겨울유채의 개화습성에 관한 연구

채영암,권용웅,이정일,Young-Am Chae,Yong-Woong Kwon,Jung-Il Lee 한국작물학회 1981 Korean journal of crop science Vol.26 No.3

유채의 개화습성을 용당품종을 공시하여 분석한 결과를 다음과 같이 요약할 수 있다. 1. 개체당 총개화수는 1,400~l,500개이었고 개화는 4월13일에 시작하였으며, 개체당 개화소요 일수는 30일이었다. 2. 개체당 협수는 560~630게 정도이었고 개체당 1차 분지는 18~20개이었다. 3. 협을 형성하는데 평균 5일이 소요되있고 분지의 부위에 따른 개화속도는 차이가 없었다. 4. 분지별 개화기간은 상부분지로 갈수록 0.45일씩 단축되었고 분지부위가 상위로 갈수록 협수는 1개 정도씩 감소했다. 5. 유분함량은 하부와 상부분지에서 높고 중부분지에서는 유의하게 낮았다. To know the characteristics of flowering in rape, flower numbers, flowering speed, flowering period, pod numbers, pod formation period, and oil content were examined by individual plant and by each of branches per plant. The results are; 1) plant had in average 1, 400 to 1, 500 flowers, 2) completion of flowering per plant took 30 days, 3) pod numbers per plant was ranged from 560 to 630, 4) plant had 18 to 20 primary branches, 5) five days were needed for pod formation, 6) no difference in flowering speed by the position of branches, 7) flowering period was shortened by 0.5 days per branch by going to upper part, 8) oil content of seeds was significantly higher on the upper and lower part than on the middle part branches.

벼 품종들의 출수기에 따른 동화산물 생산능력 및 수용기관 크기 변화

이석영,권용웅,Lee, Sok-Young,Kwon, Yong-Woong 한국작물학회 1995 한국작물학회지 Vol.40 No.2

In temperate zone planting rice at different date subjects the Crop to different climatic condition. The present study aimed at comparison of the change in source-sink relationship of the Japonica(J) and that of IndicaxJaponica(I<TEx>$\times$J) type rice cultivars caused by shift of heading date. Two J- and two I<TEx>$\times$J-type cultivars were made to head on August 16, August 26, and September 5. Sink capacity was changed by shift of heading date in different mode between the types of cultivars. In both types major determinant of sink capacity was number of effective tillers, and the number of spikelets per panicle was the minor. In J-type earlier planting/heading was beneficial to increased panicle numbers and this was due mainly to a larger diurnal difference in temperature. I<TEx>$\times$J-type cultivars favored a higher daily mean temperature to increase the sink capacity. The ability of source at heading, in terms of leaf area per panicle, chlorophyll content per spiklet, photosynthetic ability of leaves per unit area at 25<TEx>$\^{\circ}C$, carbohydrate and N contents of leaves, was not so different among different heading dates in both types. However, the source activity was governed principally by temperature during grain filling. The J-type cultivars headed on Sept. 5 and I<TEx>$\times$J-type cultivars headed later than August 16 could not have had sufficient source activity in grain filling due to lower temperature.

핵산지문법을 이용한 새삼屬의 종(種) 식별에 관한 연구

진영준(Young Joon Jin),박상원(Sang Won Park),권용웅(Young Woong Kwon),이상재(Sang Jae Lee),문병철(Beyung Chul Moon),신중두(Joung Du Shin),고기성(Kisung Ko) 韓國雜草學會 2009 Weed&Turfgrass Science Vol.29 No.4

