牡丹屬에 關한 硏究 第3報 主要形質의 遺傳力, 遺傳相關 그리고 經路係數

K.Y. CHANG(張權烈) 한국육종학회 1977 한국육종학회지 Vol.9 No.1

1. Heritability values of stem length, branch numbers per plant, internode length and fresh plant weight were higher than those of stem diameter, leaf numbers per branch and bud numbers per branch in tree peony(Paeonia suffruticosa Andrew). 2. Genotypic correlations between fresh plant weight and other characters indicated that plant weight was genetically correlated with branch numbers per plant, stem diameter, stem length, leaf numbers per branch and internode length, except bud numbers per branch, respectively. 3. Furthermore, it was also recognized that stem diameter, leaf numbers per branch and internode length of tree peony were affected to total weight of plants directly and indirectly by the path coefficient analysis method.

벼 縞葉枯病 耐病性品種 育成을 爲한 基礎的 硏究

K.Y. CHANG(張權烈),B.T. JUN(田炳泰) 한국육종학회 1978 한국육종학회지 Vol.10 No.2

Four by four diallel cross analysis was employed to investigate the nature of actions and distrubtion of genes involved in the inheritance of stripe virus disease in rice varieties. Milyang,No. 15, Tongil, Norin No.6 and Chukoku No. 46 were selected as the parental varieties, and these parents and their corresponding F’₂s were grown to count the infested degrees in percentage. The diallel analysis revealed that resistance to stripe virus disease was polygenetically inherited and exhibited partial dominance in all varieties used, except three varieties-Milyang No. 15, Tongil and Chukoku No. 46-Which are resistant varieties to stripe virus diseases. The results also showed that Norin No.6 was susceptable variety to stripe virus disease, and among three resistant varieties, Tongil variety is better variety than Milyang No.15 and Chukoko No. 46 in order to breed the resistant varieties to stripe virus disease.

大豆葉型에 關한 遺傳硏究 第2報 二面交雜에 依한 葉部位 各形質의 遺傳分析

K.Y. CHANG(張權烈),S.H. KIM(金䃃鉉) 한국육종학회 1978 한국육종학회지 Vol.10 No.2

Five soybean varieties and 10 F₂ hybrids by the diallel crosses among these varieties were used as the materials, and genetic studies were conducted to determine the relationships between parents and hybrids in leaf length, leaf width and leaf area, etc. Partial dominance was exhibited by length of main leaflets, length of laternal leaflets, width of main leaflets, width of laternal leaflets, area of main and laternal leaflets, etc. Differences among crosses in apparent degree of dominance existed for the characters, but all of the mean values in main leaflets were higher than those of laternal leaflets.

大豆의 複葉多葉性의 遺傳

K.Y. CHANG(張權烈),K.S. KANG(姜甲洙) 한국육종학회 1982 한국육종학회지 Vol.14 No.2

Eight soybean plants which have 4-7 leaflets in a compound leaf, so called abnormal multileaflet soybean plants, could be obtained from the 2nd generations in four different soybean crosses, in 1977 and 1979. These multileaflet soybeans were multiplicated and used as the material in 1979 and 1980. Abnormal multi-leaflet plants were appeared very low frequency, i.e. 1 to 7500 plants in several cross combinations of soybeans. All of the plants which have abnormal multileaflets, 4-7 leaflets, could be recognized as the same type which have shown the recessive genotype. Abnormal multileaflet types consist of eight leaflet types, which are 2+2(2 lateral leaflets and 2 terminal leaflets), 2+3, 3+1, 3+2, 3+3, 4+1, 4+2 and 4+3 leaflet types instead of normal type 2+1 (2 lateral leaflets and 1 terminal leaflet). Those abnormal multi-leaflets were mixed in 61% with normal leaflets on one plant in average. Leaflets which had 2 lateral leaflets appeared more than those had 3 and 4 lateral leaflets, terminal leaflets which had 1 and 2 leaflets appeared more than those had 2 and 3 leaflets, and frequency of appearing tendency were should be concluded as 2+1> 3+1>4+1>2+2>2+3>3+3>4+2>4+3 leaflet types, respectively.

大豆葉型에 關한 遺伝硏究 Ⅴ. 葉形質에 대한 組合能力의 檢定

K. Y. Chang(張權烈),D. C. Shin(金碩鉉)S. H. Kim(申斗澈) 한국육종학회 1982 한국육종학회지 Vol.14 No.1

Seven soybean varieties and 21 F₂ hybrids by the diallel crosses among these parent varieties were used as the materials, and combining ability test was conducted for many characters of leaf parts of soybeans. Partial dominance was exhibited by the petiole length of trifoliates and terminal leaflets, length of terminal and lateral leaflets, and width of terminal and lateral leaflets, etc. Differences among crosses in apparent degree of dominance existed for many of the characters. Mean square values of general combining ability were greater than those of specific combining ability for eight characters estimated, the effect of GCA were different among parents and characters, and the effects of SCA were also different among parents, characters and crosses.

