• 한국약용작물학회:학술대회논문집
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• 2012.05a
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• pp.51-52
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• 2012

• Journal of Ginseng Research
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• v.27 no.2
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• pp.86-91
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• 2003

To develop a new ginseng variety with good quality and high yielding, a lot of individual ginseng plant were selected in the farmers'fields in 1968. Among them, a promising line,680-83-4, has been developed through comparative cultivation of several lines selected with pure line separation from local races in KT&C Central Research Institute, preliminary and advanced yield trials were performed fir 8 years.680-83-4 was designated as KG103, which was then registered as a new variety “Gopoong” with the regional yield and adaptation trials for 10 years (1981-1990) on December 27,2000 in Korea. Gopoong has different phenotype of a dark violet stem and dark red fruit and inverted triangle shape of berries cluster as compared with other varieties. Taproot of Gopoong was longer than local race Jakyungjong, and root yield was 4.5% higher than local race Jakyungjong. In red ginseng quality, the rates of Chun-Jeesam grade(Chun and Jee means 1 st and 2nd grade, respectively) were 16.6% and 9.4% for Gopoong and Jakyungjong, respectively. In these results, it was that Gopoong was superior ginseng line with good quality far manufacture of red ginseng.

• Korean Journal of Medicinal Crop Science
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• v.19 no.6
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• pp.441-445
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• 2011

This research was conducted to investigate the influence of variouis organic substrates on growth and yield of organically grown ginseng seedlings in a shaded plastic house. In the investigation of optimal substrate, the eight substrate were formulated by adjusting blending rate of peatmoss, perlite, coir dust(coco peat), and vermiculite. Then, the changes in physico chemical properties of root substrates as well as their influences on the growth characteristics and yield were determined at six months after sowing. The elevation of the blending rate of peatmoss from 50% to 70% with decrease in the rate of inorganic component (mixture of perlite and vermiculite) from 50 to 30% resulted in the increase in container capacities and decrease in total porosities and air-filled capacities. The concentrations of $NH_4-N$, $P_2O_5$ and K increased as the incorporation rate of castor seed meal, phosphate ore, and langbenite, respectively, were elevated during the root medium formulations. The PPV-1 and PPV-4 substrates produced high stem length, stem diameter, shoot fresh weight, leaf area and root length among eight substrate. Root fresh weight was heaviest in PPV-4 compound nursery media. The results of this experiment will be utilized in the new substrate application for ginseng organic culture in shaded vinyl house.

• Journal of the Korean Society of Tobacco Science
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• v.21 no.1
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• pp.82-88
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• 1999

The present study was conducted to compare the relative efficiency of two different haploid breeding methods in tobacco varietal development. A single FI hybrid plant from cross of two flue-cured cultivars of Nicotiana tabacum L., Bright Yellow4(BY4) and NC95, was used to develop the 30 anther derived dihaploid (ADH) lines and maternally-derived dihaploid (MDH) lines utilizing Nicotiana africana, respectively. As compared with mid-parent, mean of ADH lines showed increase in number of leaves, delay in days to flower and narrow in width of leaf. However, no significant differences in the other investigated characters were recognized. MDH lines also showed narrow width of leaf, while no significant differences in the other characters were observed. The variations of the investigated characters were generally greater in ADH than MDH lines. MDH lines had higher height of plant and shorter days to flower than ADH lines, while the other characters did not show remarkable differences. The degree of heritability for each of the characters observed between ADH and MDH was almost the same. The characters showing high heritability value were height of plant, number of leaves, days to flower, and yield, while those showing relatively low value were length of leaf, width of leaf, and total alkaloid content. Predicted gains from selection for increased yield were calculated for both populations(ADH, MDH) and correlated responses associated with selection for yield were estimated. Height of plant, width of leaf, days to flower, and concentration of reduceing sugar would be expected to improve with selection for yield much faster in the MDH population than in the ADH.

• Journal of Ginseng Research
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• v.11 no.1
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• pp.84-89
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• 1987

The contents of some chemical constituents in several parts of Panax ginseng were investigated. Each part of ginseng was extracted with 70% ethanol and then water. The yield of extract was the highest in fine root, and relatively low in roughly dried ginseng and white ginseng, On the other hand, the contents of total sugars in white ginseng and seedling ginseng were high, but low in leaf and peel. The contents of crude protein in roughly dried ginseng and white ginseng were high, but those in leaf, rhizome (nod) and peel were low. The content of crude fat was higher in leaf than in other parts of ginseng plants and that was the lowest in fine root. Among free sugars, the content of fructose was high in leaf and rhizome, but that was the lowest in fine root. In the case of glucose content, leaf contained the highest amount, but fine root did the lowest. Sucrose contents in white, roughly dried and lateral roots were high, whereas that in leaf was low.

