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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Plant Resources
Journal Basic Information
Journal DOI :
The Plant Resources Society of Korea
Editor in Chief :
Volume & Issues
Volume 13, Issue 3 - Oct 2000
Volume 13, Issue 2 - Aug 2000
Volume 13, Issue 1 - Mar 2000
Selecting the target year
Studies on Chemical Components of Cephalotaxus koreana Nakai
Korean Journal of Plant Resources, volume 13, issue 2, 2000, Pages 89~94
Cephalotaxus koreana Nakai is endemic species of Korea. Since old days, the fruits have been used as a parasiticide and leaves have been used for a pierced wound by insects. The essential oil components from its aerial parts and stem bark by steam distillation were investigated. Several compounds were characterized by GC-Mass spectra. It was found that the leaves, stembark and flowers contain the compounds of essential oils, 1-octene-3-ol, hexadecanoic acid;
-carene mainly, linalylacetate,
-cubebene, 3,4-octadine-7-methyl , ferruginol(stem bark) and
-pinene , cyclopropane-1,1-dimethyl-2-(3-methyl-1,3-butadienyl), etc. This Cephalotaxus spp. contains the first components of ferruginol(M.W.286.03,
which belong to diterpene.
Effect of Soil Moisture and Texture on Saikosaponins Content and Antioxidative Enzyme Activities in Bupleurum falcatum L.
Korean Journal of Plant Resources, volume 13, issue 2, 2000, Pages 95~103
To study the effects of soil moisture and texture on characteristics of growth, content of saikosaponins and activity of antioxidative enzymes in Bupleurum falcatum L., content of saikosaponins(a, c and d) and activities of superoxide dismutase(SOD) and peroxidase(POD) were investigated with two Bupleurum genotypes(Jangsoo and Samdo). Two Bupleurum genotypes were grown under different soil moisture(deficit, normal, surplus) and soil texture(sandy, sandy loam, loam) conditions. Among the tested soil conditions, dry weight accumulation rate of both cultivars could be ranked in the order surplus > normal > deficit soil for soil moisture and sandy > sandy loam > loam for soil texture. Under the surplus soil condition, growth retardation of Samdo cultivar was more severer than that of Jangsoo. Furthermore, content of saikosaponin a, d, and c also could be ranked in the order deficit > normal > surplus and sandy > sandy loam > loam for soil moisture and texture, respectively. Although both Jangsoo and Samdo cultivars grown under water deficit condition showed the highest POD and SOD activity, in general POD and SOD activity in both shoot and root was remarkably high in Jangsoo cultivar compared with Samdo. Saikosaponin content of root was positively correlated with POD and SOD. However, shoot and root length were negatively correlated with POD.
Intraspecific Relationship Analysis of Eleutherococcus senticosus Max. by RAPD Markers
Korean Journal of Plant Resources, volume 13, issue 2, 2000, Pages 104~110
To analyse the genetic relationship and intraspecific variations among the Eleutherococcus senticosus population, the polymerase chain reaction(PCR) was performed total genomic DNAs of 10 E. senticosus collections by random 10 primers. The genetic diversity and genetic distance among 10 collections of Eleutherococcus spp. were used to describe the dendrogram showing phylogenic relationship. Ten collections were classfied into two group(group I, II) at the similarity coefficient value of 0.50. Group I included E. senticosus of Bukhado(Japanese), youngwal(Korea), E. seoulense, and E. chiisanesis while group II included several internal and Russia collection. The range of polymorphism was from 66.7 to 90.9% in 87 amplified DNA fragments. The similarity value of all collections ranged from 0.41 to 0.92. The average of genetic distance was 0.61.
The effect of different bag materials on grape quality and endeavor of maturation period determination
Korean Journal of Plant Resources, volume 13, issue 2, 2000, Pages 111~117
In an attempt to select grape bag, which elevates grape quality and make easy maturation period determination, the following research was carried out at Chungbuk Institute of Agricultural Technology, Grape Experiment Station. Light transmittance rate of bag reached to 11-65% with non-woven fabric and non-dripped vinyl bags. Non-dripped vinyl perforation and white painting bag resulted in 50 and 75%, respectively. Berry weights in non-woven fabric and non-dripped vinyl bag were high than that in paper bag. Non-dripped vinyl perforation 50%, white painting bag brought into fruit cracking, shattering, and rotten fruit, making the investigation difficult. Maturation period preceded about 1-4 day with non-woven fabric and non-dripped vinyl compared with that in paper bag. Soluble solids content with non-woven fabric and non-dripped vinyl bags was high and acidity showed a reverse result. Coloring extent was developed rapidly with non-woven fabric and non-dripped vinyl than paper bag. During initial state of coloring, coloring was rapid with Maekban-Stone mixed non-woven fabric and non-dripped vinyl + non-woven fabric bag. This was rapid with non-woven fabric bag as long appropriate maturation period. Abnormal berry rate was 5.4-7.0% with paper and non-woven fabric bags but brought about as much as 16.6-100% with non-dripped vinyl and it's mixed bags. Appearance quality was the best with index 9.0 for non-woven fabric bag. Maekban-Stone mixed non-woven fabric but non-dripped vinyl performance 50% white painting bag was the least, showing index 1.0. The time consumed for maturation determination was reduced to 74-93% with non-woven fabric and non-dripped vinyl bag compared with 17.4h/10a with paper bag.