二面交雜에 依한 大豆開花期의 遺傳分析

K. Y. Chang(張權烈) 한국육종학회 1975 한국육종학회지 Vol.7 No.2

Seven soybean varieties, from the extreme early to the extreme late variety, and F₁ plants of twenty-one crosses were used as the materials, F₁ plants showed the intermediate days to flowering between early flowering parent and late flowering parent, respectively. It was calculated that days to flowering of F₁ plants in each cross are as; F₁=P₁+0.62R, where in the case of P₁ denote the days to flowering of early flowering parent and R denote the range from the days to flowering of the late flowering parent (P₂) to the days to flowering of the early flowering parent (P₁) in each cross. It was also recognized that partial dominance was exhibited by flowering in all parents used as the crossing materials, and there were many dominant genes in the late flowering varieties than the early flowering varieties. The extreme late flowering variety, Tamanishiki, would lie have more dominant genes in flowering than the late flowering varieties, Ulsan or Tamaokiwase, and the extreme early flowering variety, Blackhawk, would be have more recessive genes in flowering than the late flowering varieties.

二面交雜에 依한 大豆의 世代別 量的形質의 遺傳分析

K. Y. CHANG(張權烈),J. C. PARK(朴重春) 한국육종학회 1977 한국육종학회지 Vol.9 No.3

Seven parents, F₁ and F₂ hybrids of twenty one crosses by the diallel crosses among these seven soybean varieties were used as the materials. and genetic studies were conducted by the randomized block design. Those plants were evaluated for 10 agronomic characters and all methods utilized were similar in detecting line giving unexpected performance in the F₁ and F₂ generations. In the both generations, partial dominance was exhibited on flowering, maturity, plant height, branch numbers and 100 grain weight etc., and over-dominance on pod numbers, but the other characters were differ from F₁ and F₂ generations. It is apparent that Hill, Kwang kyo, Kyung nam No. 2 appear to be contained most of the dominant genes for grain and pod numbers, since their cluster around the lower left end of the regression line. For five characters, flowering, flowering to maturity, maturity, plant height and 100 grain weight, the degree of dominance from √H₁/D was lesser than 1, indicating partial dominance, and lower value of H₁ than those of D was indicated that greater effect. Negative F values for flowering, stem diameter, branch numbers and 100 grain weight were indicated on excess of recessive alleles over dominant alleles. Apparent dominance asymmetry of positive and negative alleles were indicated, as H₂/4H₁ was less than 0.25 for all the characters except for plant height, stem diameters and 100 grain weight.

二面交雜에 의한 小豆의 몇가지 量的形質에 대한 遺傳分析 Ⅰ. 世代別 遺傳子 分布狀態의 差異

K. S. Han(韓鏡秀),K. Y. Chang(張權烈),J. H. Kim(金鎭馨) 한국육종학회 1984 한국육종학회지 Vol.16 No.3

A set of 36 crosses of F₁’s and F₂’s from nine Adzukibean varieties(Yeongdong Jeogdu, Gongju Baegdu, Gyeonggi Gaeguri, Wase Dairuyu No.1, Natsu Adzuki, Maruba No.1, Jeogdu, Nesumi Mochi and Hongcheon Jeogdu) were grown in the field for estimating gene distribution and degree of dominance. From a series of experiments conducted in 1981 to 1982, five agronomic characters (day to flowering, plant height, pod numbers per plant, 100-grain weight and grain weight per plant ) were observed. Partial dominance was observed in days to flowering, pod numbers per plant, 100-grain weight and grain weight per plant, and over dominance was found in plant height in F₁’s and F₂’s. But days to flowering in F₂’s, plant height in F₁’s and grain weight per plant in F₁’s were rather found to be inherited in completed dominance.

