주요 산공재(散孔材)의 조직학적 연구 : Ⅰ. 5 수종의 목섬유 및 도관요소의 변이 Ⅰ. Variation of Wood Fiber and Vessel Elements of 5 Species

한철수 한국목재공학회 1984 목재공학 Vol.12 No.5

Wood fiber and vessel element of 5 diffuse-porous wood species, which are the major hardwoods in Korea with ring-porous wood, were studied and the results were summarized as follows; 1. Average Lengths of wood fibre were Carpinus laxiflora 1094 ± 225 ㎛, Diospyros kaki 947 161 ㎛, Prunus sargentii 808 191㎛, Acer mono 680 ± 154㎛, Salix babylonica 991 211㎛, respectively, and they were increased to the certain annual ring and then stabilized after that. 2. Average widths of wood fiber were Carpinus laxiflora 19 ± 3 ㎛, Diospyros kaki 19 3 ㎛, Prunus sargentii 14 4 ㎛, Acer monso 14 4 ㎛, Salix babylonica 21 5 ㎛, respectively, and they had no variation between species and annual rings. 3. Average lengths of vessel element were Carpinus laxiflora 616 133 ㎛, Diospyros kaki 207 90 ㎛, Prunus sargentii 415 73 ㎛, Acer mono 305 54 ㎛, Sa1ix babytonica 475 80 ㎛, respectively, and they had many variation between species but had no definite tendency with the annual rings. 4. Average diameters of vessel element were Carpinus laxiflora 71 2㎛, Diospyros kaki 63 4 ㎛, Prunus sagentii 64 2㎛. Acer mono 89 2 ㎛. Salix babylonica 122 2 ㎛, respectively, and they had many variation between species but had no difinite tendency with the annual rings.

百合나무의 基礎才質에 관한 硏究 : III.木材의 成分 分析에 대하여

韓哲洙 전북대학교 농업과학기술연구소 1982 農大論文集 Vol.13 No.-

The athor has analysed the chemical composition of fundamental properties of the tulip tree(Liriodendron tulipifera L.) and the results are summarized as follows : 1. Average ash contents were 0.3848%, showing a little diminishing tendency to the number of annual rings but disordinary trend with tree height. 2. Average cold water extractives were 1.81% and had no tendency to the number of annual rings or tree height. 3 Average hot water extractives were 2.78% and showed a slight increasing tendency to the number of annual rings but a little decreasing trend with tree height. 4. Average alkali extractives were 16.73% and had showed remarkably decreasing tendency to the number of annual rings but no constant trend with tree height. 5. Average alcohol extractives were 9.10% and had a little dimisishing tendency to the number of annual rings but no constant trend with tree height. 6. Average lignin contents were 23.44% and showed a slight increasing trend to the number of annual rings but no difference in contents between tree heights. 7. Average bolo-cellulose contents were 72.7% and showed a little decreasing trend to the number of annual rings but no difference in contents between tree heights.

