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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Ginseng Research
Journal Basic Information
Journal DOI :
The Korean Society of Ginseng
Editor in Chief :
Volume & Issues
Volume 12, Issue 2 - Dec 1988
Volume 12, Issue 1 - Jun 1988
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Growth Efficiency and Thermal Stress in Panax ginseng Grown at Various Temperatures under Dark
Journal of Ginseng Research, volume 12, issue 1, 1988, Pages 1~10
Panax ginseng seedlings were grown at various temperature regimes from 15 to
for 19 days under dark and the linear relationship between various regrowth efficiencies and thermal stress indices, cumulative superoptimum temperatures corrected with factors. Gross growth efficiency(shoot weight l root weight loss) was 37.5 % at the optimum temperature
, and 12.3% at the highest temperature,
while net growth efficiency (shoot weight + Sm)l(root loss-Rm), which corrected by maintenance respiration for shoot(Sm) and root(Rm) was 39.6% and 16.7 at optimum and highest temperature respectively. All growth efficiencies showed negative correlations (p = 0.001) with all thermal stress indices and negative(p = 0.001) with shoot growth(St). When growth temperature difference in a day was nil or above
growth efficiency decreased greatly. Thermal stress indices showed negative correlation with root dry matter loss(RDL) but positive with Rm. St showed positive correlation with RDL. Thermal stress appeared to inhibit substrate supply for shoot growth resulting in the extremely low growth efficiency comparing with other crops that seems to be main rate limiting factor of slow growth, Thus it is necessary that growth efficiency and thermal stress must be elucidated in terms of metabolic pathway.
Effect of Light Intensity and Temperature on the Photosynthesis and Respiration of Panax spp
Journal of Ginseng Research, volume 12, issue 1, 1988, Pages 11~29
This study was conducted to investigate the effect of light intensity and temperature on the photosynthesis and respiration of ginseng plant. Highly significant, second degree curvilinear regressions were recognized among the photosynthesis of ginseng leaves, light intensity and temperature. And an interaction between the effects of light intensity and temperature on the photosynthesis of ginseng leaves was found to be highly significant. The increasing rate of photosynthesis with the increase of light intensity was markedly decreased with increasing temperature. The light compensation point of ginseng leaves was significantly varied with temperature, and the average point was approximately 600 lux. The light saturation point of Korean ginseng was 11,000 lux at
and around 9,500 lux at above
. The decreasing rate of photosynthesis with the increase of temperature significantly increased with increasing light intensity. The optimum temperature for the photosynthesis of ginseng leaves was about 15 to
and markedly decreased with increasing light intensity. The highest photosynthesis occurred in ginseng leaves grown with the shade of 15% transmittance. The respiration of ginseng leaves increased with the shade of 5% and/or 30% transmittance. High temperature stimulated the respiration of ginseng leaves. Percent respiration to photosynthesis of ginseng leaves grown with the shade was increased at high temperature and decreased with increasing light Intensity. It was also increased with increasing transmittance. The maximum
absorption of ginseng leaves grown with the shade of 5Ps and ISVS transmittance accurred at 9 o'clock a.m., whereas that of 20% transmittance occurred at 7-9 o'clock a.m. The duration of
absorption was distinctively long with the shade of high transmittance. The
compensation point in the photosynthesis of ginseng leaves was 130 ppm.
Effect of tight Intensity and Temperature on the Physiological Characteristics and Growth of panax spp. Leaves
Journal of Ginseng Research, volume 12, issue 1, 1988, Pages 30~39
This study was conducted to investigate the effects of light intensity and temperature on the physiological characteristics and growth of ginseng leaves. The higher the transmittance of the shade, the greater the area was decreased. In contrast, however, the amount of transpiration was increased. There was no significant difference in the number of stomata, but the size of stomata was distinctively decreased. The higher the transmittance of the shade, the more the contents of total chlorophyll, chlorophyll a and b, and cartooned were decreased. In contrast, however, the aye ratio of chlorophyll was increased. Regardless of temperature, the contents of chlorophyll providing maximum photosynthesis at the end of June and August were 2.1mg and 1 8mg/g F.W. respectively.
Effect of Light Intensity and Temperature on the Growth and Root Yield of Panax ginseng
Journal of Ginseng Research, volume 12, issue 1, 1988, Pages 40~46
This study was conducted to investigate the optimum temperature and light intensity of photosynthesis and transmittance in the shade for better growth and root yield of ginseng. The 3-year-old ginseng plants grown under the shade of 5, 10 and 20% transmittance did not show any significant difference in the stem length, stem diameter, leaf area and root length. The root diameter markedly increased under the shade of 10% and 20% transmittance, and the root was the heaviest under the shade of 20% transmittance. The 6-year-old ginseng plants grown at 20% transmittance showed the largest root diameter but the root length was not influenced by transmittance. The root was heaviest in the shade of 20% transmittance.
Survey of Damages of Panax ginseng Due to larvae of Holotrichia morose and Holotrichia diomphalia
Kim, Gi-Hwang ; Kim, Sang-Seok ; O, Seung-Hwan ;
Journal of Ginseng Research, volume 12, issue 1, 1988, Pages 47~52
In order to establish the integrated management of white grubs in ginseng field damages of ginseng plants (Panax ginseng C.A. Meyer) by the larvae of the larger black chamfer (Holotrichia morose Waterhouse) and the Korean black chamfer (Holotrichia diomphalia Bates) were investigated. Most of ginseng damages due to H, morose usually occurred in September through October, mainly on 2nd year plants. However, the damage by H. diomphalia occurred in September through October (usually in odd number of years) on 2nd year plants and in the following May and June on 3rd year plants. Therefore, in the fall of every odd number of years, synchronized occurrence of the two species caused severe damage on ginseng plants. Both of the 3rd instar larvae of the forementioned two species damaged ginseng roots regardless of the age of the plants when ginseng plants were artificially infested with them. Ginseng fields located at the slopes with good drainage are most likely damaged by them.
