경북 내륙 지역 과거 25년간 기후와 일품벼 수량 변화

신종희,한채민,권중배,김종수,김상국,Shin, Jong-Hee,Han, Chae-Min,Kwon, Jung-Bae,Kim, Jong-Su,Kim, Sang-Kuk 한국작물학회 2020 한국작물학회지 Vol.65 No.4

'Ilpum', a Korean short-grain mid-late maturing rice cultivar, was developed in 1990, more than 30 years ago. Despite its age, it has been the most widely grown cultivar in the Gyeongbuk province of South Korea for more than 25 years, making it the most important rice cultivar for the people of the Gyeongbuk province. The aim of this study was to analyze the relationship between the rice yield of "Ilpum', the main rice cultivar in the Gyeongbuk province, and climate elements in the Daegu (southern plain area) and the Andong (inland mountainous area) regions in Gyeongbuk, South Korea. The rice yield over the past five years increased by about 13% and 24%, compared to that produced in the late 1990s in Daegu and the early 2000s in the Andong region, respectively. The number of panicles per hill and the grain ripening rate significantly affected rice yield in the 'Ilpum' cultivars in the Daegu region. The faster heading was a factor in the increase in 'Ilpum' rice yield in the Andong region. The air temperature has been rising and sunshine duration has been increasing from the late 1990s to present in both regions. Rice yield was evaluated to understand the effect of climate factors. The rice yields increased owing to the long sunshine duration during the grain-filling stage in both regions. In Andong, increasing the maximum temperature during the vegetative stage increased rice yield. Rising air temperature during the reproductive stage also increased rice yield. In particular, long sunshine hours throughout the whole rice growing period increased the rice yield of this cultivar in the Andong region.

유색미 혼합 재배시 수량 및 현미 품질

신종희(Jong-Hee Shin),한채민(Chae-Min Han),권중배(Jung-Bae Kwon),원종건(Jong-Gun Won) 韓國作物學會 2022 한국작물학회지 Vol.67 No.2

혼반용 유색 찰 현미 생산을 위해 품종의 혼합 재배 기술을 이용하면 노동력 절감과 더불어 수량증대로 인한 농가소득 향상에 도움이 될 것으로 기대 된다. 유색미의 경우현미 색이나 품종별로 항산화 및 혈중 콜레스테롤 저하 등의 다양한 기능성 성분을 함유하고 있으며 본 연구에서는혼반용으로 적합한 유색미 품종의 선발과 재배기술의 생력화를 위하여 유색미 혼합재배기술에 대한 연구를 수행 하였다. 유색미에 함유되어 있는 페놀화합물의 정성 및 정량분석 결과 황갈색 계열의 품종 및 자원은 Ferulic acid와Salicylic acid 함량이 높았으며, 적미 계열의 품종 및 자원은 Ferulic acid, Gentisic acid, Catechin 함량이 높았다. 흑미 계열의 경우 Ferulic acid, Caffeic acid, Cinnamic acid 함량이 높았고 적미, 녹미 등 다른 계열의 유색미에 비해Quercetin 함량이 높은 경향이었다. 녹색계열의 녹원찰벼의경우 Ferulic acid, Coumaric acid 함량이 높았으며 특히Coumaric acid 함량이 다른 계열의 유색미에 비해 높았다. 블랜딩 유색미 생산을 위해 품종을 혼합하여 재배할 경우주당수수, 등숙율 증가로 단일품종으로 재배하는 것보다수량이 18∼20% 증수 되었으며, 혼합재배 유형 중 1품종1열 재배에서는 녹원찰, 종자혼합 재배에서는 청풍흑향찰, 한강찰과 아랑향찰은 혼합재배 유형 모두에서 생산성이 높아지는 경향이었다. The mixed cropping system is a centuries-old cropping technique widely practiced in farmers’ fields worldwide. Increased plant diversity enhances farmland biodiversity, which improves grain yield and quality. However, the effect of growing different rice cultivars simultaneously has rarely been investigated. In the present study, six glutinous rice cultivars were selected, and two mixture cultivation methods were determined according to plant height, grain yield, and color. Colored and glutinous rice are used for specific purposes by consumers because of their color and nutritive value. Six glutinous rice varieties, including aromatic and colored rice, were included in the combination interplanting trials. The results showed that, compared with the corresponding monocropping systems, almost all combinations of the mixed cropping systems had advantages in yield-related traits. Compared with monocropping systems, mixed cropping systems increased the number of panicles per plant and maturation rate by 20% and 10%, respectively. An increase of 18-20% grain yield was observed in mixed cropping plots compared with that in plots which grew only a single rice variety. Some rice varieties, such as green colored rice ‘Nogwonchall’ and black colored rice ‘Chungpunghukhayangchall’, exhibited 18-22% increased yield when they were planted in combinations. The high yields were primarily owing to improved light interception and reduced lodging, although other factors (for example, reduced severity of disease) may have also contributed.

