• Journal of Plant Biotechnology
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• 제34권1호
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• pp.47-53
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• 2007

To assess the risk of genetically modified (GM) rice on the agricultural ecosystem, agronomic characteristics, pollen longevity and outcrossing rate between GM (Iksan 483 and Milyang 204) and non-GM (their wild types and female parents) varieties were investigated using the bar gene as a tracer marker in paddy field. The agronomic characteristics of two GM rice were similar to their female-parents (non-GM rice) except heading date and 1,000 grain weight of Iksan 483, and they did not show a difference by the introgression of the bar gene as the genetic traits of rice varieties. Pollen viability was more than 90% just after shedding, and it was rapidly decreased below 50% at 5 minutes after shedding both GM and non-GM varieties. The Pollen longevity was lost after 30 minutes of anthesis. When the distance of gene flow from GM to non-GM rice detected to 6 m from the edge of GM rice plant, the maximum distance of pollen dispersal was 4.5m and 3.9m in Iksan 483 and Milyang 204, respectively, and that was increased in order of west, south, east, and north to the dominant wind direction, west-south. Mean outcrossing rate was very low as 0.003 and 0.001% within 1.5 m from the edge of Iksan 483 and Milyang 204, and the GM hybrids by the pollen dispersal did not detected over 4.5 m from the edge of GM rice plant. The results may help to establish the strategy which reduce the risk of pollen-mediated gene flow between GM and non-GM rice.

• 한국작물학회지
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• 제44권3호
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• pp.197-200
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• 1999

In order to get abundant germplasm for develop- ing new corn varieties, major morphological characteristics of ear were evaluated with a total of 210 Korean indigenous maize lines collected from various parts of Pusan City and Kyungnam Province, Korea. The ear shape of Korean indigenous maize was mainly cone type or similar to cone type. Cylinder type or similar to cylinder type of corn was collected from the north-west mountainous. region of Kyungnam Province, whereas cone type or similar to cone type was collected from the plain region. In the kernel colors of each ear, ears with mono colored kernels were 55.7% of the total, and ears with two to four mixed colors were 44.3%. Among the mono colored ears, brown was the most abundant at 16.8%. There was an average of 12∼14 rows per ear. Kernal rows per ear varied from 8∼20. Waxy corn was predominant at 67.2%, mixed corn with waxy kernel and common kernel at 11.0%, and common corn at 21.8%.

• 한국자원식물학회지
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• 제34권6호
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• pp.633-660
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• 2021

This study was carried out to elucidate the distribution of vascular plants and their usefulness of Mt. Munsusan (1,205 m) in Bonghwa County, North Gyeongsang Province, South Korea. The vascular plants that were investigated in 2 years (2019 ~ 2020) with 15 times consisted a total of 571 taxa; 94 families, 310 genera, 496 species, 4 subspecies, 63 varieties and 8 formas. For the Korean endemic plants, 17 taxa were recorded and 3 taxa of Vulnerable Species (VU) and 9 taxa of Least Concerned species (LC) categorized by the Korean Forest Service as rare plants were investigated in this region. Furthermore, IV, III degrees of floristic regional indicator plants designated by the Korean Ministry of Environment included 8 taxa and 27 taxa, respectively. Among them, edible, medicinal, ornamental, feed/composting, industrial plants were 391 taxa, 359 taxa, 301 taxa, 241 taxa, 217 taxa, respectively. In addition, 25 taxa of naturalized plants were observed.

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2002년도 추계 학술발표논문집
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• pp.65-68
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• 2002

몇 개 농업관련 시험장에서 북한 벼 품종의 출수반응을 관찰한 결과 북한에서 조생종으로 분류된 품종들은 온도에 민감한 반응을 보여 기준품종인 남한의 오대벼에 비해 출수가 빨랐고, 중생종은 그보다 출수가 늦어 전체적으로 남한 품종의 조만성과 유사하였다 (양 등, 2000). 또한 유전자 분석을 통해 북한품종 및 계통 101개를 남한품종과 비교해 본 결과 40% 유사도 수준에서 남한 품종과 같이 통일형과 자포니까형으로 나눌 수 있었으며, 자포니카형 품종들간 유사도는 80%에 달했다.(정 등, 2001)(중략)