Seasonal Soil Temperature and Moisture Regimes in a Ginseng Garden
Bailey, W.G. ; Stathers, R.J. ; Dobud, A.G. ;
Journal of Ginseng Research, volume 12, issue 1, 1988, Pages 53~62
A field experiment was conducted in the arid interior of British Columbia, Canada to assess the seasonal soil temperature and moisture regimes in an American ginseng garden. As a consequence of the man-modified microclimate (elevated shade canopy and surface covering of mulch), the growing environment of the crop was fundamentally altered when compared to adjacent agricultural growing environments. In the ginseng garden, soil temperatures were found to remain low throughout the growing season whereas soil moisture remained high when compared with the outside garden environment. These results indicate that even in the hot, arid environment of the interior of British Columbia, the growing of ginseng is undertaken in sub-optimal conditions for the major part of the growing season. This poses challenges for the producers of the crop to modify the architecture of the gardens to enhance the soil regime without creating a deleterious aerial environment.
The Effect of Ginseng Saponin Fractions on Humoral Immunity of Mouse
Park, Han-U ; Kim, Se-Chang ; Jeong, No-Pal ;
Journal of Ginseng Research, volume 12, issue 1, 1988, Pages 63~67
To investigate the effect of ginseng saponin fractions (total saponin, diol saponin and triol saponin) on the antibody production and on the recovery of immunosuppression in mouse, chick
-globulin was used as immunogen and CY(cyclophosphamide) as immunosuppressive drug. The effect of ginseng saponin fractions on the production of total serum protein was investigated also. Circulating antibody was measured with ELISA method. Total saponin, dial saponin and triol saponin resulted 4 times higher titer values compared to control group in the production of antibody but resulted no effect on the recovery of immunosuppression induced by CY. From the above results ginseng saponin fractions are believed to effect on intact immune system and to promote antibody production by helping the cooperations among lymphocytes or the growth of lymphocytes. And the increase of total serum protein has no direct relations with the increase of circulatory antibody.
Yields of Ginseng Seedlings and Cultivation Methods in Ban-Yang-Jik (Semimodified Soil) Nursery
Journal of Ginseng Research, volume 12, issue 1, 1988, Pages 68~75
Yields of ginseng seedlings and cultivation methods were investigated in 29 Ban-Yang-Jik (semimodified soil) nurseries to obtain some information about the production of ginseng seedling. The average number of available seedlings (useful for transplanting in the main field) per Kan (
cm) was 362. The percentage of available seedlings to the total seedlings harvested (rate of available seedlings) was 45 %. Although there were severe variations in the numbers and rates of available seedlings among the nurseries surveyed, the number of available seedlings were reduced due to both the short weighted and poor shaped (obese shape with poor root development) seedlings. The number of poor shaped seedlings was negatively correlated with height of seed-bed and frequencies of irrigation. Quadratic relations were noticed between rate of available seedling and heights of front post and rear post of shade. On the other hand, negative correlation was recognized between rate of available seedling and breadth of shade, but positive correlation was noted between rate of available seedling and frequencies of irrigation.
Effect of Ginseng Saponin Fraction on Ethanol Metabolism in Rat Liver
Journal of Ginseng Research, volume 12, issue 1, 1988, Pages 76~86
The rats were fed with 12% ethanol with and/or without 0. l% ginseng saponin instead of water for 6 days, and the acetaldehyde level of liver and serum, and [
]/ [NADH] and [
]/[NADPH] ratios of the liver were investigated. Acetaldehyde level of ethanol fed group (control) in liver and serum was much higher than not-ethanol fed group (normal), but that of ginseng saponin containing ethanol fed group (test) was only slightly higher than that of normal group. Decrease of [
] / (NADH) ratio of test group was also much greater than that of control group. Distribution of the radioactivity in hepatic lipids after the [l-
]-ethanol feeding intraperitonealy was investigated 30 minutes later. It was found that total radioactivity of the hepatic lipids of test group was much lower than that of control group. Analysis of individual lipids such as phospholipids, cholesterol, fatty acid and triglycerides showed that the depression of phospholipid biosynthesis and increase of fatty acid and triglycerides caused by ethanol feeding were significantly recovered by the co-feeding of ginseng saponin.
Photosynthesis Rate of American Ginseng under the different Monochromatic Light
;John T. A. Proctor;
Journal of Ginseng Research, volume 12, issue 1, 1988, Pages 87~91
Photosynthesis rates of ginseng (Panax quinquefolium) leaves were measured in a controlled environment at
under the different monochromatic light such as white(W), red(R) and blue(B) to obtain basic information applicable to the colored shading material for the ginseng growth. Photosynthesis rate relative to white(W) light was generally higher in R and lower in B comparing to white(W) light. This difference was negligible at the close to the light-saturation point, whereas the difference among the monochromatic light was extended with decreasing the irradiant. It suggests that red is good in color of shading material for growth of American ginseng.