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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 24, Issue 6 - Dec 2011
Volume 24, Issue 5 - Oct 2011
Volume 24, Issue 4 - Aug 2011
Volume 24, Issue 3 - Jun 2011
Volume 24, Issue 2 - Apr 2011
Volume 24, Issue 1 - Feb 2011
Selecting the target year
Plant Regeneration from the Segments of Petioles of Cacalia firma
Choi, Soo-Wan ; Lim, Soon ; Park, Wan-Geun ; Choi, Yong-Eui ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 483~488
DOI : 10.7732/kjpr.2011.24.5.483
Cacalia firma recently has been used increasingly as leaf vegetables but endangered in natural forest. In this work, we established the plant regeneration via adventitious shoot formation from petiole segments of seedling and in vitro plantlets. Wounding of seed coats and
treatments were effective to induce in vitro germination of seeds, whereas, seed did not germinate at all without these treatment. When cotyledon, leaf, petiole, and root segments of seedling were cultured on medium with 2
benzyl adenine (BA) and 0.5
naphthaleneacetic acid (NAA), petiole segments showed highest number of shoots per explant among the other segments. Among the various kinds of cytokinins, BA, isopentyl adenine (2-ip), kinetin, zeatin, thidiazuron (TDZ), TDZ and BA treatments were effective to induce high frequency of adventitious shoot formation from petiole segments of in vitro propagated plants. NAA stimulated the frequency of adventitious shoot formation but not for number of adventitious shoots per explants compared to TDZ or BA treatment alone. Most of adventitious shoots were developed directly from surfaces of explants. Adventitious shoots were transferred on medium with IBA for root formation, thereafter the plantlets were successfully transferred to soil.
Distribution and Management of Naturalized Plants in the Eastern Area of Jeollanamdo, Korea
Park, Moon-Su ; Lim, Dong-Ok ; Kim, Ha-Song ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 489~498
DOI : 10.7732/kjpr.2011.24.5.489
This study was carried out to investigate the distribution status and urbanization index of the naturalized plants. For this purpose, 7 cities and counties in the eastern area of Jeollanamdo were selected and investigations were conducted on a total of 14 sites, during the period of March 2006 to November 2008. The naturalized plants were identified as 123; 22 families, 75 genera, 118 species, and 5 varieties. As for the urbanization index, Suncheon city had the highest level of urbanization (33.45%) and Gurye county the lowest level of urbanization (20.21%). Classification families were as follows: Compositae 40 kinds (30.1%) Gramineae 17 kinds (12.8%) and Leguminosae 14 kinds (10.5%). Major communities of naturalized plants consisted of 20 communities including Erigeron annuus community, Erigeron canadensis community, Alnus firma community, Amorpha fruticosa community, Oenothera odorata community, Bidens frondosa community, Coreopsis tinctoria community, Ambrosia artemisiifolia var. elatior community etc. Invasive naturalized plants consisted of 5 taxa: Ambrosia artemisiifolia var. elatior, Ambrosia trifida, Eupatorium rugosum, Paspalum distichum var. indutum and Paspalum distichum. The distributional characteristics of naturalized plants were divided on the basis of six areas associated with ecological characteristics of a habitat.
Research on the Colorants Extraction from Black Cowpea Seed Coats and their Storage Stability
Jung, Yang Sook ; Choi, Kyung-Jin ; Kang, Hang-Won ; Bae, Do-Gyu ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 499~506
DOI : 10.7732/kjpr.2011.24.5.499
The purpose of this study was to search available resources for new natural colorants. The extraction efficiency of colorants from black cowpea seed coats and their storage stability were examined according to the various extraction and storage conditions in this study. The results obtained were as follows: the optical density (O.D.) values of the extracted colorants increased with increasing extract time and temperature. Extraction at pH 4 was seen to be the most efficient among the various pH conditions. The color of the extract solutions were seen to change with variation in pH, for example, anthocyanins display color changes from orange-red, to orange, to blue, to greenish-blue at pH 3.0, 4.0-6.0, 7.0 and 9.0-11.0, respectively. The color changes of the extract solutions over various storage periods were determined using UV/Vis spectra these color changes indicate characteristic absorption patterns and a discoloration index which indicates the rate of absorbance (532 nm/454 nm). Methionine addition influenced the storage stability of the colorant solutions and this addition led to better storage stability than non-addition. In paper chromatography of juice extracted colorant, a long stripe was seen on development. Among three colorants obtained via paper chromatography according to development rate, at least two different colorants were mixed indicated by the appearance, or not, of a shoulder at 552 nm depending on the extent of development.
