• Korean Journal of Plant Resources
• /
• v.17 no.2
• /
• pp.169-182
• /
• 2004

The purpose of this study is carried out accurately to grasp the vascular plants in Mt. Bakdal (825 m of sea level), Goesan-gun, Chungcheongbuk-do. In the results of survey from October, 2000 to August, 2001, the vascular plant species in Mt. Bakdal were summarized as 458 taxa; 91 families, 275 genera, 391 species, 62 varieties and 5 forms. The rare plants designated by Korea Forestry Service were six species; Lilium distichum, Iris uniflora var. carisina, Hylomecon hylomeconoides, Viola albida, Scopolia japonicus and Scrophularia koraiensis. And the endemic plants were seventeen species; Melandryum seoulense, Aconitum pseudo-laeve var. erectum, Hylomecon hylomeconoides, Spiraea prunifolia for. simpliciflora, Rubus hongnoensis, Gleditsia japonica var. koraiensis, Lespedeza ${\times}$ tomentella, Vicia venosa var. cuspidata, Vicia venosissima, Tilia taquetii, Ajuga spectabilis, Paulownia coreana, Scrophularia koraiensis, Weigela subsessilis, Lonicera subsessilis, Cirsium setidens and Saussurea seoulensis. The sixteen species were recorded in the surveyed sites as the naturalized plants; Rumex acetocella, Rumex crispus, Fallopia dumetora, Chenopodium glaucum, Amaranthus retroflexus, Robinia pseudo-acacia, Amorpha fruticosa, Trifolium repens, Abutilon avicennae, Hibiscus trionum, Oenothera odorata, Oenothera lamarckiana, Erigeron annuus, Erigeron canadensis, Bidens frondosa and Carduus crispus.

• KOREAN JOURNAL OF CROP SCIENCE
• /
• v.57 no.4
• /
• pp.365-372
• /
• 2012

Native of soybean aphid (Aphis glycines Matsumura) is an Asia and aphid is one of the dangerous pests in soybean [Glycine max (L.) Merr.]. High density aphid populations can reduce crop production by causing severe damage. The objective of this study was evaluation of resistance to the soybean aphid in soybean cultivars and germplasms. A total of fifty five soybean cultivars or germplasms, including two susceptible and two resistant check varieties, were infested to evaluate their resistance in the field cage and greenhouse test by aphid colonies which derived from wild collected one soybean aphid biotype in Korea. The average number of reproduced soybean aphid was evaluated with 62.7 aphids in the resistant check variety PI 567598B and also estimated with 1,807 aphids for susceptible check variety Williams 82. In soybean varieties and germplasms, the average reproduced soybean aphid populations ranged from the lowest 497 aphids for Junjeori to the highest 3,862 aphids for Mansu. About seventy six percent of soybean cultivars and germplasms were shown high density soybean aphid populations when compared with another susceptible check variety PI 567543C in the field cage test. From the greenhouse test to evaluate aphid index, 87.3% of soybean cultivars or germplasms presented aphid index with 9.0. No soybean cultivars and germplasms were observed with soybean resistant phenotype when regarded a aphid resistant level as less than 10% aphid reproductions compared with susceptible check Williams 82. Although no Korean soybean cultivars were identified with resistant trait to the soybean aphid, we found one great resistant genetic resource PI 567598B in this study. This result will be helpful to further study for providing useful genetic information for soybean researchers.