• Journal of Plant Biology
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• 제4권2호
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• pp.33-40
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• 1961

The moss flora and it's geoecological study were made on Mt. Odae which is situated in the easterm part(37$^{\circ}$43'N. Lat., 128$^{\circ}$30' E. Long) of Korea. The total number ofmosses collected on Mt. Odae in the autumn of 1960 is 50 species, 1 varieties and 1 subspecies, belonging to 23 families. For climate index, Warmth index and Humidity index were calculaterd on Mt. Odae. From the result, it was known that the climate of Mt. Odae is Humid temperate climate and that it's vegetation zone is Deciduous broad-leaf forest zone. Moss Quotient of this mountain is 1.21 and it indicates that the plant climate of Mt. Odae is Hemicryptophytic climate. The moss flora of this mountain was discussed from the pnytogeographical point of view. The flora consists of the following elements: Holarctic element : 20 species (38.5%) North Pacific element: 1 (1.9%) Cosmopolian element: 6 (11.6%) Tropical element: 1 (1.9%) East Asiatic element: 12 (23.05%) Korean-Japan element: 12 (23.05%) Coefficient of closeness was also calculated between the moss flora of Mt. Odae and that of Mt. Sulak and Mt. Kwanak. It was known, therefore, that the flora relation between Mt. Odae and the Mt. Sulak was closer than that between Mt. Odae and Mt. Kwanak.

• 식물분류학회지
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• 제40권1호
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• pp.74-77
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• 2010

The Illam district, situated in the extreme North Eastern part (Latitude 26.58N and 87.58E Longitude) of Nepal, is a hot spot for floral diversity. The study of wild edible plants of this region was an attempt to highlight the types of wild flowering plants found there and mode of use by the people of the Illam hills. In this respect, a survey of natural resources of some of the representative regions of the district was undertaken and more than 74 major varieties of plant species were found to be used frequently by the people of the hills. The rich diversity occurring in Dioscoriaceae, Moraceae, Rosaceae, Myrtaceae, Poaceae, Urticaceae and Arecaceae provided the wild angiospermic species commonly used by the people of the hills.

• 대한자원환경지질학회:학술대회논문집
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• 대한자원환경지질학회 2003년도 춘계 학술발표회 논문집
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• pp.330-330
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• 2003

Several volcanics are found within the Tertiary sedimentary basins, southeastern part of Korea. The sedimentary basins have been interpreted to have formed in the framework of separation of the East Sea. The volcanics are Eocene or Early and Middle Miocene in ages, showing a distincetve chronological gap, and show mafic and silicic (bimodal) in composotion. The Miocene volcanics were regionally and stratigraphically grouped into two varieties along the Hyeongsan fault; younger volcanics (13.6-15.2 Ma, K) from the north of the fault, erupted after the opening of the East Sea, and older volcanics (16.2-21.1 Ma) from the south of the fault. (omitted)

• 한국산림과학회지
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• 제66권1호
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• pp.54-63
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• 1984