본 연구는 지역별로 수집한 우리나라에서 분포하는 새삼(C. japonica), 실새삼(C. australis), 개실샛삼(C. chinensis) 및 외래종인 미국실새삼(C. pentagona)을 대상으로 RAPD를 이용한 종 특이적 마커를 탐색하고 종식별을 위한 기초자료로 사용하기 위하여 실시 되었다. 41개의 Operon과 12개의 URP primer를 이용하고 PCR에서 새삼류 4종의 DNA를 증폭한 결과, 새삼류 4종에서 36개의 primer가 다형성을 보였고, 그 중 18개의 primer가 종 특이적 밴드 부분을 증폭시켜 동일 지역에서 수입된 개체간의 변이를 조사한 결과 같은 종내 변이는 크지 않은 것으로 확인되었다. 지역별로 수집된 새삼류 4종의 유연관계를 조사한 결과 4개의 그룹으로 구분할 수 있었는데, 남원, 대전, 전주에서 수집된 C. pentagona와 화순에서 수집된 C. chinensis가 속하는 그룹 A와 담양1, 담양2, 천안, 양평, 칠곡, 수원에서 수집된 C. pentagona 및 여수에서 수집된 C. australis가 속하는 그룹 B로 구분할 수 있었다. 그리고 여수, 영주, 중국에서 수집된 C. japonica의 그룹 C와 중국에서 수집된 C. reflexa가 속하는 그룹 D로 구분되었다. 13개의 primer를 이용하여 C. japonica, C. chinensis, C. reflexa 및 C. pentagona에서 각각 7, 5, 7, 2개의 종식별을 위한 특이적 마커를 찾을 수 있었으며, OPS08과 OSP09가 종식별에 가장 효율적인 Primer이었다. Dodder (Cuscuta spp.) is a very important holoparasitic weed in plant quarantine and weed control. In Korea, C. japonica, C. australis and C. chinensis are spontaneous and weed control. In Korea, C. japonica, C. australis and C. chinensis are spontaneous, but recently, C. pentagona, exotic species, was found. Correct identification of the dodder species by morphological characteristics of seed in quarantine is very difficult. Also, species identification of dodders growing in fields is delayed until dodder plants flower. Objective of this experiment was conducted to develop a reliable method of DNA fingerprinting for species identification with seeds and seedlings. The results are summarized as follows. Seeds of five dodders, i.e., C. australis, C. chinensis, C. japonica, C. pentagona and C. reflexa were used for species identification by DNA fingerprinting. Forty one Operon primers and TakaRa Taq DNA Polymerase (5U ㎕-1) were used to be tested. Consequently 36 primer’s showed polymorphism in dodder accessions and 18 primers generated the species-specific bands. For the individual variation within a species in dodder seeds the plant samples were collected from the same area was low except for C. pentagona. Thirteen primers among the 18 primers were used for analysis of inter-specific variation. Overall it was considered that the tested accessions were classified into 4 groups; group A of C. pentagona (Namwon, Daejeon, Jeonju) and C. australis (Hwasun), group B of C. pentagona (Damyang1, Damyang2, Chonan, Yangpyong, Chilgok, Suwon) and C. chinensis (Yeosu), group C of C. japonica (Yeosu, Yongju, China), and group D of C. reflexa (China). The C. japonica-specific 7 bands, the C. chinensis-specific 5 bands, the C. reflexa-specific 7 bands and the C. pentagona-specific 2 babds were identified. As a results, two Operon primers, OPS08 and OPS09, showed sufficient availability for species identification of different dodders.

7. 冬季 Plastic House 育苗 고추 (Capsicum annuum L.)에서 温度와 光度가 生長에 미치는 影響

鄭淳柱(Chung Soon Ju),權容雄(Kwon Young Woong),蘇昌鎬(Soh Chang Ho) 한국원예학회 1987 한국원예학회 학술발표요지 Vol.5 No.1

4. 冬季 Plastic House 育苗 고추 (Capsicum annuum L.)에서 温度와 光度가 生長에 미치는 影響

鄭淳柱(Chung Soon Ju),權容雄(Kwon Young Woong),李炳馹(Lee Byong Il) 한국원예학회 1987 한국원예학회 학술발표요지 Vol.5 No.1

6. 冬季 Plastic House 育苗 고추 (Capsicum annuum L.)에서 温度와 光度가 生長에 미치는 影響

鄭淳柱(Chung Soon Ju),權容雄(Kwon Young Woong) 한국원예학회 1987 한국원예학회 학술발표요지 Vol.5 No.1

국내 분포 새삼屬의 종(種)별 주요 생리·생태적 특성 비교

박상원(Sang Won Park),진영준(Young Joon Jin),권용웅(Young Woong Kwon),문병철(Beyung Chul Moon),김창석(Chang Seok Kim),신중두(Joung Du Shin) 韓國雜草學會 2009 Weed&Turfgrass Science Vol.29 No.4