• Korean Journal of Plant Taxonomy
• /
• v.43 no.4
• /
• pp.285-295
• /
• 2013

The genus Actinidia has been recorded as having total six taxa, composed of four species and two varieties, in Korea. However, its taxonomy remains complex because of disagreement on taxonomic characters used for species boundaries. Based upon morphological, anatomical, and palynological characters, we re-evaluated species delimitations in the genus Actinidia. Critical observation of wild populations and extensive herbarium materials including types were also carried out. It is generally considered that leaf thickness and shape, hair type and color were important diagnostic characters to identify species, but these characters were insufficient to be diagnostic characters because of their wide variation ranges. On the other hands, pith pattern, winter bud protrusion rate, scale leaf number, anther color, fruit shape, and maturity season were taxonomic significance. A. arguta var. platyphylla and A. arguta var. rufinervis have been identified by hair type and color, but these characters showed continuous variation in A. arguta. Therefore, two varieties are treated as synonyms of A. arguta. Consequently four species are recognized in Korea: A. polygama, A. kolomikta, A. rufa, and A. arguta. A key is provided, as well as complete descriptions of the species examined, including information on nomenclatural types, and synonymies.

• Journal of the Korean Society of Environmental Restoration Technology
• /
• v.9 no.4
• /
• pp.13-23
• /
• 2006

The vascular plants of the studied area in the Mt. Bangjang was listed 422 taxa : 106 families, 299 genera, 372 species, 1 subspecies, 46 varieties and 3 forms. Based on the list of the rare plants by the Forest Research Institute, 5 taxa were recorded in the studied areas; Lilium distichum(Preservation priority order : No. 159), Tricyrtis dilatata (No. 97), Aristolochia contorta (No. 151), Prunus yedoensis (No. 110), Patrinia saniculaefolia (No. 122) and based on the list of Korean endemic plants, 9 taxa were recorded; Cephalotaxus koreana, Carex okamotoi, Populus tomentiglandulosa, Salix purpurea var. japonica, Prunus yedoensis, Forsythia koreana, Paulownia coreana, Weigela subsessilis, Patrinia saniculaefolia. Specific plant species by floral region were total 29 taxa; Prunus yedoensis in class V, 3 taxa(Acer palmatum, Asperula lasiantha, Lonicera subhispida ) in class III, 5 taxa(Lilium distichum, Potentilla dickinsii, Caryopteris incana, Patrinia saniculaefolia, Ligularia fischeri) in class II, 20 taxa(Ulmus parvifolia, Clematis patens, Aconitum jaluense, Ilex macropoda, Grewia biloba var. parviflora etc.) in class I. The naturalized plants in this site were 13 families, 31 genera, 36 species, 2 varieties, 38 taxa and naturalization rate was 9.0% of all 422 taxa vascular plants. Because of recent rapid increase of cars and people around here, analysis shows many naturalized plants and high naturalized ratio. And wild plants disturbing ecosystem like Ambrosia artemisiifolia var. elatior have been increasing. So, it needs continuing control and conservation measures on the plant ecosystem.

• Journal of the Korean Society of Environmental Restoration Technology
• /
• v.12 no.1
• /
• pp.101-110
• /
• 2009

The vascular plants in the Mt. Hoemun were listed 541 taxa composed of 113 families, 354 genera, 473 species, 1 subspecies, 64 varieties and 3 forms. Divided into 541 taxa; woody plants were 151 taxa (27.9%) and herbaceous plants were 390 taxa (72.1%). Based on the list of rare plants by the Korea Forest Service, 10 taxa were recorded in the studied areas; Lilium distichum (Preservation priority order: No. 159), Lilium callosum (No. 191), Tricyrtis dilatata (No. 97), Iris ensata var. sponianea (No. 197), Gastrodia elata (No.9), Aristolochia contorta (No. 151), Paeonia obovata (No. 30: Legal protection species), Prunus yedoensis (No. 110 : Planted species), Viola albida (No. 202), Schpolia japonica (No. 208). Based on the list of Korean endemic plants, 15 taxa were recorded; Cephalotaxus koreana, Lilium amabile, Salix purpurea var. japonica, Pseudostellaria multiflora, Aconitum pseudolaeve var. erectum, Filipendula glaberrima, Weigela subsessilis, etc. Based on the list of approved for delivering overseas of plants, 10 taxa were recorded; Carex okamotoi, Lilium distichum, Clematis trichotoma, Vaccinium oldhami, Paulownia coreana, Asperula lasiantha; etc. Specific plant species by floral region were total 4S taxa (8.3% of all 541 taxa of vascular plants); Gastrodia elata, Paeonia obovata in class V, Carex arenicola, Corydalis grandicalyx in class IV, 5 taxa (Spiraea salicifolia, Schpolia japonica, Asperula lasiantha, etc.) in class III, 7 taxa (Lilium distichum, Iris ensata var. spontanea, Caryopteris incana, etc.) in class II and 28 taxa (Camptosorus sibiricus, Orixa japonica, Lonicera praeflorens, etc.) in class I. The naturalized plants in the surveyed sites were 13 families, 38 genera, 43 species, 2 varieties, 45 taxa (Phleum pratense, Medicago sativa, Sonchus asper, etc.) and naturalization rate was 8.3% of all 541 taxa of vascular plants. Ambrosia artemisiifolia var. elatior an ecosystem disturbing wild plants have been increasing. Therefore, the counter plants for continuous control and conservation are needed on the ecosystem of Mt. Hoemun.

