쌀 胚乳의 Amylose含量에 미치는 Wx 因子의 Dosage 効果 1. Base Color의 Isogenic Line을 利用한 交配種子의 Amylose含量

M. H. Heu(許文會),S. Z. Park(朴淳直) 한국육종학회 1976 한국육종학회지 Vol.8 No.1

Isogenic lines for glutinous endosperm and base color in rice were used to obtain different endosperm genotypes, wxwxwx, wxwxWx, WxWxwx and WxWxWx. The base color was used as the marker gene to elliminate the selfed seeds. The amylose content of rice endosperm was significantly different among genotypes. The dosage effect of the Wx allele seemed to be additive in its action on the amylose content, though the amylose content is not directly proportional to the number of Wx dose. The effects of Wx allele to wx and H-Wx allele to L-Wx, the first one dose (xwxw Wx/L, wxwx Wx/H and WxWx/L Wx/H) is most significant and the effect of 2 doses(WxWx wx/L and WxWx wx/H) and 3 doses (WxWxWx/L and WxWxWx/H) were linearly increased.

水稻의 濃綠葉色과 Dripping Wet 形質의 連鎖分析

M. H. HEU(許文回),H. S. SUH(徐學洙) 한국육종학회 1976 한국육종학회지 Vol.8 No.1

A dripping wet character was found in some F₂ families of the cross Suwon224× Malagkit Sinaguing, where the parental varieties were all normal. This dripping wet line(wx139) was crossed to the genetic stock H106 which had dark green leaf color liguleless and narrow leaf character. The dripping wet character of wx139 and the dark green leaf color of H106 appeared to be controlled by a single recessive gene, drp and dg, respectively. Linkage relations were found between dg and drp, dg and lg (liguleless) and dg and nal (narrow leaf) with the recombination values of 8.6, 7.3 and 6. 0% respectively. These genes arranged in the order of nal-dg-lg-drp.

貧血患者의 統計的 觀察

金敬植,金成熙,許仁穆 서울대학교 1958 서울대학교 論文集 Vol.7 No.-

Statistic observation for anemia was made on 790 male and 517 female patients hospitalized in the Department of Internal Medicine, Seoul National University Hospital and examined hematologically, during the three year period from 1955 to 1957. 1) In the number of red blood cells, 585 patients among the male were anemic with less than 4.50 million RBCs, occupying 74.1% of all male patients, and 332 patients (42%) were between 3.75 million and 4.50 million, showing the highest frequency. Among the female, 324 patients showed less than 4 million RBCs, and thus 62.7% of them were anemic, 262 of them (50.6%) were between 3.50 million and 4.25 million and showed highest frequency. 2)In Hemoglobin value, 584 patients among male were less than 14gm/dl, thus showing that 73.9% of them were anemic, and between 11gm/dl and 14gm/dl showed highest frequency with 387(49%) patients. Among the female, 289 patients were less than 12gm/dl and thus 55.9% of them were anemic, and number of the cases were highest between 10-13gm/dl with 277(53.5%) cases. 3) Hematocrit value was examined on 724 male patients and 469 female patients, and in male highest proportion were from 35 to 44 with 377(52%) patients, and in female between from 31 to 38 with 245(52.2%) patients. 4) Among the 575 male and 280 female patients with anemia in view of hemoglobin value, the M.C.V. ere as follows: less than 83 83-93 more than 93 Male: 106(18.4%) 319(55.5%) 150(26.1%) Female: 66(23.6%) 146(52.1%) 68(24.3%) 5) The M. C. H. of the anemic 552 male and 280 female patients were as follows: M.C.H: less than 27 27 to 32 more than 32 Male: 76(13.8%) 380(68.8%) 96(17.4%) Female: 54(19.3%) 173(61.8%) 53(18.9%)

雄性不稔을 利用한 水답 雜種品種의 開發 : Ⅲ. ms-WA를 導入하여 育成한 雄性不稔系統들의 雜種强勢 Ⅲ. The yield heterosis of Korean bred male sterile lines which have ms-WA male sterility cytoplasm