The Physicochemical Properties of Starch from Tongil-type Rice Varieties

신종희(Jong-Hee Shin),한채민(Chae-Min Han),송영운(Young-Un Song),김상국(Sang-Kuk Kim),류정기(Jung-Gi Ryu) 한국작물학회 2023 한국작물학회지 Vol.68 No.3

Starch characteristics and pasting properties of Tongil-type rice varieties with different amylose content were analyzed. Three different Tongil-type rice varieties and one Japonica-type rice variety were examined for their properties. Tongil-type rice varieties have longer panicles and higher rice yield (721-765 kg per 10a) than Boramchan, a Japonica-type high-yield rice variety. The protein content of the Tongil-type rice variety was higher than that of Boramchan. Japonica-type rice varieties had lower amylose content than Japonica-type rice varieties, except for Amimyeon (Milyang355). Amimyeon had higher protein content than the other varieties, and its amylose content was particularly high at 39.2%. The distribution of starch granule sizes of the four varieties was similar, and the particle size corresponding to D50 was approximately 87.8-81.9 μm. The pasting properties of rice flour varied among varieties. The Dasanbyeo and Hanarum2 amylogram patterns were similar. These two varieties had a higher peak viscosity (PV) and lower setback (SB) than Boramchan. In the case of Amimyeon, the hot paste viscosity (HPV), cool paste viscosity (CPV), and SB were significantly higher than those of the other Toingil-type varieties, and the breakdown (BD) was very low, showing pasting properties significantly different from that of the other varieties. The onset (To), peak (Tp), and conclusion temperature (Tc) of gelatinization of rice flour from Amimyeon were lower than those of the other tested varieties. In addition, the gelatinization temperature, measured using differnetial scanning calorimetry (DSC), and BD, measured using al rapid visco analyzer (RVA) were low in Amimyeon. Amylose content showed a high positive correlation with pasting time (PTi), HPV, and SB and a negative correlation with PV and BD.

벼 무경운 이앙재배시 왕우렁이(Pomacea canaliculata) 치패를 이용한 잡초방제

신종희(Jong-Hee Shin),한채민(Chae-Min Han),김상국(Sang-Kuk Kim),권중배(Jung-Bae Kwon),김종수(Jong-Su Kim) 한국잡초학회·한국잔디학회 2020 Weed & Turfgrass Science Vol.9 No.3