Effect of Mulching Material and Planting Density on Growth and Bulb Development of Shallot (Allium cepa var. ascalonicum Backer)
Cho, Yong-Cho ; Lee, Jong-Tae ; Park, Yoo-Gyeong ; Jeong, Byoung-Ryong ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 507~513
DOI : 10.7732/kjpr.2011.24.5.507
This study was conducted to evaluate the effect of mulching material and planting density on growth and bulb development of shallot. The transparent PE film was better than black PE film as a mulching material for the overwintering shallot crop. Transparent PE film mulching promoted plant growth and increased marketable yield by 21% as compared with that of the black PE film-mulched crop. However, the bulb size was not significantly affected by the type of mulching film. The height and width of ridge and planting density significantly affected the growth and bulb yield of the moisture sensitive shallot. Bulb yield of the shallot planted in five rows in 120 cm wide ridges (20,833 plants per 10 a) was 1,332 kg per 10 a, which was 1.7 times as high as that by the crop grown in three rows in 120 cm wide ridges (12,500 plants per 10 a). In conclusion, the shallot crop is recommended to be cultivated in five rows in 120 cm ridges mulched with the transparent PE film.
Mass Production of Gain-of-Function Mutants of Hairy Roots in Catharanthus roseus
Ko, Suk-Min ; Chung, Hwa-Jee ; Lee, Hyo-Yeon ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 514~520
DOI : 10.7732/kjpr.2011.24.5.514
This study describes conditions for the mass production of mutant hairy root lines by co-cultivation with A. rhizogenes harboring the activation tagging vector pHC7. Various sources of explants were subjected to genetic transformation with A. rhizogenes to determine optimum conditions and cultivar for the highest frequency of hairy root formation on explants. Hairy root formation also were investigated in transformed hairy roots grown in various culture media. Finally, a total of approximately 2,500 lines of hairy root mutants were produced in this study. A managing system for metabolomics in hairy root lines also were established. These hairy root lines will be useful to determine functions of genes relating biosynthesis pathway of secondary metabolites.
The Vascular Plants in Mt. Gahyeon (Gyeonggi-do, Gimpo)
Kim, Jung-Hyun ; Park, Jin-Ryang ; Kim, Sung-Ho ; Yoon, Chang-Young ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 521~539
DOI : 10.7732/kjpr.2011.24.5.521
This study was carried out to investigate the flora of Mt. Gahyeon (Gyeonggi-do, Gimpo). The vascular plant were collected 13 times (from March to Oct. 2010), and 413 taxa in total were identified, including 96 families, 267 genera, 362 species, 6 subspecies, 40 varieties and 5 forms. Among them were 6 taxa of Korean endemic plants and 17 taxa of specially designated plants by the Ministry of Environment. Usage of 413 taxa were consists of 159 taxa (38.5%) of edible plants, 122 taxa (29.5%) of medicinal plants, 77 taxa (18.6%) of pasture plants, 47 taxa (11.4%) of ornamental plants, 26 taxa (6.3%) of stainable plants, 14 taxa (3.4%) of timber plants, 6 taxa (1.5%) of fiber plants, 5 taxa (1.2%) of industrial plants and 102 taxa (24.7%) of unknown resource plants, respectively. The naturalized plants were identified as 41 taxa and the percent of naturalized index (NI) was 9.9% of total 413 taxa vascular plants. Furthermore, therophytes (27.1%), hemicryptophytes (26.4%), geophytes (14.7%) showed high proportional ratio in life form spectrum.
Analysis of Leaf Morphological Variation of 11 Natural Populations of Acer pictum subsp. mono (Maxim.) Ohashi
Song, Jeong-Ho ; Hur, Seong-Doo ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 540~548
DOI : 10.7732/kjpr.2011.24.5.540
Characteristics of leaf morphology was examined in 11 natural populations of Acer pictum subsp. mono (Maxim.) Ohashi in Korea. Nested Anova showed that there were statistically significant differences among populations as well as among individuals within populations in all 14 quantitative characters. In all the leaf characters, variance components among individuals within populations were higher than those among populations. Some morphological characters such as the ration of Blade length to Petiole length (0.90), Uower lobe width (0.85), Blade length (0.83), and Middle lobe width (0.83) showed the relative high differences in the values of differentiation (Dij) among populations. Of the ten populations, Gwangyang (1.36) and Cheongyang (1.30) were highly differentiated based on the total mean Dij of fourteen morphological characters, while Ulju (0.30) and Jeongseon (0.44) were scarcely differentiated.