허문회,조윤희,김홍열 서울大學校 農科大學 1985 서울대농학연구지 Vol.10 No.1

ms-WA에 由來하는 導入CGMS系統에 韓國育成系統을 數回 Backcross하여 CGMS를 置換한 不稔系統을 育成하고, 이들과 導入不稔系統에 대해 높은 稔性回復을 보여 준 國內 育成系統인 稔性回復親을 交配하여 그 雜種들의 生産性을 3가지 相異한 件 下에서 栽培檢討하였다. 그 結果는 다음과 같다. 1. 育成不稔系統들의 維持親은 導入不稔系統들의 維持親에 比하여 平均 48%나 多收인데도 不拘하고 몇 가지 韓國育成品種을 稔性回復親으로 하여 雜種을 만들었을 경우, 育成不稔系統과의 雜種을 導入不稔系統과의 雜種에 比하여 平均 26%나 收量이 낮았다. 同一郡內에 있어서도 組合에 따라 顯著한 差가 있었다. 2. 收量構成形質別로는 導入不稔系統들은 當粒數와 千粒重이 크고 育成不稔系統들은 이들이 낮았으며, 稔性回復系統들은 大體로 이들의 中間이었다. 3. 不稔維持系統의 雜種生産性과 不稔系統의 雜種生産性과의 相關은 顯著하지 못하여 維持系統의 雜種生産性으로 不稔系統의 雜種生産性을 推定하기에는 不充分하였다. 4. Heterobeltiosis로 表示한 雜種强勢는 導入系統들이 顯著하게 높았고 育成系統들에서 낮았으며, 同一郡內에서도 系統에 따라 다르게 나타난다. 5. 導入不稔系統들은 當粒數와 千粒重의 雜種强勢가 크고 育成系統들은 數와 稔實率의 雜種强勢가 크게 나타났다. 6. 不稔系統의 雜種强勢와 維持系統의 雜種强勢와의 相關은 中 程度이었으며, 이러한 傾向은 導入系統에서나 育成系統에서 비슷하다. 7. 導入系統들은 GCA가 높고 SCA가 낮은데 比하여 育成系統들은 GCA가 매우 낮고 SCA는 中 程度이었으며 稔性回復親들은 GCA는 中 程度, SCA는 매우 높았다. 8. "收量이 많은 系統들은 自植收量이 낮고, GCA가 極度로 높으며 SCA와는 相關이 없고 heterobeltiosis가 매우 높은 系統"이라고 말할 수 있는데, 이런 結果가 普遍化 될 수 있는가는 앞으로 더 檢討되어야 할 것이다. Cytoplasmic-Genetic-Male-Sterile (CGMS) lines were bred through backcrosses of ms-Wa derived from foreign CGMS limes to the Korean cultivars. Both the MS and their maintainer lunes of the introduced and the bred were crossed with identified fertility restorer (Rf) lines and their F1 productivity was tested under 3 different environments. The results are summarized as follows: 1. When the Korean cultivars were used as fertility restorer (Rf) the hybrid yield of newly bred CGMS lines was 725.8 kg/ha and those of introduced ones was 844..5 kg/ha in average. The yield of their maintainers were, in average, 558.7 kg/ha and 377.2 kg/ha, respectively. Yield differences among lines within a group of lines were significant. 2. Among the yield component agronomical characters, the number of spikelets per panicle and 1000grain weight contributed significantly to the hybrid yield of introduced ms lines, while those of bred ms lines were not significant and those of Rf lines were in between of them. 3. The correlation between the ms lines hybrid productivity and their maintainer's hybrid productivity was not significant and the correlation coefficient for the hybrid productivity of Chinese ms lines and their maintainers was even lower. This might imply that it is difficult to predict the hybrid productivity of the breeding ms lines with that of the recurrent parent to be used in the backcrosses to introduce the foreign CGMS into the leading Korean cultivars. 4. The hybrid vigor of yield, expressed in terms of Heterobeltiosis, was greater in the hybrids with introduced CGMS lines than the hybrids with breeding lines which are more closely related to the Rf parents, and it was widely variable depending upon the lines and environments. 5. The heterobeltiosis of the introduced CGMS lines were more prominent in the spikelets per panicle and 1000grain weight but the heterobeltiosis of the bred lines were distinct in the number of panicles and % of fertility. 6. The correlation between the yield heterosis of CGMS lines and those of their maintainer lines hybrids was not significant and the trends were same in both of the bred and introduced. 7. The introduced lines showed high GCA and low SCA, while the bred lines showed very low GCA and medium SCA. But, the Rf lines showed medium GCA and very gifh SCA. 8. In this experiment, the highly productive CGMS lines showed rather lower productivity of their maintainer line, extremely high GCA, not significant correlation with SCA and very high yield heterobeltiosis. These results should be conformed through the extended breeding materials.

