree Analysis)

  • 엄재철;이찬근
    • 소프트웨어공학소사이어티 논문지
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    • 제25권3호
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    • pp.59-62
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    • 2012
  • 본 연구에서는 소프트웨어 아키텍처 복원을 위한 계층적 클러스터링(Clustering) 결과를 정량적으로 평가 할 수 있는 비교 메트릭(Metric)을 제시한다. 소프트웨어 클러스터링의 정량적 평가는 소프트웨어의 구조적 변화에 대한 이해를 돕는 척도를 제시하는 연구이다. 이를 위해 생물정보학에서 상호유전 형질 분석에 사용하는 분기점(Split) 개념을 소프트웨어 아키텍처 분석에 적용한다.

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