우리나라에 분포하고 있는 새삼(C. japonica), 실새삼(C. australis), 갯실새삼(C. chinensis) 및 외래종인 미국실새삼(C. pentagona)에 대하여 발아, 생장, 기주 선호도, 일장반응, 개화 및 흡기조직의 구조 등 생리·생태적 특성을 조사한 결과 다음과 같았다. 진한 황산에 시간을 달리하여 침지 처리한 후 25℃ 조건에서 발아율을 조사한 결과, 침지처리를 30~40분 하였을 때 가장 높은 발아율을 나타내었다. 즉, 실새삼과 갯실새삼에서는 황산 침지 30분 후부터, 새삼은 40분이 경과된 뒤에야 80%에 가까운 발아율을 나타내었다. 그리고 미국실새삼은 침지 처리 10분 후부터 높은 발아율을 보였다. 통계프로그램 SAS(v8.0)을 이용하여 probit 분석을 수행한 결과 발아율 50%에 도달하는 시간(t50%)은 미국실새삼 6.6분 << 실새삼 14.8분 < 갯실새삼 19.0분 < 새삼 31.5분 순이었다. 기주식물에 인위적으로 새삼류를 접종시킨 결과, 국내 분포 새삼류 4종 모두 쑥과 개여뀌를 쉽게 공격하여 흡착하였고 왕성하게 생장하였다. 그리고 새삼류는 흡기 발생 후 줄기 신장이 시작되기까지 소요일수는 짧았지만, 개화기까지는 더 많은 시간이 소요되었다. 일장처리 결과 새삼은 기주식물의 개화 여부와 관계없이 단일조건에서만 개화하였고, 갯실새삼은 일장처리에 관계없이 기주식물의 개화반응에 따라 반응하였다. 다른 새삼류에 비해 흡기모양이 현저하게 구별되는 새삼의 흡기조직은 기주의 물관부를 완전히 통과하였으나, 실새삼과 미국실새삼은 물관부까지만 흡기가 침투하는 것을 관찰 할 수 있었다. 그리고 기주세포와 흡기조직의 세포벽 간에 연결된 원형질연락사는 관찰되지 않았으며, 세포벽의 분해 현상도 나타나지 않았다. The objective of this experiment was to investigate the physiological and ecological characteristics such as germination rate, growth, host-preference and flowering periods, and histological structure of insertion for native species of dodder (Cuscuta spp.) as C. japonica C. australis and C. chinensis and exotic species of C. pentagona distributed in Korea. Due to very low germination rate of dodder seeds, with seed-precipitated in the concentrated sulfuric acid, it could be raised over 80% for 30 min. with C. australis and C. chinensis and for 40 min. of immersion time with C. japonica. Especially for C. pentagona originated from America, it shown over 80% of germination rate after 10 min. of its immersion time. According to its probit analysis, it was observed that t50% (required time to be 50% of germination rate) values were following order as C. pentagona, 6.6 min. << C. chinensis, 19.0 min < C. japonica, 31.5 min. With inoculation of dodder to host plants artificially, 4 species of dodders could be easily attacked and inserted to Artemisia princeps and Persicaria blumei with being active growth. And it was also ovserved that the periods of stem growth after occurring it insertion is taken sort time, but its flowering periods is pronlonged for C. japonica. Regarding to treatment of day length, it shown that C. japonica is only flowered at shot day’s condition (8 hour photoperiod) regardless of host plants, but C. chinensis is flowered in respect of response of host plant’s flowering regardless of day length treatment. For their histological structure of insertion, it was observed that C. japonica is completely passed through xylem of host plant, but C. australis and C. pentagona are only penetrated into its xylem. And degradation status of cell wall and plasmodesmata connected with cell walls of host plant cell and the inserted tissue were not appeared.

농업수자원으로서의 흡수성 Biofilter 처리수 재이용

권순국 ( Kwun Soon Kuk ),김현욱 ( Kim Hyun Uk ),권용웅 ( Kwon Yong Woong ),조영현 ( Cho Young Hyun ),박상원 ( Park Sang Won ),임경래 ( Lim Kyoung Lae ) 한국농공학회 2003 韓國農工學會誌 : 전원과 자원 Vol.45 No.5

Absorbent Biofilter Systems (ABS), composed of an anaerobic septic tank, a pump chamber and an absorbent biofilter tank, have been found to economically provide rural on-site wastewater treatment. This study was conducted to assess the potential of ABS effluent as an alternative water resource for agricultural and environmental use, with respect to the removal of pathogenic microorganism and their fertilization effect. A pilot scale ABS was used to compare its removal efficiency of pathogens from effluent water. Overall, more than 95 percent of Salmonella and E. coli were removed. This result demonstrates that a significant reduction in the pathogenic microorganism of effluents can occur in ABS, which implies the feasibility for the use of ABS effluent in agriculture and environment, with the provision of a further simple disinfection step, in order to satisfy the WHO guidelines for the microbiological quality in agriculture. In addition, because of the abundant nutritional content of ABS effluent, the substitution effect of fertilizer (N, P and K) in paddy irrigation, i.e. 2/3 for nitrogen, l/3 for phosphorus and 1/5 for potassium would be expected. Based on the experimental data, the ABS effluent could be used as a new alternative water resource for paddy irrigation, as well as for environmental purposes, such as supplying water to ecological parks in rural villages.