雄性不稔을 利用한 水稻 雜種品種 開發 : I. Hybrids utilized chinese CGMS I. 中共의 CGMS를 利用하는 雜種品種

許文會,S.S. Virmani,徐學洙 서울大學校農科大學 1984 서울대농학연구지 Vol.9 No.1

中共의 CGMS(細胞質-遺傳子的雄性不稔)을 利用한 雜種品種을 開發하기 爲하여 1982, 1983 兩年間 雜種品種의 收量性을 檢討하는 한편 韓國品種을 中共의 CGMS母本에 交配하여 그 F₁의 稔性을 檢定하고 MS維持系統을 2~4回 backcross하여 CGMS系統을 育成하였다. 그 結果를 要約하면 다음과 같다. 1. 雜種의 收量은 多收性標準品種에 比하여 4.6~24.3% 增收되며 組合에 따라 年次에 따라 環境에 따라 變異가 甚하였다. 收量의 雜種强勢現象은 主로 穗當粒數와 千粒重의 雜種强勢로 表現되었으며 穗數와 稔實率은 雜種에서 減收의 方向으로 作用하였다. 2. 稔性回復親의 收量性으로 그 回復親과의 雜種의 收量性을 推測할 수 없었으며 이러한 組合別 特異性은 出穗日數에서도 認定할 수 있었다. 3. V20A, V41A, Z97A 3個의 CGMS系統을 써서 24個의 維持系統과 30個의 稔性回復系統을 檢定하였다. 4. 本 硏究에서 供試된 中共의 CGMS系統 V20A, V41A 및 Z97A는 同一品種이 共通으로 維持系統 또는 稔性回復系統으로 될 수 있었음에 비추어 보아 3가지 MS系統이 다같은 體系의 MS라고 判斷된다. 5. 6個의 찰벼系統과 7個의 메벼系統을 2~4回 backcross해서 CGMS系統을 育成하였다. This paper reports the results of the studies on (1) the scope of the yield heterosis of the hybrids facilitated by the Chinese Cytoplasmic-Genetic Male Sterility (CGMS), (2) the fertility responses of the Korean cultivars and breeding materials in the hybrids crossed with Chinese CGMS and (3) the progress of breeding CGMS lines utilized by the Chinese CGMS. The results are summarized as follows: 1. Though the variations were significant depending on the cross combinations, years and environments, the hybrids showed 4.6%-24.3% higher yield over the highest yielding check variety. Their yield heterosis were expressed through the increased number of grains per panicle and grain weight. 2. The yield and heading data of a hybrid were not able to directly estimate through its parents, implying the manifestation of specific combining ability. 3. Among the 86 cultivars and breeding lines tested for the grain fertility of their hybrids with the Chinese CGMS lines, V20A, V41A and Z97A, 24 of them showed nearly complete sterility and 30 of them showed nearly complete fertility. These will be utilized as a MS maintainer or as a fertility restorer. 4. Many cultivars and breeding lines tested here responded as a MS maintainer or as a fertility restorer common to all of three CGMS lines, implying that they belong to the same MS system. 5. Six of waxy and seven of non-waxy CGMS lines are being bred through the back-crosses 2-4 times to the Chinese CGMS lines.