무경운 벼 재배논에서 이앙전 왕우렁이 치패(어린 우렁이)의 투입시기에 따른 잡초방제 효과를 조사한 결과, 무제초 대비 이앙하기 21, 14, 7일 전 투입과 이앙당일 투입에서 각각 91, 90, 80, 65%의 방제효과가 있었다. 이앙하기 21-7일 전에 왕우렁이 치패를 ha당 15 kg (약 7,500개) 투입시 올챙이고랭이, 여뀌, 미국외풀, 사마귀풀, 물달개비를 100% 방제할 수 있었다. 왕우렁이 치패 투입시기에 따라 초장을 비롯한 분얼수, 수량구성요소에는 유의적 차이를 나타내지 않았다. 백미수량의 경우 이앙전 14일 투입구에서 4,610 kg·ha-1로 무제초구 대비 158%의 수량을 나타내었다. 제초효과 및 쌀수량을 고려한다면 무경운 논에서 이앙전 왕우렁이 치패 투입은 이앙하기 21-7일 전이 적합한 것으로 판단되었다. Weed management under organic farming systems is very problematic since organic agriculture does not allow synthetic herbicides. We investigated the influence of the input time of young golden apple snail (GAS, Pomacea canaliculata) on the weed control to suggest and introduce this environment-friendly weed management technique in no-tillage rice cultivation. This experiment was conducted in environment-friendly no-tillage rice paddy field in Yecheon, Gyeongsangbuk-do. The objective of this research was the method for weed management through the study on the effect of weed control by input time (applied at 21, 14, 7 and 0 days before rice transplanting) of young GAS (15 kg·ha-1). The effectiveness of weed control as affected by GAS when applied at 21, 10, 7, and 0 days before transplanting (DBT) was 91, 90, 80, and 65%, respectively. The young GAS, when applied 21-7 days before transplanting at 15 kg·ha-1 (approximately 7,500 ea) provided 100% control of Scirpus juncoides, Persicaria hydropiper, Lindernia dubia, Aneilema japonica, and Monochoria vaginalis. The variations in the input time of GAS caused significant differences in the harvested yield, but no significant differences were found in the plant height, tiller number, ripening and grain weight. Approximately 4,340-4,600 kg·ha-1 of the rice yield obtained through the utilization of apple snails 21-7 days before transplanting. These data indicate that the application of young GAS before transplanting is an efficient method for weed management in environment-friendly no-tillage rice paddy fields.

Effect of Transplanting Time on the Physicochemical Properties of Starch in Different Mature Rice Varieties

신종희(Jong-Hee Shin),한채민(Chae-Min Han),송영운(Young-Un Song),김상국(Sang-Kuk Kim),류정기(Jung-Gi Ryu) 한국작물학회 2023 한국작물학회지 Vol.68 No.2

스포로트리쿰증양 소견을 보인 Fish Tank Granuloma

김종율(Jong Youl Kim),이지범(Jee Bum Lee),김성진(Seong Jin Kim),이승철(Seung Chul Lee),원영호(Young Ho Won),김종필(Jong Phil Kim),기승정(Seung Jung Kee),신종희(Jong Hee Shin) 대한피부과학회 2001 대한피부과학회지 Vol.39 No.6

Mycobacterium marinum, group I phatochromogen, is an atypical mycobacterium living in an aquatic environment including swimming pools, lagoon, lake, or fish tanks. Infections with M. marinum are not common, so only three cases have been reported in Korea. In general, skin lesions evolve as a solitary nodule or pustule but occasionally sporotrichoid spreading along the course of lymphatic vessels occurs. A 46-year-old woman visited our department with 2×1.5cm sized erythmatous ulcerated nodule on her right hand dorsum and several rice-sized subcutaneous nodules along the ascending course of lymphatic vessels on her right forearm. She had cleaned fish tank two months before the skin lesion developed. A AFB-positive microorganism was isolated by culture of the tissue specimen, which grew slowly at 30C and those colonies showed yellowish color after light exposure on Ogawa medium. This microorganism was confirmed as M. marinum by polymerase chain reaction and restriction enzyme analysis. To the best of our knowledge, this is the first case of sporotrichoid granuloma due to M marinum infection occurred in association with fish tank in Korea. (Korean J Dermatol 2001;39(6) 688~692)

한국산 장마(Dioscorea oppasita cv. Jang-Ma)에서 분리한 Chinese yam necrotic mosaic virus

강동균,곤도토루,신종희,신혜영,성정현,강상구,장무웅,Kang, Dong-Kyoon,Kondo, Toru,Shin, Jong-Hee,Shin, Hye-Young,Sung, Jung-Hyun,Kang, Sang-Gu,Chang, Moo-Ung 한국식물병리학회 2003 식물병연구 Vol.9 No.3