Plant Phenology of Threatened species for Climate change in Sub-alpine zone of Korea - Especially on the Summit Area of Mt. Deogyusan -
Kim, Hyuk-Jin ; Hong, Jeong-Ki ; Kim, Sang-Chul ; Oh, Seung-Hwan ; Kim, Joo-Hwan ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 549~556
DOI : 10.7732/kjpr.2011.24.5.549
We investigated the plant phenology on the threatened species for climate change in the summit area of Mt. Deogyusan which is a representative sub-alpine zone in Korea. We had performed the monitoring survey of plant phenology on 38 species including 20 trees and 18 herbs from May 2009 to November 2010. The investigated phenological charateristics were five dates for leafing, flowering, floral abscission, autumn leaf colors and leaf abscission on each plant species in sub-alpine region. The climate data were measured from November 2009 to December 2010. The range of temperature was from 30.4 to -
at Hyangjeokbong to Jungbong region, and the relative humidity was 100% to 3.4%. The leafing dates in 2010 were similar to 2009 or were 6-20 days delayed in most of the investigated species except Veratrum oxysepalum and Sanguisorba hakusanensis which showed 8 days earlier leafing dates in 2010. The biggest difference among phenological characters was found in flowering dates. The flowering dates of early Spring blooming species such as Heloniopsis koreana, Rhododendron yedoense for. poukhanense and Viola orientalis showed 13-20 days earlier in 2010, and the several summer flowering species as Viburnum opulus var. calvescens, Smilacina japonica and Bupleurum longeradiatum showed 6-10 days delay in 2010. The dates for floral abscission and autumn leaf colors in 2010 were delayed about 10-18 days, and leaf abscission dates were similar to 2009. The effects of climate change on the phenology for the threatened species in sub-alpine zones of Korea are occuring especially on flowering, floral abscission and autumn leaf colors.
Anti-tumor Activity of Saponin Fraction of Platycodon gradiflourm through Immunomodulatory Effects associated with NO production in RAW264.7 cells
Choung, Myoung-Gun ; Sohn, Eun-Hwa ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 557~563
DOI : 10.7732/kjpr.2011.24.5.557
Platycodon grandiflorum (Korean name, Doraji) has been widely used in traditional herbal medicine as an expectorant for pulmonary disease and a remedy for respiratory disorders in Asia. Here, we investigated the effects of BtOH extract saponin fraction of P. gradiflourm (PGS) on phagocytosis and anti-tumor activity with related cytokine productions in RAW264.7 macrophage cells. The results showed that PGS increased phagocytosis, anti-tumor activity, TNF-
and nitric oxide (NO) production without direct tumor cell cytotoxicity. To further investigate whether NO is involved in anti-tumor and phagocytic activities of PGS, cells were co-treated with specific iNOS inhibitors, L-NIL (N6-(1-iminoethyl)-L-lysine, dihydrochloride), to block NO production. PGS decreased anti-tumor activity in L-NIL-treated cells, whereas phagocytic activity was not inhibited under the same conditions, indicating that the anti-tumor activity by PGS appears to be conducted by NO. These findings suggest that P. grandiflorum could be used a potential nutrition therapeutic agent for cancer patients.
Flora of Gitdae-bong (Gapyeong-gun, Gyeonggi-do)
Lee, Sun-Kyoung ; Han, Jun-Soo ; Yoo, Ki-Oug ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 564~583
DOI : 10.7732/kjpr.2011.24.5.564
The flora of Gitdae-bong area were investigated from March, 2009 to September, 2010. The vascular plants were summarized as 435 taxa; 90 families, 272 genera, 380 species, 3 subspecies, 45 varieties, and 7 forma. Among the investigated 435 taxa, twelve Korean endemic, eight rare plants and 68 specially designated plants by Ministry of Environment were also included. The naturalized plants were 15 taxa and percent of naturalized plant species was 3.4%. Usefulness of plants of 435 taxa listed consists of 203 taxa (46.7%) of edible plants, 141 taxa (32.4%) of medicinal plants, 64 taxa (14.7%) of pasture plants, 44 taxa (10.1%) of ornamental plants, 18 taxa (4.1%) of timber plants, 15 taxa (3.4%) of fiber plants and 4 taxa (0.9%) of industrial plants.