상엽수확고(桑葉收穫高) 측정(測定)에 관(關)한 연구(硏究) -각형질(各形質) 가중치(加重値)(Weight)에 의(依)한 수량(收量)의 측정(測定)-

한경수 ( K. S. Han ),장권열 ( K. Y Chang ),안정준 ( J. J. Ahn ) 한국잠사학회 1969 한국잠사곤충학회지 Vol.9 No.-

상엽의 수확고를 측정하기 위하여 상엽의 수량과 높음 상관관계가 있는 형질 중 상전에서 쉽게 측정할 수 있는 기조장(X1), 기조직경(X2), 엽수(X3), 엽면적(X4)의 4개 형질을 측정하여 이들 형질의 수량에 영향하는 가중치를 다중회분방정식에 의하여 산출하여 수량을 측정할 수 있도록 여러 가지 식을 유도하였다. 1. 기조장(X1)과 기조직경(X2)을 측정하여 수량을 측정하기 위하여는 개량서반에 있어서는 y1v1=-1.15760+0.068X1+165.756X2(g) 일지뢰에 있어서는 y1v2=-221.500+1.768X1+38.152X2(g) 노상에 있어서는 y1v2=-253.826-0.116X1+289.507X(g) 수원상 4호에 있어서는 y1v4=-157.559+1.063X1+106.088X2(g)의 식에 의해서 기조장(X1)과 기조직경(X2)의 측정치를 대입하면 수량을 견적할 수 있다. 2. 기조장(X1), 기조직경(X2), 엽수(X3)의 3개 형질을 측정하여 수량을 견적하는 데는 각품종별로 각각 y2v1=-118.478-0.665X1+184.445X2+2.346X3 y2v2=217.432+2.062X3+35.668X2-1.058X3 y2v3=-206.249-0.739X1+268.08X2+2.770X3 y2v4=-153.383+0.009X1+2.024X2+0.171X3의 식에 의하여 수량을 견적할 수 있다. 3. 기조장(X1), 기조직경(X2), 엽수(X3), 엽면적(X4)의 4개 형질을 측정하고 수량을 견적하기 위하여는 각품종별로 각각 y11v1=82.567-1.283X1+15.501X2+0.640X3+3.511X4 y11v2=136.411+0.311X1+1.921X2-0.217X3+0.214X4 y11v3=150.2Z7-0.139X1+11.788X2+0.143X3+0.381X4 y11v4=160.850+0.323X1+66.076X2-0.794X3+2.614X4 등의 식에 의하여 수량을 견적할 수 있다. Various formulae for estimation of leaf production in mulberry trees were investigated and obtained. Four varieties of mulberry trees were used as the materials, and four characters, namely branch length (X, 1), branch diameter (X, 2), leaf number per branch (X, 3), and leaf area per branch (X, 4), were studies. The formulae to eatimate the leaf yield of mulberry trees are as follows: 1. Y1v1=-115.760+0.068X1+165.756X2 Y1v2=-221.500+1.768X1+38.152X2 Y1v8=-253.826-0.116X1+289.507X2 Y1v4=-157.559+1.063X1+106.088X2 where Y1v1, Y1v2, Y1v3, Y1v4, are showed the estimated yield of the each variety, namely Gaeryang souban, Ilchirye, Nosang, and Suwon Sang No. 4, respectively. X2 and X2 denote the measured values of branch length and branch diameter, respectively. 2. Y2v1=-118.478-0.665X1+184.445X2+2.346X3 Y2v2=-217.432+2.062X1+35.668X2-1.058X3 Y2v3=-206.249-0.739X1+268.08X2+2.770X3 Y2v4=-153.383+0.009X1+2.024X2+0.171X3 where Y2v1, Y2v2, Y2v3, Y7v4, are the estimated yield of the each variety, namely Gaeryang. Souban, Ilchirye, Nosang, and Suwon Sang No. 4, respectively. X1, X2, X3, denote the measured values of each character, branch length, branch diameter and leaf number per branch, respectively. 3. Y11v1=82.567-1.283X1+15.501X2+0.640X3+3.511X4 Y11v2=136.411+0.311X1+1.921X2-0.217X3+0.214X4 Y113v=150.227-0.139X1+11.788X2+0.143X3+0.381X4 Y11v4=-160.850+0.323X1+66.076X2-0.794X3+2.614X4 where Y11v1, Y11v2, Y11v3, Y11v4, are the estimated yield values of four varieties, and X1, X2, X3, X4 denote the measured values of four characters, namely branch length, branch diameter, leaf number per branch and leaf area per branch, respectively. The estimation method of mulberry leaf yield by measurement of some characters, branch length, branch diameter, leaf number per branch and leaf area per branch, could be the better method to determine the leaf yield of mulberry trees without destroying the leaves and without weighting the leaves of mulberry trees than the other methods.

벼 葉稻熱病抵抗性의 遊傳分析

S.K. LEE(李壽寬),K.Y. CHANG(張權烈) 한국육종학회 1981 한국육종학회지 Vol.13 No.2

It was carried out the genetic study for the leaf blast resistance using the six rice varieties. In diallel cross analysis, the gene action for the resistance appeared that additive effects were more prevalent than dominance effects. The narrow and broad sence heritabilities for the resistance estimated in the F₂ generations were very high (above 0.8).