韓國水稻品種의 熱帶地方에서의 生育相

許文會 서울대학교 1967 서울대학교 論文集 Vol.18 No.-

38 Korean rice varieties were grown at the International Rice Research Institute (N 14°17′) in the Philppines and at Suwon (N 37°16′) Korea, and the growth behavior were compaired for their ecological responses. Distinct reductions in growth duration and yield components were observed. In growth duration 9 to 83% of total possible reduction are discovered by this study. Most severe deterioration in yield components were observed in grain fertility following by number of grains, number of panicles and by grain weight. 36 Korean rice varieties were grown at the IRRI (International Rice Research Institute) in the Philippines (N 14°17′) and at Suwon, Korea (N 37°16′), and the growth behavior were compared for their ecological responses. In this study special emphasis were put to understand the ecological responses of Korean leading varieties to the tropical conditions and to compare the IRRI rice environment to the one of Korea. Through the study, several distinct evidences were found and the are summarized as follows: 1. Growth durations of tested varieties were reduced distinctly at IRRI, and they were shorter in dry season than those grown in wet season. 2. Generally the early varieties showed greater reduction of growth duration at IRRI. In Korea, so far reported, only 17% to 91% (average 78.3% at Honam and 63.8 at Suwon) of total possible reduced duration could discovered yet, and the rest 83% to 9%(average 21.7% at Honam and 36.2% at Suwon) are discovered by this study for the tested varieties. 3. Distinct reduction in growth duration caused insufficient growth at IRRI, and significant correlations were found between the growth duration and growth amount. Relatively slow growth rate also were observed in the leaf emergence periodity of tested varieties than tropical varieties at IRRI. 4. Deteriorated yield components were measured at IRRI, and the most severe component was fertility, following by number of grains, number of panicles and grain weight. 5. It was pinted out that the better understanding in temperature reponses of a variety is required under natural conditions of Korea, for both of improving cultural practies and breeding better lines. 6. The yielding potential of some Korean native varieties at IRRI showed the evidence of the necessity for new devices in which the ecological responses of a variety could be checked properly. 7. It was also pointed out that the varietal characteristics of a wide adapted variety are required to be incoorperated to the improved Korean varieties.

水稻 品種間 交雜에 있어서 稈長의 遺傳 分離 : Ⅷ. 短稈 Japonica 品種들과 d-t 對應 長稈 檢定親과의 組合 Ⅷ. The segregation of culm length in the crosses between short Japonica cultivars and a tall Indica tester allelic to d-t height.

金弘烈,金容權,安鍾雄,朴淳直,許文會 서울大學校 農科大學 1985 서울대농학연구지 Vol.10 No.2

短稈 Japonica 品種들의 Semi-dwarf (d-t) gene에 對한 allelism을 檢討하기 위하여 Semi dwarf gene을 가진 wx 817과 그에 대하여 allelic tall 因子를 가진 Binato를 檢定親으로 하여 Binato에 6個의 短稈 Japonica 品種을 交配하여 그 F₁, F₂ 및 F₃를 展開하여 稈長을 調査하였다. 그 結果를 要約하면 다음과 같다. 1. 檢定親稈 組合인 Binato×wx 817의 F₂에서는 長稈:短稈이 3:1로 分離되어 기왕의 報告와 一致하였다. 2. 供試된 短稈 Japonica 品種들은 檢定親인 Binato와의 組合 F₂에서 年次間 變異에 關係없이 모든 組合에서 長稈:短稈이 3:1로 分離되었다. 3. 短稈群에서 選拔된 F₃系統은 選拔 當時의 稈長을 中心으로 正規分布를 나타냈으나, 長稈群에서 選拔된 系統은 分離하는 것과 그렇지 않은 것이 2:1로 分離되어 理論値에 適合하였다. 4. 組合에 따라서는 F₃系統의 稈長 變異의 幅이 F₂集團에 비하여 다소 短稈된 組合과 伸張된 組合이 있었으나 稈長의 分離 樣相은 모든 組合에서 同一하였다. 5. 以上의 結果로 보아 供試된 短稈 Japonica 品種들의 稈長을 支配하는 主??遺傳子는 同一하지만 組合에 따라 서로 다른 微??遺傳子가 存在하는 것으로 推定된다. 6.F₂長桿群에서 選拔한 2群, 長一長群과 長一短群은 F₃에서 분명히 差가 나는 mode를 나타내어 選拔의 를 할 수 있었다. F₂短桿群에서 選拔한 F₃個體들의 變異를 보아 短稈群에서의 選拔도 有意할 것으로 추축되었다. Investigations were made to search for the semi-dwarf Japonicas allelic to the semi-dwarf rice cultivars which is controlled by d-t gene. Six dwarf Japonicas, Reimei,Hoyoku,Shiranui,Kokumasari, M.7 and S.224 were crossed to the tall tester cultivar, Binato. Binato is known having tall allelic gene to semi-dwarf gene d-t. Their F₁, F₂, and F₃ were grown in 1984 and 1985 and culm length were measured at harvest. The results are summarized as follows: 1. In the F₂ of test cross, Binato/wx817, culm ength was segregated 3 tall to 1 short, which conformed the tester's validity. 2. The F₂s of all 6 crosses showed 3 tall to 1 short segregation which indicated the short Japonicas were allelic to the tall tester variety. 3. F₃lines selected from short group of F₂showed no segregation but F₃ lines selected from tall group of F₂ were segregated in to 2 segregating and 1 not-segregating. 4. The range of variation of the short segregants and the tall segregants were variable depending on the cross combination, but the general patterns were similar in all 6 crosses. 5. From the results of F₂and F₃ segregations, it was concluded that the 6 semi-dwarf Japonicas tested here were controlled by same major gene d-t though they were modified by different minor genes. 6. The modes of segregation in F₃s selected from taller tall and selected from shorter tall were significantly different in every crosses which implies the selection effects. The selection effects in the short group also was presumed from their wide variations in F₃.