Genetic Variation of Cytochrome P450 Genes in Garlic Cultivars
Kwon, Soon-Tae ; Kamiya, Juli ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 584~590
DOI : 10.7732/kjpr.2011.24.5.584
Wound inducible P450-Esg cDNA, one of cytochrome P450 gene family, was isolated from shoot of Euiseong garlic cultivar. P450-Esg cDNA possesses highly conserved heme-binding domain in the nucleotide sequence, and 1,419 bp of open reading frame (ORF) coding of 473 amino acids. Based on the nucleotide sequence analysis of P450-Esg homologous from twelve garlic cultivars, two domains, one domain between 472 to 510 bp, and the other between 1,210 to 1,249 bp from start codon (ATG), showed various nucleotide polymorphism among cultivars. Sequence of heme-binding domain in P450-Esg homologous, which is located at the domain between 1,210 to 1,240 bp from start codon, showed various nucleotide polymorphism as well as amino acid sequence polymorphism among twelve garlic cultivars. Anther domain, between 472 to 510 bp from start codon, showed exactly same amino acid sequence in the twelve garlic cultivars, but there were various single nucleotide polymorphism to the cultivars.
Effect of Plant Growth Regulators on in vitro Cultured Atractylodes Hybrid 'Dachul' (A. macrocephala x A. japonica)
Koo, Woo-Li ; Cho, Joon-Hyeong ; Park, Chun-Geon ; Ahn, Young-Sup ; Park, Chung-Berm ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 591~598
DOI : 10.7732/kjpr.2011.24.5.591
This study was conducted to establish the tissue culture system for Atractylodes plant which is most frequently used in oriental medicine. Root and auxiliary bud of Dachul cv., which is Atractylodes hybrid (A. macrocephala x A. japonica), were used as target tissues for in vitro culture. In root culture, callus induction rate was higher in the treatment of BAP combined with NAA than others, however, 2-iP was more effective for callus proliferation and root induction. Although calli were effectively induced from the root and proliferated in lower concentration of cytokinin combined with higher auxin, root tissue was inappropriate for shoot regeneration. For plant regeneration with axillary bud, BAP combined with NAA was more effective than 2-iP with NAA or IBA. Number of regenerated plant per bud was 3.8, which was highest, and stem diameters was shown as 5.0mm under the conditions of 1 mg/L BAP combined with 1 mg/L NAA. Although, plant height was tend to be higher in 2-iP than BAP, number of the regenerated plant was lower via versus. Furthermore, root proliferation of regenerated plant was more effective in higher concentration of sucrose (7%) than in lower concentration (3%). In results, auxiliary bud was an efficient target tissue for producing regenerated plant of Atractylodes under the conditions of 1 mg/L BAP combined with 1 mg/L NAA and higher concentration of sucrose was effective for root proliferation of regenerated plants.
Incidence Rates of Postharvest Fruit Rots and Detection Rates of Their Pathogens on New Kiwifruit Cultivars Bred in Korea
Kwon, Shin-Young ; Kim, Gyoung-Hee ; Koh, Young-Jin ; Lee, Young-Sun ; Shon, San-Ho ; Kim, Seong-Cheol ; Jung, Jae-Sung ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 599~603
DOI : 10.7732/kjpr.2011.24.5.599
The incidence rates of postharvest fruit rots of four kiwifruit cultivars which were cultivated under rain-proof tunnel house at a same orchard were examined. Among them, 'Halla-Gold', 'Jecy-Gold' and 'Jecy-Sweet' were new cultivars bred in Korea. The disease incidence was varied with cultivars; 74.8%, 65.3%, 57.1% and 16.2% for 'Hayward', 'Halla-Gold', 'Jecy-Sweet' and 'Jecy-Gold' cultivars, respectively. Two hundred and eighteen isolates were obtained from diseased fruits and identified by mycological and molecular biological methods. Three fungi, Botryspheria dothidea, Diaphorthe actinidiae and Botrytis cinerea, were identified as pathogens of the postharvest fruit rots with detection rates of 95.4%, 4.6% and 2.3%, respectively.
