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二面交雜에 依한 옥수수 葉面積構成 形質의 組合能力과 遺傳分析
Seon Woo Cha(車善佑),Sang Il Park(朴相一),Seung Keun Jong(鄭丞根),Keun Yong Park(朴根龍),Seung Ue Park(朴勝義) 한국육종학회 1985 한국육종학회지 Vol.17 No.4
Six corn inbreds and 15 F₁ among their were used to study the combining ability and genetic analysis of leaf area components in corn(Zea mays L.). GCA(general combining ability) was more important than SCA(specific combining ability) in LN(leaf no.), TL(total leaf length) and MW(mean leaf width). Ga 209 showed the highest GCA effects in LN, TL, TW(total leaf width), TLA(total leaf area) and LAI, while B84 showed the lowest GCA effects in LN, TLA and LAI. The F₁ between KS15 × Va35 showed the highest SCA effects in TL,TLA,ML,MW, MLA and LAI, and the F₁ between KS8 × B68 showed the lowest in all characters. Partial dominance was exhibited by LN, and over dominance was exhibited by TL, TW, TLA, ML, MW, MLA and LAI. Among 6 inbreds, Ga 209 had the most dominant genes for all characters, while Va 35 had the most recessive genes for all characters.
옥수수 自殖系統과 F₁에 대한 登熟期間 및 登熟速度 比較
Seon Woo Cha(車善佑),Sang Il Park(朴相一),Seung Keun Jung(鄭丞根),Seung Ue Park(朴勝義) 한국육종학회 1994 한국육종학회지 Vol.26 No.4
In order to understand the effects of duration and rate of grain filling of corn inbred lines and hybrids, twenty eight corn hybrids from diallel crosses of eight inbreds were planted at Experimental Farm of Chungbook Provincial Rural Development Administration in 1988. Measurements for characters were made on the upper and the lower parts of the same ear. Lag period of kernel from upper part of the ear ranged from 11 to 15 days, while lag period of kernel from lower part of the ear ranged from 9 to 13 days in parental inbreds. In F₁, hybrids, the upper part of the ear showed 10 to 16 days of lag period and the lower part of the ear showed 9 to 12 days. Effective grain filling periods for the parents ranged from 19 to 30 days regardless of the ear position, and the average period was about 24 days. In F₁, the effective grain filling period was from 23 to 29 days in the lower part(average 26.3 days), and the effective grain filling period was from 20 to 31 days in the upper part(average 24.2 days). Mean difference of effective filling period was from 20 to 31 days in the upper part(average 24.2 days). Mean difference of effective grain filling period between the lower and upper parts of the ear was about 2.1 days, and the upper part of the ear was a few days shorter than the lower part of the ear. Total grain filling period in the upper and lower part of the ear of parental lines were about 40 days and 39 days, respectively, and in the F₁ these were about 42 days and 43 days, respectively, and in the F₁ these were about 42 days and 43 days, repectively. Days to black layer appearance in the upper and the lower parts of the F₁ were 41 and 42 days and 43 days, respectively. Days to black layer appearance in the upper and the lower parts of the F₁ were 41 and 43, respectively, and these were about one to 3 days later than the 40 days of parental lines. The latest days of black layer appearance for the F₁ were 49 days of FR2A/KS42 and the most quick days of black layer appearance for the F₁ were 47 days of A508/A662. The rate of grain filling during lag period of parents was 84㎎/100kernel (k)/day at the upper part and 107㎎/l00k/day at the lower part of the ears. The rate of grain filling during the lag period of F₁ hybrids was 101㎎/100k/day at the upper part and 142㎎/100k/day at the lower part. The rate of grain filling during effective filling period of parents was 700㎎/100k/day at the upper part and 814㎎/100k /day at the lower part of the ear. The rate of grain filling during the effective filling period of F₁ was 878㎎/100k/day at the upper part and 944㎎/100k/day at the lower part of the ear. The rate of grain filling of the F₁ was a little faster than that of the parental lines.