담배 量的形質의 遺傳分析에 關한 硏究

韓喆洙 圓光大學校大學院 1985 學位論叢 Vol.14-2 No.-

The present studies were carried out to obtain some basic informations of the breeding of tobacco varieties. Genetically divergent 8 varieties, 3 flue-cured, 2 burley, and 3 sun-cured tobaccos, were used in half diallel cross. In order to analyze the heterosis, combining abilities, modes of inheritance, and correlations for some agronomic and chemical characters, 8 parents, 28 F₁and F₂generations were tested at Eumseong Experiment Station, Korea Ginseng and Tobacco Research Institute, in 1983 and 1984. The results obtained were summarized as follows : The percentages of heterosis for stem diameter, internode length, and total sugar content in F₁hybrid were 3.6%, 3.1%, and 10.6%, whereas those for days to flower, total alkaloid and leaves per plant were-6.3%, -6.9% and -5.0%, respectively. Similarly, those of them in F₂generation were much the same. Yield had significant positive genotypic correlations with plant height, days to flower and leaf length, but negative with internode length and total sugar content. It also had significant positive phenotypic correlations with plant height, days to flower, leaves per plant, leaf length, leaf width, and leaf shape index (Leaf length/leaf width). General (GCA) and specific combining abilities(SCA) for all characters except GCA of leaf length in F₂generation were significant. GCA/ SCA ratios were high with the following order ; days to flower, yield, plant height, and leaf shape index in F₁hybrid, and leaf length, yield, days to flower, and leaves per plant in F₂generation. Additive gene actions were shown in the inheritance of all characters except total nitrogen content. Partial dominances were detected in the inheritance of yield, leaves per plant, leaf length, and leaf shape index. Plant height, stem height, internode length, total alkaloid, total nitrogen, and total sugar contents seemed to be controlled by over dominance. Dominant genes were shown increasing effects in yield, plant height, stem diameter, internode length, leaf width, and total sugar content, but decreasing effects in the remainder of characters. The broad sense heritabilities of all characters were ranged from 79.8% to 99.6%, but the narrow sense heritabilities were ranged from 53.4 % to 81. 2 % in yield, days to flower, and from 15.5% to 49.3% in internode length, total alkaloid, total nitrogen, and total sugar contents. 담배品種育成의 基鍵資料를 얻기 위하여 遺傳的으로 多樣한 變異를 가진 8個 品種을 二面交配하여 얻은 28個 組合의 F₁ 및 F₂와 交配親을 1983~1984年 韓國人蔘煙草硏究所 陰城試驗場 團場에 同時 栽培하여 12個 形質에 對한 雜種强勢, 形質間相關, 組合能力 그리고 遺傳現象等을 調査하였던 바, 그 結果를 要約하면 다음과 같다. 1. 雜種彈勢는 F₁에서 幹經 3.6%, 葉閒距離 3.1%, 全糖 10.6%로서 正의 方向, 全알카로이드 -6.9%, 開花日數 -6.3%, 葉數 -5.0%로 負의 方向으로 높게 나타 났다. 2. 形質間의 遺傳相關에서 收量은 草長, 開花日數 및 葉長과 높은 正의 相關을 보였으나, 葉間距離 및 全糖과는 負의 相關을 보였고, 表現型相關에서 收量은 草長, 開花日數, 葉數, 葉長, 葉福 및 葉型指數와 正의 相關을 보였다. 3. 一般組合能力과 特定組合能力은 特定組合能力에서 F₂의 葉長에서만 有意性이 認定되지 않았고, 다른 모든 形質에서는 有意性이 認定되었다. 4. GCA/SCA 比는 F₁에서 開花日數, 收量, 草長, 葉型指數의 順으로, F₂에서는 葉長, 開花日數, 葉數, 收量의 順으로 높게 나타났다. 5. 全窒素를 除外한 모든 形質에서 相加的遺傳子의 效果가 認定되었으며 收量, 葉數, 葉長 및 葉型指數는 部分優性으로, 草長, 幹經, 葉間距離, 全알카로이드, 全窒素 및 全糖은 超優性으로 냐타났다. 6. 優性의 方向은 收量, 草長, 幹經, 葉間距離, 葉福 및 全糖은 正의 方向이었으나 開花 日數, 葉數, 葉長, 葉型指數, 全알카로이드 및 全窒素는 負의 方向이었다. 7. 廣義의 遺傳力은 79.8%~99.6%로 높은데 比하여 狹義의 遺傳力에서 收量, 開花日數, 葉數 및 葉長은 53.4~81.2%로 높았으나, 葉間距離, 全알카로이드, 全窒素 및 全階은 15.5%~49.3%로 낮았다.

百合나무의 基礎材質에 관한 硏究 : Ⅱ. 物理的 性質에 관하여 Liriodendron tulipifera L. Ⅱ

韓哲洙 全北大學校 1980 論文集 Vol.22 No.-

The tulip tree(Liriodendron tulipifera L.) which grows fast is possible to plant nation-wide in Korea. I investigated some physical properties of this tree for utilization as wood and the results are summerized as follows; 1. The moisture content in green condition was 73.35±6.91% and decreased gradually with the tree height. 2. Specific gravity was 0.84±0.05 in green condition, 0.66±0.04 in air seasoned condition and 0.55±0.04 in oven dried condition, respectively, and the bulk density was 490±26.6㎏/㎥. 3. Shrinkage from green to air seasoned condition was 3.88±0.87% in radial direction, 8.38±2.15% in tangential direction and 0.58±0.20% in longitudinal direction, respectively, and the ratio of radial to tangential was 2.14. 4. Shrinkage from green to oven dried condition was 5.76±0.81% in radial direction, 10.75±2.04% in tangential direction and 0.62±0.27% in longitudinal direction, respectively. 5. Unit shrinkage per moisture content of 1% was 0.09±0.03% in radial direction, 0.15±0.05% in tangential direction and 0.006±0.004% in longitudinal direction, respectively. 6. The moisture content, the specific gravity and shrinkages had no significance with orientation and the moisture content in green condition, the specific gravity and shrinkages were heightened in the bottom level of the trunk.