Effects of Ixeris dentata extract on the production of pro-inflammatory cytokines in the LPS stimulated rat and Raw 264.7 cells
Lee, Eun ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 604~612
DOI : 10.7732/kjpr.2011.24.5.604
The purpose of this study was to investigate anti-inflammatory effect of Ixeris dentata ethanol extract in lipopolysaccharide-exposed rats and Raw 264.7 cells. Plasma concentrations of IL-
, IL-6 and TNF-
were lower in Ixeris dentata-treated groups than in control group. Concentration of plasma IL-10 was higher in Ixeris dentata-treated groups than in control group. Concentrations of liver IL-
and IL-6 were lower in the Ixeris dentata-treated groups than in control group. However, concentrations of liver TNF-
and IL-10 were not significantly different among all treatment groups. In the study using lipopolysaccharide-exposed Raw 264.7 cells, concentrations of IL-
, IL-6 and TNF-
tended to be decreased, but concentration of IL-10 tended to be increased in Ixeris dentata-treated groups. Plasm concentrations of total protein and albumin appeared to be increased in Ixeris dentata-treated groups.
Effects of Shading Degree and Substrate Component on Early Growth and Physiological Activity of Panax ginseng Grown under Plastic House
Chon, Sang-Uk ; Jeong, Sun-Mok ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 613~621
DOI : 10.7732/kjpr.2011.24.5.613
Plastic house and laboratory experiments were conducted to determine the effects of substrate components and shade degrees on plant growth and physiologically-active substance content and antioxidant activity of Panax ginseng. No significant difference in growth characteristics among substrates was observed. However, shade treatment also significantly reduced leaf area, chlorophyll content, root length, and shoot and root fresh weight (P<0.05) with increasing of the degree. Total phenolics level [mg ferulic acid equivalents (FAE)
DW] was higher in root parts (25.8 to 28.4 mg
) than shoot parts (20.7 to 23.8 mg
) of Panax ginseng, and with shade (23.7 to 28.4 mg
) than without shade (20.7 to 25.8 mg
). However, total flavonoids [mg naringin equivalents
DW] was more detected in the shoot part (17.4 to 26.8 mg
) than in the root part (6.7 to 7.0 mg
) of Panax ginseng. Methanol extracts from the Panax ginseng plants dose-dependently increased DPPH free radical scavenging activity as a antioxidant potential, and the activity was higher in shoot parts (31.1 to 36.5%) than in root parts (24.9 to 28.7%), and without shade than with shade. In conclusion, shade affects plant growth as well as physiological activity of Panax ginseng under plastic house condition.
Antimicrobial Activity against Potato Common Scab (Streptomyces scabiei) of Green Manure Crop Extracts
Park, Jong-In ; Jung, Hee-Jeong ; Bae, Yong-Hui ; Kang, Kwon-Kyoo ; Nou, Ill-Sup ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 622~627
DOI : 10.7732/kjpr.2011.24.5.622
This study was designed to investigate the possible role of 10 green manure crop extracts in antimicrobial activity against potato common scab (Streptomyces scabiei). Ten green manure crops were extracted with hexane, ether, ethylacetate, methanol and water. The DPPH radical scavenging activity of ether, methanol and water was higher than those of hexane and ethylacetate fractions. The fractions of methanol, ethylacetate, ether and water showed antimicrobial activity against Streptomyces scabiei from the concentration of 0.25 mg/mL. Methanol fraction of Sorghum showed the highest antimicrobial activity against this microorganism. This result suggests the sorghum extract was the best as good green manure crop with antimicrobial activity against Streptomyces scabiei.
Establishment of Callus Induction and Plant Regeneration System from Mature Seeds of Miscanthus sinensis
Cho, Joon-Hyeong ; Byeon, Ji-Hui ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 628~635
DOI : 10.7732/kjpr.2011.24.5.628
This study was conducted to establish the tissue culture system for Korean domestic Miscanthus sinensis, which is used in various purposes such as forage, and bio-energy resources. With the mature seed of Miscanthus, optimum concentrations of plant growth regulators were identified for an efficient callus induction and regeneration. Among the treatments of 1~10
2,4-D, IBA, or NAA, callus induction rate was highest (85.3%) on MS medium containing 5
2,4-D. Under the condition, the callus were efficiently induced and proliferated with comparably lower frequencies of callus browning. In shoot regeneration, the treatment of NAA combined with BAP seemed to contribute more efficient conditions to shoot regeneration than those of NAA with Kinetin or 2-iP. Especially, regeneration efficiency and number of regenerated plants were 83.7% and 5.5 in 3
NAA with 5
BAP, respectively, which were higher frequencies than those in NAA with Kinetin or 2-iP. In results, 5
2,4-D and 3
NAA combined with 5
BAP were efficient for embryogenic callus induction and regeneration of Miscanthus. This system would be useful for mass-propagation and developing new cultivars via tissue culture of Miscanthus sinensis.