경상북도 안동, 의성, 군위, 대구의 장마 재배포장에서 모자이크와 괴저반점을 보이는 장마잎을 채집하였다. 이들 이병 잎 조직을 시료로 하여 D N 법 및 ISEM법에 의해 투과전자현미경으로 바이러스 입자를 관찰한 결과, 각각의 시료에서 ChYNMV 항혈청에 반응한 660nm의 사상형 입자가 확인되었다. 장마 잎에서 부분 정제한 바이러스에서 RNA를 추출하여 이것을 주형으로 ChYNMV 특이적 프라이머와 oligo-dT 프라이머를 이용하여 외피단백질 유전자와 3‘-말단 비전사부위를 포함하는 약 1.2kbp의 3’-말단을 증폭하였다. 외피단백질 아미노산서열은 Macluravirus로 알려진 ChYNMV (A B044386)와 97.9%의 상동성을 보여 장마에서 분리한 바이러스를 ChYNMV로 동정하였다. ChYNMV와 다른 Macluavirus의 외피 단백질 아미노산서열을 비교한 결과, M말단 영역에서 가장 많은 변이를 확인하였고 Macluravirus 속에는 잘 보존된 영역이 존재하였다. Chinese yam (Dioscorea opposita cv. Jang-Ma) plants showing necrotic mosaic symptom were collected from their growing fields in Andong, Euisong, Gunwi and Daegu, Korea. Direct negative stainning method by electron microscope showed filamentous particles of about 660 nm in length. Immunosorbent electron microscopy (ISEM) revealed filamentous particles of 660nm decorated with antiserum of Chinese yam necrotic mosaic virus (ChYNMV). The virues purified partially were used to isolate viral RNA as template for RT-PCR to amplify about 1.2 kbp of 3'-terminal region (coat protein, 3'-UTR) with ChYNMV specific and oligo-dT primers. Amino acids sequences of amplified CP genes revealed that the viruses shared 97.9% similarity with ChYNMV (AB044386) wh ich was known as the member of Macluravirus. So the viruses from Chinese yam (D. opposita cv. Jang-Ma) plants were identified as ChYNMV. Comparing the CP amion acid sequences of ChYNMV strains with other macluraviruses such as Cardamon mosaic virus (CdMV), Narcissus latent virus (NLV) and Maclura mosaic virus (MacMV) revealed that N-terminal was the most varialbe region and conserved regions were present within the genus Macluravirus.

GA₃, Kinetin 및 물리적 처리가 초피나무 종자의 발아에 미치는 영향

김세종(Se Jong Kim),신종희(Jong Hee Shin),김기재(Ki Jae Kim),박소득(So Deug Park),최부술(Boo Sull Choi),김길웅(Kil Ung Kim) 한국약용작물학회 1997 한국약용작물학회지 Vol.5 No.1

This study was conducted to improve germination ratio of Zanthoxylum piperitum A. P. DC. Seeds. Stratification for 60 days after scarification of seed with sand was germination percentage to 5. 4% and GA₃ 50ppm for 24 hrs after scarification of seed with sand showed 8. 9%. Soaking the seeds in GA₃ 50ppm for 24 hrs after 40 to 70℃ hot water treatment for 10 minutes showed low germination of 4. 4%. Based on H2SO4, NaOH and HNO3 treatments, germination percentage did not improve at all regardless of soaking time. The highest germination of 91. 1% was observed when seed was soaked in GA₃ 100ppm for 48 hrs after stratification for 60 days at 4℃. Kinetin treatment at 50ppm for 24 hrs had the greatest germination percentage of 31. 7% but it did not improve germination ratio compared to GA₃ treatment.

증례 : 감염 ; Neisseria elongata subsp. nitroreducens에 의한 인공판막 심내막염

박동진 ( Dong Jin Park ),신종희 ( Jong Hee Shin ),박경화 ( Kyung Hwa Park ),정숙인 ( Sook In Jung ),윤현주 ( Hyun Ju Yoon ),장희창 ( Hee Chang Jang ),정연선 ( Young Sun Jung ) 대한내과학회 2010 대한내과학회지 Vol.79 No.6