Study on Appropriate Fertilization Level of Atractylodes macrocephala KOIDZ
Korean Journal of Plant Resources, volume 13, issue 2, 2000, Pages 118~123
This study was conducted to determine the appropriate fertilization level for growing one year old rhizome of Atractylodes macrocephala KOIDZ. According to N and K amounts were increased, the growth of above-ground parts was decreased but P was increased at this time. Based on N-P-K levels, application of 8-9-3 kg/10a was the most effectiveness for the growth of above-ground part, and 8-3-3 kg/10a for that of underground part. It can be estimated that 6-4-6 kg/10a treatment based on N-P-K may be the optimum fertilization level to obtain the highest yield of Atractylodes macrocephala KOIDZ using one year old rhizome.
Effect of Mulching Materials on Growth and Agronomic Characteristics of Angelica gigas NAKA in Southern Area
Korean Journal of Plant Resources, volume 13, issue 2, 2000, Pages 124~130
In an effort to produce high quality Angelica gigas NAKAI in the southern area of Korea, a variety of mulching materials were used to prevent withering during the summer. The experimental results are summarized as follows. Soil water content and temperature under various mulching materials were higher than those without mulching, in all the cases studied. Among various mulching materials P. E.(polyethylene) mulching material showed the highest effect. The appearance of weeds was the lowest when using the black P. E. mulching, while growth of weeds was the greatest when using transparent mulching. Growth and development of the plant were better with P. E. mulching than straw mulching or no mulching, allowed for more and bigger leaves. The bolting rate was about 2∼5%, with a slightly larger value under P. E. mulching. Under P. E. mulching, probably due to good physical properties of the soil the number of roots was large, and the length and diameter were good. Active growth of roots under P. E. mulching resulted in a yield increase of the plant. The black P. E. mulching material showed a prominent effect on suppression of weed growth, and the black P. E. material was considered to be the most recommendable among various P. E. mulching materials when there is a lack of labor.
Effect of Simulated Acid Rain on Water Status and Growth of Glycine soja S. et. Z.
Korean Journal of Plant Resources, volume 13, issue 2, 2000, Pages 131~139
The effects of the simulated acid rain on the growth response and water status of Glycine soja was observed in 2 months-old seedlings. The seedlings were treated with acid rain(pH 3.5), three times per week. Glycine soja showed significant reduction in the total length, total weight, dry weight, water contents and top/root ratio after treatment of simulated acid rain(pH 3.5) for 56 days. The growth of shoot was more susceptible to acid rain than that of roots. On the contray, Number of lateral roots, water saturation deficit and epidermis transpiration was higher than that of control(pH 5.6) after 56 days treatment of simulated acid rain.
Effect of cutting type, growth regulators and propagation media on rooting and root growth of on Rosa davurica
Korean Journal of Plant Resources, volume 13, issue 2, 2000, Pages 140~146
This study was conducted to determine the effect of cutting type, growth regulators and propagation media on the rooting and root growth of Roea davurica
. Three type of cutting, hardwood, half-softwood, softwood cutting and root cutting of Rosa davurica
, were used to study the rooting ability. There was no rooting in hardwood cutting while root cutting was appeared 100% of callus formation and rooting. The optimum conditions of softwood cutting for rooting were IAA 100ppm and rooton-F at vermiculite+perlite. The rate of rooting in treatment of rooton-F ranged from 10 to 60%, but such a good effect was not appeared in other growth regulators, IAA, NAA and IBA.
Study on Prevention of Foreign Material Formation in Sclerotium of Poria cocos.
Korean Journal of Plant Resources, volume 13, issue 2, 2000, Pages 147~153
Experiments were carried out to determine the effects of culturing conditions DCI(Day required for Colonization after Inoculation), CR(Contamination Rate), MD(Mycelial Density), DPI(Day required for Primordial sclerotia formation after Inoculation), yields, and degree of the foreign materials formations in Poria cocos sclerotia. The upper and bottom side of wood logs were covered with gauze, rice hull and floating leaves, vinyl, or covering cloth in order to prevent foreign material formations in p. cocos. The major results were positive in the order of rice hull, floating leaf, vinyl, gauze, and covering cloth covered and dwindled. In case of the upper and bottom sides of the wood logs covered with rice hull, DCI required 50 days more when compared with the control group(45 days) and CR was 0%, while the control group showed 2% CR. MD was excellent in case of conventional methods as against control's. DPI required 17~20 days less when compared with the control group(82 days). Yields of p. cocos in case of the upper and bottom side of wood logs covered with rice hull were 5.87kg, which is 35.7% higher than that of the control group(4.33kg), and 5.62kg in the case of upper sides cover only(increased by 29.8% compared with control), and 5.59kg in the case of bottom side cover only(increased by 29.1% compared with control), and foreign materials were none. In a separate experiment, where the upper and bottom sides of wood logs were covered with rice hull to prevent the foreign material formation, the results were as follows : Sclerotia formation status and quality of P. cocos were effective in the order of 20cm, 40cm, and 60cm of buring depth and dwindled. In 20cm of burying depth, DCI was shortened by 5 days and CR was none, while the control group showed 2% CR. MD was remarkably fine at the mulched conditions. DPI was shortened by 20 days when compared with the control(62 days).