水稻의 찰과 메 雜種에서 F₃메종자의 Amylose 含量變異 : Variation of amylose content of clear and chalky non-waxy F₃seeds in the waxy and non-waxy rice hybrids

金弘烈,許文會 서울大學校農科大學 1984 서울대농학연구지 Vol.9 No.1

The purpose of this study was to investigate the selection efficiency for the amylose content of rice grain in the waxy and non-waxy hybrids. Two waxy lines were crossed with a non-waxy variety and their F₂ plants were grown in the field and their phenotypic non-waxy seeds were separated in F₂individual base into clear and chalky kernels for the analysis of amylose content. The results obtained from the comparison of amylose contents were summarized as follows; 1. The amylose content of non-waxy F₃seeds from homozygous F₂plants was higher than the non-waxy F₃seeds from heterozygous F₂plants and the chalky grains were higher than the cle ar grains. 2. The difference between the genotypes was larger than the difference between the clearness. 3. The above pattern of amylose content was same in both crosses. 4. From the results the importance of the choice of amylose restorer was emphasized.

벼멸구에 抵抗性인 매끄러운葉 찰벼 系統 wx817

朴淳直,許文會,李殷雄,崔承允 서울大學校 農科大學 1981 서울대농학연구지 Vol.6 No.1

검수삭제 The paper reports about the breeding procedures and the agronomical characteristics of wx817 lines which has resistance to brown plant hopper (Nilaparvata lugens Stal.) with smooth leaves and floral glumes. 1. The glutinous rice wx817 was bred from the crosses 1R1317/1R833//1R667-98⁴/4/Malakit sinaguing/IR667-98³//1R2061/1R667-68. 2. The glabrous glutinous wx817 line also show the resistance to the stripe and dwarf viruses and bacterial leaf blight pathotype ⅠandⅡ. The penetrance of the restance to bacterial leaf blight pathotype I was incomplete. 3. Heading date of wx817 is about a week earlier in ordinary season and 4-5 days earlier in late season than that of Josangtongil. 4. The performance and other traits of wx817 are alike to the Josangtongil and Tongilchal. 5. The utility of smoothness in rice breeding and cultural practice are discussed.

쌀 胚乳의 Alkali 崩壞性의 遺傳 Ⅱ. 高ㆍ中ㆍ低 Alkali 崩壞性 組合에서 雜種種字 (F₁)의 Alkali 崩壞性의 表現과 그 遺傳分離

S.Z. PARK(朴淳直),M.H. HEU(許文會) 한국육종학회 1981 한국육종학회지 Vol.13 No.1

Alkali digestibility value (ADV) were tested for the F₁ and F₂ seeds of the crosses among low, medium and high ADV parents. Hybrid seeds of seven possible different combinations among low, medium and high ADV parents, i.e. LLL, LLM, MML, MMM, MMH, HHM, and HHH, were obtained at high and low temperature utilizing cytoplasmic male sterility to minimize the influences of hybridization operations. ADV of seven different hybrids LLL, LLM, MML, MMM, MMH, HHM, and HHH were 1.25, 1.63, 1.80, 3.43, 4.68, 4.95, and 5.67 at high temperature and 1.82, 4.00, 4.19, 6.38, 6.38 6.38 and 6.50 at low temperature respectively. ADV of F₂ seeds turned out 3 low to 1 medium in the cross of low and medium ADV parents while no theoretical value observed in the cross of medium and high ADV parents at both temperature conditions. From the results it was concluded that the ADV is controlled by one major gene, low ADV being dominant over medium ADV, and a few minor genes which modifying the ADV of different medium 1 low dosages of endosperm, while the dosage effect of high ADV to medium ADV appeared to be additive at high temperature only. All the combinations showed significantly high ADV value at the low temperature, and the temperature effects were higher in the M-ADV combinations.