• Korean Journal of Environment and Ecology
• /
• v.19 no.1
• /
• pp.31-45
• /
• 2005

This study was carried out to investigate the vascular plants of the construct-reserved sites of ecological forests in Deokdong-ri, Baekwoon-myeon, Jecheon-si, and Chungcheongbuk-do, Korea and the period was from March to October, 2004. The results of surveying the vascular plants were recorded as 371 taxa; 83 families, 238 genera, 324 species, 44 varieties and 3 forma. There were 4 species of rare and endangered plants as designated by Korea Forest Service; Eranthis stellata, Paeonia japonica, Viola albida and Scopolia japonica. There were 9 species of Koreanendemic plants Pseudostellaria coreana, Melandryum seoulense, Clematis trichotoma, Deutzia coreana, Spiraea prunifolia for. simpliciflora, Ajuga spectabilis, Weigela subsessilis, Cirsium setidens and Saussurea nutans. Ten species of naturalized plants were observed Panicum dichotomiflorum, Rumex crispus, Amaranthus retroflexus, Lepidium apetalum, Trifolium repens, Oenothera Jamayckiana, Erigeron annuus, Erigeron canadensis, Bidens frondosa and Taraxacum officinale. In the results of analysis by floristic region, the specific plants were summarized as 52 taxa; 30 families, 47 genera, 49 species and 3 varieties.

• Journal of Environmental Science International
• /
• v.16 no.10
• /
• pp.1139-1146
• /
• 2007

The vascular plants in the Mt. Manduk was listed 560 taxa composed of 110 families, 345 genera, 488 species, 1 subspecies, 67 varieties and 4 forms. Based on the list of the rare plants by the Forest Research Institute, 4 taxa were recorded in the studied areas; Lilium distichum (Preservation priority order; No. 159), Tricyrtis dilatata (No. 97), Aristolochia contorta (No. 151) and Prunus yedoensis (No. 110). Based on the list of Korean endemic plants, 12 taxa were recorded; Cephalotaxus koreana, Carex okamotoi, Lilium amabile, Populus tomentiglandulosa, Salix purpurea var. japonica, Pseudostellaria multiflora, Prunus yedoensis, Stewartia koreana, Forsythia koreana, Paulownia core ana, Weigela subsessilis and Aster koraiensis. Based on the list of approved for delivering overseas of plants, 7 taxa were recorded; Carex okamotoi, Lilium distichum, Aristolochia contorta, Vaccinium oldhami, Paulownia coreana, Asperula lasiantha and Saussurea seoulensis. Specific plants by floral region were total 32 taxa; Prunus yedoensis in class V, Wistaria floribunda in class IV, 5 taxa (Girardinia cuspidata, Spiraea salicifolia, Acer palmatum, Stewartia koreana, Asperula lasiantha) in class III, 3 taxa (Potentilla dickinsii, Viola tokubuchiana var. takedana and Caryopteris incana) in class II and 22 taxa (Pinus koraiensis, Hosta capitata, Chloranthus japonicus, Salix glandulosa, Juglans mandshurica, etc.) in class I. The naturalized plants in the surveyed sites were 14 families, 36 genera, 44 species, 2 varieties, 46 taxa and naturalization rate was 8.2% of all 560 taxa of vascular plants. Wild plants disturbing ecosystem like Ambrosia artemisiifolia var. elatior have been increasing. Therefore, continuous control and conservation measures are needed on the ecosystem of Mt. Manduk.