N. elongata subsp. nitroreducens는 비인두강의 상재균이지만 기저 심장 질환이 있거나 치과 시술을 받은 환자에서 드물게 심내막염을 일으킬 수 있다. 저자들은 인공판막을 가진 환자에서 발생한 N. elongata subsp. nitroreducens에 의한 감염성 심내막염을 진단하고 수술적 치료 없이 항생제 치료만으로 호전된 1예를 경험하였기에 보고하는 바이다. Infective endocarditis due to Neisseria elongata subsp. nitroreducens occurs infrequently. In this report, we describe a case of infective endocarditis caused by N. elongata subsp. nitroreducens in a patient with a prosthetic heart valve. A 55-year-old woman presented with complaints of fever and headache that she had been experiencing over the course of 4 weeks. Transesophageal echocardiography showed vegetation on the prosthetic mitral valve. A blood culture isolate was confirmed as N. elongata subsp. nitroreducens using biochemical characterization and DNA sequencing of 16S rRNA. The clinical manifestations improved with medical treatment. (Korean J Med 79:720-723, 2010)

분얼기 수분 스트레스가 벼 생육 특성 및 엽록소 형광 반응에 미치는 영향

한채민(Chae-Min Han),신종희(Jong-Hee Shin),권중배(Jung-Bae Kwon),원종건(Jong-Gun Won),김상국(Sang-Kuk Kim) 韓國作物學會 2022 한국작물학회지 Vol.67 No.2

일품등 9품종을 대상으로 경북 남부 평야지역 봄 가뭄 대응 벼 품종별 재배안정성을 평가하기 위해 분얼초기 인위적으로 수분 부족 스트레스를 유도한 결과는 다음과 같다. 1. 일품등 9품종 대상으로 수분 부족 스트레스에 따른 결과는 평균적으로 관행대비 출수기는 약10일 빠르고 쌀수량은 약 18.6% 감소, 담백질 함량은 20.2% 증가, 식미치는 8.3% 감소하였다. 2. 본 연구에서 수량에 가장 영향을 미치는 인자는 2차 지경 분화기에 가장 영향을 받는 영화수와 천립중으로 나타났다. 3. 잎마름이 50%에 도달할때까지 소요일수가 가장 긴 품종은 새누리, 가장 짧은 품종은 대보였다. 4. 재관개 후에도 대보와 삼광은 수량감소가 가장 컸을뿐아니라 FV/FM 관행 초기값으로 회복하지 못하여 가뭄의광생리학적 지표의 가능성을 확인하였다. 따라서 경북 남부 평야지역에서는 봄 가뭄 대응 내건성벼 품종은 새누리와 하이아미가 가장 적합하고 내건성이약한 품종들은 재관개 후에도 광합성 효율이 낮아 수량감소로 이어져 이러한 결과에 따라 관행대비 쌀 수량감소율과 단백질 함량이 낮고 식미치가 높은 품종으로 새누리, 하이아미가 내건성 적합품종으로 선발되었다. This study aimed to evaluate the growth, yield, and grain quality characteristics of rice varieties that were subjected to water stress during the tillering stage. We also sought to identify whether water stress could be indicated via the plants’ response to chlorophyll fluorescence. In this study, we induced water stress by intentionally cutting off water for 30 days, starting 15 days after transplanting the rice varieties to a greenhouse. We analyzed nine rice varieties, including Ilpum, which is the most frequently cultivated variety in Gyeongsangbuk-do, South Korea. The control group was planted in a paddy field where irrigation was entirely dependent on rainfall. Our results revealed that the heading stage of the nine studied varieties occurred approximately ten days earlier in the rain shelter than in the field. Moreover, the rice yield, head rice rate, and palatability score decreased by 18.6%, 17.1%, and 8.3%, respectively, while protein content increased by 20.2% compared with the control group. The Saenuri and Haimi varieties showed the lowest reduction in yield under the water stress conditions, while the Daebo and Samkwang varieties showed the highest reduction in yield. The chlorophyll fluorescence response after re-irrigation was measured between July 30th and August 17th. The ratio of variable fluorescence to maximum chlorophyll fluorescence (FV/FM) values failed to recover to their baseline values, resulting in either no change or a reduction in fluorescent response, even after re-irrigation of Daebo and Samkwang varieties. These results can be utilized as empirical data for drought-affected farms to select resistant varieties that can respond to spring drought in the southern plains of Gyeongsangbuk-do.