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나영왕(Young-Wang Na),정호정(Ho Jeong Jeong),정재완(Jae Woan Cheong),최효길(Hyo Gil Choi),전흥용(Heung Young Jeon),김도선(Do Sun Kim),노일래(Il Rae Rho) 한국원예학회 2013 원예과학기술지 Vol.31 No.5
‘대왕’ 품종은 농촌진흥청 국립원예특작과학원에서 2010년도 육성한 촉성재배용 신품종이다. 맛과 향이 우수하면서 경도가 강한 품종을 육성하기 위해 2006년 고당도 품종인 ‘매향’과 고당도 품종인 ‘원교3111호’를 교잡하여 육성하였다. ‘대왕’ 품종의 주요 특성을 보면 초형이 직립형이고 초세는 매우 강하다. 화방당 꽃 수는 12-15개 정도로 적고 휴면타파를 위한 저온요구시간은 50-100시간 정도로 촉성재 배용으로 적합한 품종이다. 과형은 원추형이고 과색은 연적색이며 평균과중은 16-17g 내외의 중대과형 품종이다. 과실의 당도는 11.1°Brix, 산도는 0.39%로 당산비가 적절하여 식미가 좋으며 특히 과육 내 육질이 치밀하여 씹는 맛이 우수하다. 또한 경도가 18.2g・mm<SUP>-2</SUP>로 아키히메의 10.3g・mm<SUP>-2</SUP>보다 7.9g・mm-2이 더 높아 봄철 늦게까지 수확이 가능하다. 그리고 상품과율은 대조품종인 ‘아키히메’보다 높았으나 전체적인 수량은 유의적인 차이를 보이지 않았다. 그러나 탄저병과 고온에 다소 약한 경향이 있다. A new cultivar ‘Daewang’ strawberry was developed by the National Institute of Horticultural & Herbal Science for forcing culture in 2010. The cultivar ‘Daewang’ was originated from the cross between ‘Maehyang’, a high firmness cultivar and ‘Wongyo 3111’, a high sugar content in 2006. The cultivar shows erect plant type, vigorous growth habit, early flower bud differentiation with 12-15 flowers per cluster from planting on healthy nursery. Fruits of ‘Daewang’ are conical type having a bright red skin color, and 16-17 g in an average weight. ‘Daewang’ is suitable for forcing culture as time required for dormancy breaking ranged between 50 and 100 hours. This cultivar has excellent taste for high sugar/acid ratio as sugar content of 11.1 °Brix, acidity of 0.39% with abundant texture and can be harvested by late spring because the fruit firmness of ‘Daewang’ was 18.2 g・mm<SUP>-2</SUP> that was about 7.9 g・mm<SUP>-2</SUP> higher than 10.3 g・mm<SUP>-2</SUP> of ‘Akihime’ cultivar. But although total yield is not significantly different from ‘Akihime’ cultivar, its marketable yield is remarkably higher than that of ‘Akihime’ cultivar. Disease and pest resistance of ‘Daewang’ have a tendency to sensitive powdery mildew, anthracnose and spotted spider.
종자수명에 영향을 미치는 벼 유전자원의 형태적,생태적 특성
나영왕 ( Young Wang Na ),이석영 ( Sok Young Lee ),최유미 ( Yu Mi Choi ),백형진 ( Hyung Jin Baek ),강정훈 ( Jung Hun Kang ),김석현 ( Seok Hyeon Kim ) 한국국제농업개발학회 2014 韓國國際農業開發學會誌 Vol.26 No.3
The purpose of this study was to know the relations between seed longevity of rice germplasm and their morphological and ecological characters. Changes in seed germination rate of rice germplasm during conserving in the National Agrobiodiversity Center, RDA, Korea were investigated in 3,066 accessions. The rice germplasm accessions have been conserved for 26.5 years at 4oC, 30% RH storage. The morphological and ecological characters of rice germplasm were investigated at Suwon in 1980. The contributive rice morphological and ecological characters related with seed storablility were grain shattering, grain length and awn color.