한국(韓國) 야생다(野生茶)의 유연성(類緣性)을 비교(比較)하기 위(爲)하여 도입품종(導入品種) 2종(種)과 야생다(野生茶) 49개소(個所)를 선정(選定)하여 엽(葉)의 형질(形質)과 화(花)의 형질(形質)을 조사(調査)한 결과(結果)는 다음과 같다. 1) 야생다(野生茶)는 78%가 죽림(竹林)이나 수림하(樹林下)에 있었고 95%가 남향(南向)의 경사지(傾斜地)에서 생육(生育)하고 있었다. 2) 야생다(野生茶)의 분포(分布)에 있어서 남단(南端)은 $34^{\circ}27^{\prime}$이며 북단(北端)은 $35^{\circ}43^{\prime}$이나 거의가 $35^{\circ}$ 부근(附近)에 생육(生育)하고 있었다. 3) 엽형(葉形)은 거의가 타원형(楕円形)과 장타원형(長楕円形)이나 만덕사(萬德寺)에는 광타원형(廣楕円形)도 있었다. 4) 잎의 크기에서 대엽(大葉)은 $14.74{\pm}0.57{\times}5.72{\pm}0.24cm$이고 다른 잎은 $12.16{\pm}1.57{\times}3.53{\pm}0.41cm$이었다. 5) 잎은 길고 뾰족하며 농록색(濃綠色)으로 빳빳하고 민들한 것과 둥글며 모나지 않고 녹색(綠色)으로 부드럽고 울퉁불퉁한 2종(種)이 있었다. 6) 화형(花形)은 용장리(龍藏里)의 것에서 여러 형질(形質)이 뚜렷이 다르고 다른 나머지 것들은 뚜렷한 차이(差異)가 없었다. 7) 야생다(野生茶) 가운데 용장리(龍藏里)은 중국종(中國種)(Thea Sinensis L. var. bohea)의 변이종(變異種)이거나 유종(維種)으로 보이고 와운형(臥雲型)은 중국대엽종(中國大葉種)의 변이종(變異種)이거나 유종(維種)으로 보이며 일반형(一般型)은 중국대엽종(中國大葉種)(Thea Sinensis L. var. macrophylla) 변이종(變異種)이거나 유종(維種)으로 생각된다.

• 한국작물학회지
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• 제31권3호
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• pp.356-360
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• 1986

엽녹소형광측정에 의한 수도 내냉성검정의 가능성을 검토하기 위하여 내냉성이 다양한 11개 품종을 1 /5000a pot에 원형직파하여 육성된 재료들을 수잉기에 1$0^{\circ}C$의 저온에 8 일간 처리하여 저온처리전후의 가변형광량( $F_{VAR}$)과 형광증가속도(F/sun R/)의 변화를 비교하였다. 내냉성이 약한 품종들에서 저온처리에 의한 형광특성들의 감소가 커서 각 품종들의 저온장해정도와 가변형광량 및 형광증가속도의 저온처리전후의 대비지수는 부의 유의상관을 나타내어 이들 형광특성들은 도체형양기관에 나타나는 저온장해의 정도를 판단하는데 유용하게 이용될 수 있을 것으로 판단되었다. 엽록소형광을 이용한 내냉성검정방법은 다량의 육종재료 검정에 정밀성, 경제성, 신속성과 함께 검정에 공시된 개체를 계속 육종에 이용할 수 있어 이의 활용이 기대된다.다.

• 한국환경복원기술학회지
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• 제23권2호
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• pp.1-16
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• 2020

The current status of geographical distribution range of Deutzia paniculata, one of the korean endemic plants, was investigated based on the species distribution information. The information of the geographical range used for analysis includes all the published references to the distribution of D. paniculata, herbarium specimens in Korea National Arboretum (KH) including its online database: http://www.nature.go.kr, and field research. Although, D. paniculata was firstly recorded in Wonsan, Hamgyeongnam-do, North Korea, this research revelaved that D. paniculata is mainly distributed in Gyeongsangbuk-do and Gyeongsangnam-do, southern regions of the Korean Peninsula. According to the distribution map, this species was estimated on distribution edge of in Anyang region of Gyeonggi-do, Mt. Naejang of Jeollabuk-do and Mt. Taebaek of Gwangwon-do on the distribution edge. However, it was made use of intensive field survey to identify the natural population of the species in these regions. D. paniculata habitat was mainly distributed between 290 meters and 491 meters in altitude, but it was also found ranged from 936 to 959 meters in Gun-wi, Gyeongsangbuk-do, South Korea. The distribution slope was 5° to 35° and the north, N, NE and NW in the aspect. The flora of vascular plants in D. paniculata habitats was listed in 137 taxa: 54 families, 103 genera, 120 species, 2 subspecies, 12 varieties and 3 forms while Korean endemic plants were found in three taxa, Stewartia koreana, Weigela subsessilis and D. Paniculata. Based on a collection of non-biological environment and biological environment data, D. paniculata population were discussed to make strategy and basic research methods for sustainable preservation.