Differences in Soil Improvement Effects of Four Green Manure Crops in Greenhouse Cultivation
Son, Cho-Yee ; Jung, Yu-Jin ; Lee, In-Hye ; Kang, Ui-Gum ; Jeon, Weon-Tai ; Nou, II-Sup ; Kang, Kwon-Kyoo ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 636~641
DOI : 10.7732/kjpr.2011.24.5.636
Four different green manure crops, hairy vetch, Italian ryegrass, crimson clover, orchard grass were cultivated to test the differences in their effects on soil improvement. After plowing to incorporate the green manure crops, tomato plants were grown as a succeeding crop to investigate the effects of green manure on the soil physical properties and plant growths. The experimental results showed that green manure could decrease the soil hardness. Italian ryegrass and hairy vetch as the green manure were especially effective in decreasing the soil hardness. Orchard grass and Italian ryegrass provided more void in soil matrix, resulting increased soil moisture contents. After two months, bulk density was decreased in the plots of Italian ryegrass and orchard grass. However, there were no significant differences between green manure plots and control after the cultivation of the succeeding crop. The results indicated that the growing Italian ryegrass and hairy vetch as green manure helped growing tomato plants. Orchard grass also improved the soil characteristics, comparable to Italian ryegrass in spite of their relatively small biomass.
The Chracterization of Critical Ranges of Soil Physico-chemical Properties of Ginseng Field and Nutrient Contents of Ginseng Leaves in Gyeonggi Province
Jin, Hyun-O ; Kwon, Hyuck-Bum ; Yang, Deok-Chun ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 642~649
DOI : 10.7732/kjpr.2011.24.5.642
Ginseng growth is largely affected by characteristics of soil in Ginseng field. In this study, we determined the critical ranges of physico-chemical properties of soil for optimization of ginseng growth by analyzing the soils from Anseong and Pocheon regions in Gyeonggi province. Fresh weight of ginseng was 2 to 5 fold higher in good growth field compared to poor growth field within Anseong region. In the case of Pocheon region, 1.5 to 2 fold differences of fresh weight of ginseng was observed between good and poor growth field. These results indicate the difference of ginseng growth even in the same region. Based on these results, critical ranges of physico-chemical properties of soils were determined by comparing the good and poor growth field of each regions, which are follows; more than 50% of soil porosity, 2.0~2.8 g/kg of total nitrogen, 500~900 mg/kg for Av.
for Exch. Ca in Anseong; less than 13% of liquid phase, 400~650 mg/kg for Av.
for Exch. Ca, less than 0.8 and 0.5
for Exch. Mg and K, respectively, in Pocheon. Interestingly, we found that ginseng growth was affected by exchangeable base ratio (Ca:Mg:K) especially in Anseong region, which were 6:2:1 in good growth field while 4:2:1 in poor growth field. Critical ranges for nutrient contents of ginseng leaves were also characterized, which are less than 0.2% and 0.22% of each P and Mg, respectively, in Anseong, while less than 1.8% and 0.18% of each N and P, respecively, and 1.5~3.0% of K in Pocheon. In addition, we determined critical ranges for inorganic nutrient contents in the current study.
Genetic Resources Collection of Crop Landrace at Kanghwa, Ulreung and Jeju Islands in Korea
Ahn, Wan-Sik ; Park, Mun-Woong ; Kim, Suk-Ki ; Han, Young-Mi ; Ahn, Cheol-Hwan ; KimHwang, Kyeong-San ; Yoon, Mun-Sup ; Hyun, Do-Yoon ; Baek, Hyung-Jin ;
Korean Journal of Plant Resources, volume 24, issue 5, 2011, Pages 650~658
DOI : 10.7732/kjpr.2011.24.5.650
The 460 collections of 60 crops were collected during 34 days from 28 November to 31 December 2008. The 295 accessions of 43 crops, 49 accessions of 24 crops and 116 accessions of 42 crops were collected in Kangwha, Ulreung and Jeju island in this exploration. Among the total collections, the portion of the food crops, vegetable or ornamental crops and industrial crops were 54.8%, 25.4% and 19.8%, respectively. The farmers conserved 48.4% to 53.6% of the landrace crops for 31 to 50 years. Furthermore, 13.1% to 18.7 % of the collections were cultivated over generation to generation. Most of the crop seeds were conserved by woman farmers aged from 61 to 80 years old. The 82.9% of the seed distributors were also woman farmers, whereas 17.1% was distributed by man farmers.