• Journal of Ginseng Research
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• v.10 no.1
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• pp.1-10
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• 1986

To evaluate the possible utilization of ginseng by-products, chemical components of ginseng residue, reducing ability of DPPH, effect of residue extract on the yeast growth, amino acid contents of yeast cell, increase of residue extract yield by enzyme treatment were studied. Alcohol and water extract residue contained 43-46% total reducing sugar and 14-15% crude protein, while alcohol extract residue had 0.18% n-BuOH extract. Water extract of alcohol extract residue had about 45% reducing ability of DPPH in comparison with that of alcohol extract from ginseng roots. Essential nutrients for the yeast growth were found in extract when Saccharomyces cerevisiae was cultured in Czapeck medium, a compound medium, with the residue. The addition of residue extract to malt medium, a natural medium, enhanced 30-40% yeast growth. And content of each amino acid in yeast cell cultured on malt medium with ginseng residue extract was much more than that of the cell cultured without ginseng extract, but amino acid composition of yeast cell did not differ from one another. The treatment of alcohol extract residue with cellulase increased 250% yield of residue extract.

• Journal of Ginseng Research
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• v.6 no.2
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• pp.154-161
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• 1982

To determine the effects of mulching with the hulls of rice on the growth of the ginseng plant and changes of its growing environment-soil moisture content. subterranccan temperature and soil hardness- were investigated under different light intensity such as 5%, 10%, 20%, and 30% light transmittance rate(LTR). The results obtained were as follows; 1. Soil moisture content under the shading was decreased as the increase of light intensity, whereas it was increased about 1.5% in each plot of LTR by the mulching. 2. Suberranccan temperature under the shading was increased as the increase of light intensity. It was decreased on a hot day by the mulching but increased on a cold day. 3. Soil hardness was decreased by the mulching. 4. Sprouting date of the ginseng plants was acclerated for 7 days and sprout periods were shortened for f days by mulching compared to the non-mulching treatment. 5. Missing plant rate was increased severely as the increase of light intensity more Than 20% LTR In the non-mulching plots but did not severe in the mulching plots. Missing plant rate was decreased remarkably by the mulching. The degree of decrease was larger as the increase 6f light intensity. 6. Root yield was increased in the mulching plots compared to the non$.$mulching plots. The degree of increase was larger as the increase of light intensity. The highest yield was obtained at 20% LTR with mulching.

• Journal of Ginseng Research
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• v.27 no.1
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• pp.32-36
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• 2003

This experiment were conducted to select cheaper and more favorable compost among several kinds of composts which were produced by companies, farmers etc. instead of Yakto. The yield of usable ginseng seedling was also the highest in compost of Yakto, but that of usable seedling were inclined to be decreased in the compost of PL, Mushroom, Rice straw and HJ, in order. The content of inorganic salts in different kinds of composts was much different from individual organ part including leaf, stem and root. It was concluded that fully decomposed manure should be used and it needs to investigate perfect decomposed composts of PL and Mushroom instead of Yakto in order to yield ginseng seedings

• Korean Journal of Medicinal Crop Science
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• v.20 no.4
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• pp.217-221
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• 2012

This research was conducted to investigate the influence of various organic substrates on growth and yield of ginseng seedling grown organically in the closed plastic house. The pH and EC of substrates used for organically ginseng cultivation ranged 5.93~6.78 and 0.03~0.15 dS/m respectively. The concentrations $NH_4$-N and $NO_3$-N respectively was 14.01~68.63 mg/L, 5.60~58.83 mg/L. The average quantum of the closed plastic house was range from 10 to 16% of natural light. In July and August, the maximum temperature of the closed plastic house did not exceed 30 and the average temperature was maintained within 25 lower than the field because air conditioning ran. The PPV-1 and PPV-2 bed soil substrates produced higher stem length, stem diameter, shoot fresh weight and leaf area than those of conventional culture. In PPV-2 bed soil substrates, root fresh weight and root diameter was the highest. The root fresh weight of PPV-2 bed soil substrates in closed plastic house was maximum 25% heavier than the conventional cultivation. The results of this experiment will be utilized for making new substrate application for organic ginseng culture in the plastic house.

• Journal of Ginseng Research
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• v.22 no.4
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• pp.244-251
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• 1998

KG101 was developed by the Korea Ginseng & Tobacco Research Institute. We reported about yield trials and local adaptability test. Growth characteristics and red ginseng quality of KG101 in local performance test can be summarized as follows. Aerial parts growth, stem and leaf, was similar about KG101 and Jakyungjong, 4-year old and 6-year old ginseng. Emergence rate of KG101 was higher than Jakyungjong in the 3 location of local performance test. Taproot diameter of KG101 was smaller than Jakyungjong and taproot shape of KG101 had fitted characteristics, radish type and human body type, to manufactured red ginseng. Raw ginseng grade, 1st and 2nd of KG101 was higher than Jakyungjong's. Chun, Jeesam ratio to manufacture of 2nd grade of raw ginseng of KG101 was 25%, Jakyungjong was 6-13% in 3 location of local performance test. Distribution of red ginseng weight of Jakyungiong was heavier than KG101 in 2 location, Kongju and Jungup, but KG101 was heavier than Jakyungjong in Ichon. Red ginseng quality of KG101 was better than Jakyungiong. Main degrade factor of red ginseng quality was inside cavity and inside white, was not different lines and location.