百合나무의 基礎材質에 관한 硏究 : I.解剖學籍 性質에 관하여

韓哲洙 전북대학교 농업과학기술연구소 1980 農大論文集 Vol.11 No.-

The tulip tree (Liriodendron tulipifra L) planted mostly for landscaping and roadside beauty grows fast. I investigated some anatomical properties of this tree to study for utilization of tulip tree as wood and the results are summerized as follows ; 1. The annual ring width is narrowed with the going up with the height class and the annual ring width of estern and southern side is wider than that of western and northern side. 2. The sap wood width is narrowed with the going up with the height class and the sap wood width of eastern and southern side is wider than that of western and northern side. 3. Average fiber length is 1244 ±234 micro meter and the average fiber width is 23.48±0.21 micro meter. 4. The fiber length going up with the height class has increased to a certain point but thereafter decreased from that point, and fiber width going up with the height class has not any trend of variation but the fiber width variation is inactive in comparison with the fiber length variation. 5. The fiber length going up with the annual ring class has gradually increased from pith to outer side of the trunk, and litter width going up with the annual ring class has not any trend of variation. 6. With the orientation, fiber length in southern and western side is longer than that in eastern and northern side but fiber width in southern and northern side is wider than that in eastern and western side.

버어리종, 황색종, 양건종, 담배의 유전분석에 관한 연구 I. $F_1$의 잡종강세, 상관 및 조합능력

한철수 한국연초학회 1985 한국연초학회지 Vol.7 No.2

The present studies were carried out to obtain some basic informations of the breeding of tobacco varieties. Genetically divergent 8 varieties, 3 flue-cured, 2 burley and 3 sun-cured tobaccos, were used in half diallel cross. In order to analyze the heterosis, combining abilities, modes of inheritance and correlations for some agronomic and chemical characters, 8 parents and 28 $F_1$ were tested. The results obtained were summarized as follows: The percentages of heterosis for stem diameter, internode length and total sugar content in $F_1$ hybrid were 3.6%, 3.1% and 10.6%, whereas these for days to flower, total alkaloids and leaves per plant were -6.3%, -6.9% and -5.0%, respectively. Yield had significant positive genotypic correlations with plant height, days to flower and leaf length, but negative with internode length and total sugar content. It also had significant prositive phenotypic correlations with plant height, days to flower, leaves per plant, leaf length, leaf width and leaf shape index (Leaf length/leaf width). General (GCA) and specific combining abilities (SCA) for all characters of $F_1$ hybrid were significant. The effects of GCA were positive on yield, plant height, stem diameter, leaves per plant and days to flower of Burley 21. And those were positive on yield, leaf shape index and plant height, but negative on leaves per plant and total nitrogen of Hicks. The effects of SCA for yield and leaves per plant were greater than those of others on the combinations of Coker 139 and Burley type, respectively.

주요산공재 (主要散孔材) 구성요소의 방사방향 변동에 관한 연구

한철수 한국목재공학회 1987 목재공학 Vol.15 No.2

Among the diffuse-porous woods which are dominant in Korea and used as construction materials due to their wood quality, ten species of six genus involving seven species of three genus in Betulaceae were studied on the radial variation of structural elements. The species studied were Betula platyphylla var. japonica, B. ermanii, B. davurica, B. costata, B. schmidtii, Carpinus laxiflora, Alnus japonica, Prunus sargentii, Acer mono and Diospyros kaki. Wood fiber, vessel elements and ray increased rapidly in size from pith to a certain annual ring. After then the radial variation in size of the main structural elements seemed to be divided into three types : levelled off curve pattern indicating constant size(type I), continuously increasing curve pattern showing ever increase in size (type II) and parabolic curve pattern showing the gradual decrease after the maximum (type III), but the variation types by structural elements were different even in the same species. Based on the results from this study, it appears to be reasonable to consider the stabilized age of wood fiber, vessel elements and ray rather than considering wood fiber length in distinguishing mature woods from juvenile woods.