• Korean Journal of Environment and Ecology
• /
• v.22 no.2
• /
• pp.138-144
• /
• 2008

The Specific Plant Species such as N degree (2 species) and V degree (5 species) which is categorized by the Ministry of Environment are appeared as 7 species. II degree species among Endangered species of wild flora is Abeliophyllum distichum, and the Rare and Endangered Species which is categorized by the Korea Forest Service are enlisted as the five taxa. The Bukhansan is one of the phytogeographic ally important areas among national parks of Korea because this region is located in the northern limit of Southern Plant Types, such as Carpinus laxiflora, Cornus kousa, Styrax japonica and Zanthoxylum piperitum. The flora of the area was enlisted as 638 taxa, 103 families, 362 genera, 541 species, 87 varieties, and 10 forms. Naturalized Species was identified as 58 taxa, 16 families, 52 genera, 54 species and 4 varieties. The Ratio of Naturalized and Urbanization Index was 9.09% and 20.21%, respectively.

• KOREAN JOURNAL OF CROP SCIENCE
• /
• v.33 no.s01
• /
• pp.39-47
• /
• 1988

Soybean grain is most widely used and soybean crop produces most high protein per area among crops. To meet rapid increase of human population and supply protein in safety. soybean has considered more and more important crop. And it has been emphasizing that high quality and high protein soybean breeding must be made efforts in future. Many papers related to soybean breeding for high quality and protein and soybean protein composition have suggested the problems to do in future. Soybean germplasm collection. classification and conservation should be continuously performed, and it is emphasized that wild type of soybeans (G. soja) be considered to use in breeding for high protein varieties. Selections would be better emphasized in first yield and therefore high yield of protein per area. Selection for high protein would be secondary criterion. High protein lines with high yielding potential could be selection from certain populations, and breeders should consider this phenomenon in procedure of selection. Heritability of protein percent is relatively high and genetic gain of increment of protein percent is large. Soybean protein which is comprised 70 to 90% of globulin is constituted mostly 11S and 7S proteins. Sulfur-containing amino acids, methionine and cysteine, are identified to contain more in 11S protein than 7S protein. High 11S germplasm should be desirable to use in crossing plan, and selection of high ratio of 11S/7S lines be better in development of high quality varieties.

• Journal of Environmental Science International
• /
• v.12 no.12
• /
• pp.1207-1213
• /
• 2003

Osancheon creek is located in the southwest of the middle area in Korea. Weed community around the Osancheon creek, where various disturbances exert a bad influence directly on its community by human work or nature, was surveyed phytosocialogically. Our surveys have been accomplished from June, 2003 to September, 2003. Weed communities formed around the Osancheon creek were divided into several patterns and analysed. They have been divided into 8 communities. Community A: Humulus japonica community, B: Phragmites communiscommunity, C: Persicaria thunbergii community, D: Zi=ania latifolia community, E: Miscanthus saccharilflorus community, F: Echinochica crusgalli community, G: Typha orientalis community, H: Sataria viridis community. The flora surveyed in these communities was constituted of 19 families, 36 genera, 4 varieties, and 40 species. Wild plants such as Artemisia princeps var. orientalis Erigeron annuus, Bidens frondosa, Aeschynomene indica and Oenothera odorata were mostly light loving plants and higher resistant plants against the disturbance. Our result from the ranking all surveyed areas by the Bray-Curtis ordination method was very similar to the results from phytosocialogical table work.