• Title/Summary/Keyword: Diallel

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Diallel Crosses Block Designs for Control versus Test Inbred Lines Comparisons

  • Son, Young-Nam;Choi, Kuey-Chung
    • Journal of the Korean Data and Information Science Society
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    • v.13 no.2
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    • pp.175-184
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    • 2002
  • In this paper, diallel crosses block designs for control versus test comparisons among the lines are proposed. These block designs are constructed by using partially balanced incomplete block designs with C-properties. Also, the efficiencies of the diallel crosses block designs obtained through this method are tabulated for number of lines 22 or less.

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Optimal Design for Complete Diallel Crosses

  • Park, Kuey-Chung;Son, Young-Nam
    • Communications for Statistical Applications and Methods
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    • v.8 no.3
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    • pp.677-683
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    • 2001
  • In this paper, optimal block designs for complete diallel crosses are proposed. These optimal block designs for estimating general combining abilities are constructed by using balanced incomplete block designs and nested balanced incomplete block designs. Also, the efficiency of the optimal block design obtained through this method is reported in table.

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Partial Diallel Cross Block Designs For GCA Effect

  • Choi, Kuey-Chung;Lee, Jung-Hwa
    • Communications for Statistical Applications and Methods
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    • v.11 no.1
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    • pp.169-179
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    • 2004
  • Partially balanced diallel cross designs with m-associate classes are defined and two general methods of construction are presented. Two-associate class designs based upon group divisible, triangular, and extended group divisible association schemes obtained using the general methods are also given. Tables of designs for p$\leq$24 are also provided.

Block Designs for Diallel Crosses with Different Group Characteristics

  • Kim, Seo-Young;Bae, Jong-Sung;Han, Wean-Sik
    • Communications for Statistical Applications and Methods
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    • v.9 no.1
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    • pp.53-61
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    • 2002
  • In this paper we proposed the method of the block designs for diallel crosses when inbred lines are divided into two groups. These block designs are derived by using kornecker product designs with two balanced incomplete block designs, and their efficiency factor evaluated. A table of diallel crosses for up to p$_1$$\leq$15 lines, p$_2$$\leq$15 lines in each set is also provided.

Diallel Crosses Block Designs for Control versus Test Inbred Lines Comparisons

  • Son, Young-Nam;Lee, Jung-Hwa;Lee, Seok-Woo
    • Proceedings of the Korean Statistical Society Conference
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    • 2002.05a
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    • pp.171-174
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    • 2002
  • In this paper, diallel crosses block designs for control versus test comparisons among the lines are proposed. These designs are constructed by using partially balanced incomplete block designs with C-properties. Also, the efficiencies of the diallel crosses block designs obtained through this method are tabulated for number of lines 24 or less.

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Block Designs For Comparisons Within Two Groups in Diallel Crosses

  • Park, Kuey-Chung;Son, Young-Nam
    • Proceedings of the Korean Reliability Society Conference
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    • 2002.06a
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    • pp.411-414
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    • 2002
  • A class of block designs for general combining ability comparisons within two groups of inbred lines in diallel crosses is given. Use is made of balanced block designs obtained by cyclically developing a single initial block.

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Complete diallel cross experiment for Symmetric BIB designs (대칭 균형된 불완비 블록계획을 이용한 완전이면교배 실험)

  • 배종성;김공순
    • The Korean Journal of Applied Statistics
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    • v.12 no.1
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    • pp.253-260
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    • 1999
  • 이어진 블록계획 중에서 대칭 균형된 불완비 블록계획(Symmetrical Balanced Incomplete Block Design : SBIBD)을 이용하여 n-ary를 블록 완전이면교배(Complete Diallel Cross : CDC)계획을 설계하였다. 처리 수와 반복 수가 고정된 경우, 이렇게 설계된 계획이 균형된 불완비 블록계획을 이용해서 설계한 계획들 중에서 가장 효율이 높은 계획임을 보인다.

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Optimal Designs of Complete Diallel Crosses

  • Park, Kuey-Chung
    • International Journal of Reliability and Applications
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    • v.2 no.2
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    • pp.131-135
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    • 2001
  • Two general methods of construction leading to several series of universally optimal block designs for complete diallel crosses are provided in this paper. A method of constructing variance balance designs is also given.

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Evaluation of the body weight and laying performance of diallel crossed Korean native chicken layers from hatch to 40 weeks of age

  • Jun Seon Hong;Myunghwan Yu;Elijah Ogola Oketch;Shan Randima Nawarathne;Doo Ho Lee;Minjun Kim;Jung Min Heo
    • Korean Journal of Agricultural Science
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    • v.49 no.4
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    • pp.1033-1040
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    • 2022
  • The current experiment was conducted to evaluate the effect of diallel crossbreeding on the body weight and laying performance of Korean native chicken from hatch to week 40. A total of 1,000 one-day-old chicks were allotted to 10 cages per crossbreeding treatment with 10 birds per cage on a random basis and then raised until 16 weeks and subsequently moved to layer battery cages and raised until 40 weeks. Ten crossbred treatments (YC, YD, YF, YK, CD, CF, CK, DF, DK, FK) that were obtained from the diallel crossbred of five pure lines were used in the current experiment. The body weight and mortality were measured biweekly from hatching to week 20 and every four weeks from week 20 to week 40. The number of eggs was measured daily. YC and YD crossbreeds showed a higher body weight (p < 0.05) and FK crossbreed showed a lower body weight (p < 0.05) during the whole xperimental period. The week 20 weight range was 1,501 to 1,729 g and the week 40 weight range was from 1,829 to 2,179 g. Earlier onset of egg-laying was noted in the YC and YD groups whereas late onset was observed for the DF and DK groups. YK reached its peak earliest at week 25 with 89.15% while the DK crossbreed attained its peak at week 36 with 89.69%. The YC and YD crossbreeds showed the improved body and egg-laying performance. Conclusively, there are variations in the body weight and laying performance of Korean native chickens with diallel crossing.

Block Designs for Comparisons within Two Groups of Inbred Lines in Diallel Crosses

  • Choi, Kuey-Chung;Lee, Jang-Jae;Oh, Ji-Ae
    • Proceedings of the Korean Statistical Society Conference
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    • 2002.05a
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    • pp.165-170
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    • 2002
  • Sometimes we have two groups of inbred lines and there are only interest in gca comparisons within group($p_{1}$) and group($p_{2}$) and not between two groups. For example, suppose there two Lab, each of the 2 Labs have obtained the best lines. For this purpose we now give a method of constructing block designs for diallel cross experiments and we will explain how to calculate efficiency. Then we show the efficiencies in the table.

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