담배(Nicotiana tabacum L. cv. Burley)의 細胞質的 雄性不稔系統을 利用한 F₁雜種에 關한 硏究

韓喆洙 圓光大學校大學院 1980 學位論叢 Vol.5 No.-

Male-sterile Burley21×Burley 37 and 20 other F₁hybrids using cytoplasmic male sterility were compared with their Parents and Burley 21 for several agronomic and chemical characteristics in replicated field trials. The male sterile lines were comparable to the male fertile lines for seven agronomic and chemical traits except plant height. Thus cytoplasmic male sterility can be sed in the production of hybrids seed without undesirable changes. F₁hybrid grew faster and had more leaves than their parents in the early stage of growth, but the differences in plant height, leaf number and leaf length were eliminated at topping stage, and F₁hybrids flowered earlier than their parents. Male sterile L8×Kentucky 12 and some other F₁hybrids using cytoplasmic. Male sterility were higher in yield and quality, respectively, than Burley 21, which is the only cultivated Burley tobacco in Korea. Out crossing rate of cytoplasmic male sterile lines with other pollen producing plants was some what high-about 25 Seed Capsules per male sterile plant. 버어리種의 細胞質的 雄性不稔系統을 利用하여 20個의 F₁雜種을 育成하여 그의 兩親파 特性을 比較調査한 結果를 要約하면 다음과 같다 1. 雄性不稔系統과 正常稔性 品種間에는 草長에서만 有意性이 認定되었을 뿐 其他 生育狀龍, 收量 및 品質은 對等하여 雄性不稔系統을 利用한 F₁雜種의 利用可能性을 보여주었다. 2. F₁雜種은 그 兩親보다 初期生育이 旺盛하여 移植後 32日째에는 草長, 葉數 및 葉長에서 育意性이 認定되었으나 生育後期로 갈수록 그 差이는 줄어들어 摘心前 生育에서는 大差가 없었고 開花期만 F₁雜種이 약간 빨랐다. 3. MS L8xkentucky10 等은 葉長福이 크고 MS Kentucky12 X kentuckylO 等은 葉數가 많고 良質이어서 收量 品質에서 現 載培品種안 Burley21을 능가하였다. 4. 雄性不稔系統의 自然交雜率은 50cm(花冠聞) 距離에서 平均 25期의 稔實로 相當히 높거 나타나 現行 栽植距離에서도 自然交雜에 의한 充分한 實用的인 採種이 可能함을 立證하였다.

소나무類 잎의 成分分析에 관한 硏究

韓哲洙 전북대학교 농업과학기술연구소 1979 農大論文集 Vol.10 No.-

This study f·as carried out in order to investigate chemical compositions in the needle of sixspecies of genus fr'f,or for the available basic data on the wood utiliBation.The materiais used ill this study were needle of fr'rrr frrrf'J'fort, 닐. frrfrrr,f, f. rrgrfr.f. rrrfr, J·. rr'gf'frrfr and f foroirrrf'f. The results u'ere bfiefl)'summerizrd as follolvs ;1 . Ash contents in needle was from 1, 41% to 3. 2?군. f. fcrrr',rrrr'』 has 1)i뜰h a?b contents butp. rr'91'rarfr low and other species immediate.2. In e x근ra c仁i t·e글, r of d wa to r e it ra ctives we re f r cm 22. C물즈 t o 24. f 7r , of 딘 詠tt r e보t 1'a r1)'efrom 24. Ifr to 28.07☞, 1% 鈴aO訓 extri)ctil·os from 42.3% to 65.3 and ?S"o E4011 extraFtil csfrom 25.7f☞ to 31. OBI, respectively. Generally speaking f. rrrfr, p rfurfr#gf'f'and f. frrrr'∫JoFrhadhighextrativecontents. .3. In sugar contentr, rEdi:led Eitfr tis fitm 0. Jtf,, to 0. BSf:, starch from 0.43ff to 0.80foand total sugar from 4.31% to 5. 16%, respectivEly, Generally speaking f. rrrfr had low conte-nts of sugar.4. Cold water extractives and sugar contents of f. ririrorfo were inlelmediate of f. rr'rr'frand rrrfr but ash contentr, hot fater extractive?, 1% NaO對 extractives and 95 Et訓」extractives of f. rr'gr'rrrfr werr lower than those components of f rr'gr'fr and J" rrrfr.

밤나무 一年技에 있어서 Tannin 含量의 時期的 變化에 대하여

韓哲洙 전북대학교 농업과학기술연구소 1974 農大論文集 Vol.5 No.-

This study was carried out in order to investigate seasonal variation in tannin contents of chestnut shoots by Lowental methods. Five varieties of Castanea crenata Sieb. et Zucc. (Akaju, Toyotama·wase, Rihei-guri, Gingrei, Yamato·wase) growing in Jeonju area were used as the experimental materials. The results are summerized as fellows : 1. Average tannin contents of chestnut shoots through the year were Gingrei 2.03%, Rihei·guril 1.93%, Akaju 1.76 % Yamato-wase 1.71% and Toyotama·wase 1.62 % respectively. 2. Tannin contents of chestnut shoots varied with the seasons but the variation in tannin contents between the varieties was not observed. 3. Tannin contents in every varieties of chestnut were decreased after fruiting and continuously increased from the early period of fruit-ripening, early September. 4. Chestnut shoots were unsuitable for tannin materials.