Seon Woo Cha(車善佑),Sang Il Park(朴相一),Seung Keun Jong(鄭丞根),Seung Ue Park(朴勝義) 한국육종학회 1995 한국육종학회지 Vol.27 No.1
This study was carried out to investigate the relationships among grain filling characteristics (duration and rate of grain filling), grain yield and yield components in twenty eight corn hybrids with different maturity. Highly significant correlations were observed between the effective grain filling period and days to silking, kernel weight. Highly positive correlation were detected between the rate of grain filling during the effective grain filling period and kernel weight, kernel width and kernel volume. Significant positive correlations were detected between total grain filling period and rate of grain filling of lower part of the ear, kernel weight and grain yield.
Seon Woo Cha(車善佑),Sang Il Park(朴相一),Seung Keun Jong(鄭丞根),Keun Yong Park(朴根龍),Seung Ue Park(朴勝義) 한국육종학회 1988 한국육종학회지 Vol.20 No.1
Six corn inbreds and 15 F₁ among them were used to study the combining ability for agronomic characteristics. General combining ability(GCA) was more important than specific combining ability (SCA) in ear node, lodging, row number (ear) and 100 kernel weight. Ga 209 showed the highest GCA effects in plant height, ear height and lodging, and Va 35 showed the highest GCA effects in ear length, kernel number per row, kernel number per ear and grain yield, while B 84 showed the lowest GCA effects in ear length, ear diameter, 100 kernel weight and yield. The F₁ between B 68 x Ks 15 showed the highest SCA effects in ear length, kernel number per ear and grain yield, and the F₁ between B 68 x Ks 8 showed the lowest SCA effects in the other all characters except days to tassel and silk. Grain yield was highly sinificantly correlated with plant height, ear height, ear length, ear diameter, kernel number per row, kernel number per ear and 100 kernel weight.
Seon Woo Cha(車善佑),Sang Il Park(朴相一),Seung Keun Jong(鄭丞根) 한국육종학회 1995 한국육종학회지 Vol.27 No.4
This study was carried out to estimate the combining abilities of duration and rate of grain filling in eight-parental diallel cross in corn. Highly significant general(GCA) and specific combining abilities(SCA) were obtained for grain filling period and rate. The magnitude of variance for GCA was much larger than that for suggesting that additive gene effects were greater than non-additive gene effects. Inbred line, FR25 seemed to be effective in extending the days of lag period, effective grain filling duration and the black layer appearance, while YUBC208 appeared to shortening the days of grain filling duration. Inbred, KI16A increased the rate of grain filling, while A508 decreased the rate of grain filling. FR2A/YUBC208, KS42/A508 and YUBC 208/A662 showed high SCA for extending grain filling period during lag period, while FR25/FR2A and KI16-A/KS42 were effective in shortening the grain filling period. During the effective grain filling period, FR2A/FR14A extended the grain filling period, but FR25/A508 shortened the grain filling period. FR2A/A662 and KS42/YUBC208 were effective in speeding up the rate of grain filling, while FR25/FR2A was effective in slowing down the rate of grain filling.
조직학적으로 확진한 결핵성 복막염 환자의 복수 Adenosine deaminase ( ADA ) 활성도에 관한 연구
배선우(Seon Woo Bae),진춘조(Choon Jo Jin),심영학(Young Hak Shim),신계철(Kye Chul Shin),권상옥(Sang Ok Kwon),김남동(Nam Dong Kim),차신웅(Shin Woong Cha),이광훈(Kwang Hoon Lee),장우익(Woo Ick Jang) 대한내과학회 1989 대한내과학회지 Vol.36 No.1
N/A Recent investigations have suggested that the measurement of ADA activities in various body fluids is useful in the diagnosis of tuberculous effusion. In this study, ascitic fluid ADA activities were measured in 18 cases of tuberculous peritonitis, 18 cases of malignant ascites and 33 cases of liver cirrhosis with ascites. The results obtained were as fallows: 1) The mean ADA activity in tuberculous peritonitis was 184.96±27.55U/L, in malignant ascites 22.35±3.10U/L and in liver cirrhosis 7.37±0.61U/L. 2) The ADA activity in tuberculous effusion was significantly higher than in the rest of the groups(p<0.001). 3) The malignant effusion show no significant difference with transudative effusion(p>0.05). 4) As a screening test for tuberculous peritonitis, the ADA activities above 50-70U/L had a sensitivity and specificity of 100%. In conclusion, the measurement of ascitic fluid ADA activity may be a simple and reliable screening test for the diagnosis of tuberculous peritonitis.