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申昌浩,鄭丞根,車善佑 충북대학교 농업과학기술연구소 1990 農業科學硏究 Vol.8 No.1
Five inbreds and 20 F1s form a 5×5 diallel cross were used to obtain genetic informations on kernel characters in corn, which are necessary to improve seeds more adaptable to mechanical planter and to produce higher yielding hybrids with greater kernel dimension. Both general combining ability (GCA) and specific combining ability (SCA) were significant for kernel length (L), kernel width (W), kernel thickness (T), kernel weight, L/W, L/T and W/T. Greater GCA mean squares indicated additive effects were more important for W and L/W, while non-additive effects were more important for other characteristics. Significant reciprocal effects showed that female parents had greater effect on kernel dimension. Heterosis and heterobeltiosis were 14-43% and 8-31%, respectively, for all characteristics except T. GCA effects indicated that inbreds FR25 and KS42 increased L, KI16A increased W and WT, FR14A increased T, while FR2A decresed L, W, T, and WT. Genetic analysis also indicated the dominance and additive effect for W/T. No interactions between non-allelic genes and overdoinance were indicated for L, W and WT. Narrow sense heritability (0.29) indicated that selection for only W would be effective, although broad sense heritabilities for L, W and WT were 0.78-0.87
토당귀 종자의 형태적 특성과 발아와 입모율에 대한 저장방법,생장조절제 및 프라이밍 처리 효과
안희정,안복주,·김도현,·안영섭,·김영국,박춘근,이상원,·박충범·차선우,·송범헌, 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.1
This study was conducted to have basic and applied informations to establish the cultivation method and to improve the cultivation techniques of Angelica gigas Nakai through investigating the rates of germination and seedling establishment with treatment of plant growth regulator and seed priming. The germination rates of round shape seed were about 0.3~12% higher than those of parallel shape. The germination rates with different storage durations were increased at the level of 25oC and 4oC with the storage days, while they were clearly higher at -20oC compared to those at 4oC and 25oC without the storage durations. With the results of germination rates with treating of plant growth regulator and seed priming, their rates with the round shape seeds were comparatively higher about 6% than those with parallel shape seed and they were increased with increasing of the storage durations. The germination rates were generally appeared higher with GA3 than did those with seed priming. The highest germination rate was appeared at 50 ppm GA3 of plant growth regulator and at -0.5 MPa PEG6000 of seed priming. The germination rates?ㅤ ?ㅤ of Angelica gigas were different with different temperature, storage durations and the treatments of plant growth regulator and seed priming. These results could be used according to different cultivating conditions.
유기질비료 시비량에 따른 오미자 묘목의 초기 생육특성에 관한 연구
이경아,박태호,박성용,김도현,오문국,김민수,안태진,이상원,김영국,안영섭,박충범,차선우,송범헌 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.1
This study was carried out to have basic and applied informations to find the optimum nitrogen fertilization level for organic cultivation and to investigate early growth characteristics of Schizandra chinensis Baillon. Different application levels of the organic fertilizer were based on the recommended rate of N fertilizer. Five different levels of the organic fertilizer were applied to S. chinensis and early growth responses such as the length of vine, the diameter of vine, the number of leaves, and the number of branches were investigated. Lengths of main and total vines were shown longer at the level of 1.0 time organic fertilizer than those at others. The vine length at early growth was the highest at the level of 1.0 time organic fertilizer among the treatments. Stem diameter was shown thicker level of 1.0 time organic fertilizer than others on August and September, whereas on October it was the thickest in the conventional cultivation. Number of leaf was increased higher at the level of 1.0 and 2.0 times organic fertilizer than that in the compared to conventional. The number of branches was appeared the lowest at the level of 1.0 time organic fertilizer at early growth, however they were increased through progressing their growth stages. They were not significantly difference among the treatments except for the level of 2.0 times organic fertilizer. Based on the research results, the growth of S. chinensis was commonly higher at the level of 1.0 time organic fertilizer compared to other treatments.
A Waxy Corn Hybrid with Early Maturity and High Yield, "Sinchalok"
Seon Woo Cha,Hyeon Gui Moon,Tae Wook Jung,Beom Young Son,Nam Kyu Park,Sung Kook Kim,Yong Hwan Ryu 한국육종학회 2004 한국육종학회지 Vol.36 No.1
Sinchalok, a new waxy corn hybrid was developed from the cross between two inbred lines KW36 as a seed parent and KW1 as a pollen parent at the National Crop Experiment Station, RDA in 2001. Sinchalok was 66 days in days to silking and early maturity hybr
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.
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.
A Waxy Corn Hybrid with Long Ear and Lodging Resistance, "Chalok3"
Seon Woo Cha,Hyeon Gui Moon,Tae Wook Jung,Beom Young Son,Nam Kyu Park,Sung Kook Kim,Yong Hwan Ryu,Hwang Kee Min,Hong Jip Choi,In Mo Ryu 한국육종학회 2004 한국육종학회지 Vol.36 No.1
Chalok3, a new waxy corn hybrid was developed at the National Crop Experiment Station, RDA in 2001. It is a single cross hybrid, which was crossed between KW35 as a seed parent and KW7 as a pollen parent. Chalok3 was 73 days in days to silking and eight d