국제미작연구소(IRRI) 종자은행의 유전자원 보존,관리 현황
최유미 ( Yu Mi Choi ),강정훈 ( Jung Hoon Kang ),나영왕 ( Young Wang Na ),조규택 ( Gyu Taek Cho ),고호철 ( Ho Cheol Ko ),이정란 ( Jeong Ran Lee ),김행훈 ( Haeng Hoon Kim ),백형진 ( Hyung Jin Baek ) 한국국제농업개발학회 2010 韓國國際農業開發學會誌 Vol.22 No.3
Rice, one of the most important Cereal crop, is the staple food for more than half the world`s population. Future crop improvement needs the genetic variation from traditional varieties and related wild species to cope with the many biotic and abiotic stresses around the world. Established in 1977, the IRRI genebank has conserved more than 109,000 accessions including 5,000 accessions of wild. All introduced germplasms are multiplied after the necessary quarantine check by IRRI`s Seed Health Unit. Multiplication and regeneration are carried out only during the dry season between the end of October and March with the consideration of ecotype to produce seeds with the highest quality. A sufficient quantity of high qualified seeds are stored in base and active collections for long-term and mediumterm conservation, respectively. Germplasms are also conserved at the NCGRP(National Center for Gegenetic resources Preservation), USA and SGSV(Svalbard Global Seed Vault), Norway as a safety back-up. The decision to regenerate germplasm accessions depends equally upon the viability and quantity of seeds held in storages. Germplasms are available freely on request to bona fide researchers in both public and private sector institutions and farmers. An integrated information system is linked to all operations associated with germplsam conservation and management.
연구보문 : 자연과학 ; 수수 포장출현력 예측을 위한 종자세 적합도 검사
김석현 ( Seok Hyeon Kim ),이명희 ( Myeong Hee Lee ),강경희 ( Kyeong Hee Kang ),박민우 ( Min Woo Park ),심상인 ( Sang In Shim ),정정성 ( Jung Sung Chung ),나영왕 ( Young Wang Na ) 한국국제농업개발학회 2013 韓國國際農業開發學會誌 Vol.25 No.1
본 연구는 실험실에서 인위노화처리로 종자활력을 조절한 후 실시한 몇 가지 종자세 검정치와 포장출현력과의 관계를 설정하여 수수의 포장출현력 예측에 가장 적합한 종자세 검사 방법을 구명하고자 수행하였다. 수수 종자의 종자세가 높은 상태에서는 표준발아검사에서의 유아장이 포장출현력 예측에 효과적이며, 노화된 종자에서는 저온발아검사(CGT)에서의 정상묘율이 포장출현율과 높은 상관관계를 가지고 있었다(r = -0.998, p < 0.01). 포장출현력 예측에 효과적인 몇가지 종자세지수를 이용하여 stepwise multiple regression 분석을 실시한 결과 표준발아검사에서의 종자세 지수(vigor, SGT)가 95%의 높은 포장출현력 예측효과를 나타내었으며, 표준발아검사에서의 정상묘율(% normal seedling), 테트라졸리움의 종자세(vigor, TZ), 저온검사(cold test)에서의 정상묘율과 저온발아검사(CGT)에서의 정상 묘율과 같은 변수를 회귀방정식에 추가함에 따라 포장출현율 예측효율을 증가시킬 수 있었다. 표준발아검사와 저온발아검사는 노화정도가 다른 수수 종자의 종자세 검사방법으로 적합하다고 사료된다. In this study, several attempts were made to develop prediction method based on regression analysis for field emergence of sorghum using various seed vigor tests in laboratory. Sorghum seeds artificially aged to provide various levels of seed quality were evaluated by the standard germination test (SGT), cool germination test (CGT), cold germination test (CT), tetrazolium vigor test, electroconductivity test and complex stressing vigor test (CSVT). The most suitable criterion for identifying the degree of seed vigor was plumule length in the seeds shown higher seed vigor in the SGT. The field emergence rate and % normal seedling were highly correlated with performance in the aged condition (lowered seed vigor) of the CGT (r = -0.998, p < 0.01). In a multiple correlation analysis, seed vigor in the SGT accounted for 95% of the variation in seedling emergence in sorghum. Also, % normal seedling in SGT, TZ vigor test, % normal seedling in cold test (CT) and cool germination test (CGT) were useful for predicting field emergence in sorghum. The standard and cool germination tests therefore appear to be suitable for evaluating a wide range of seed vigor of sorghum seeds in field and could be used as a rapid vigor test.
연구보문 : 자연과학 ; 황산처리에 의한 불투수성 황근 종자의 발아촉진에 관한 연구
서상흠 ( Sang Heum Seo ),박민우 ( Min Woo Park ),장미하 ( Mi Ha Chang ),장일웅 ( Il Ung Jang ),심상인 ( Sang In Shim ),나영왕 ( Young Wang Na ),김수영 ( Soo Young Kim ),김석현 ( Seok Hyeon Kim ) 한국국제농업개발학회 2012 韓國國際農業開發學會誌 Vol.24 No.3
The reason of poor germination rate of hamabo mallow seed was speculated using TZ test to determine the viability of seed. Seeds showed high viability via TZ test were not germinated well. The quiescent seeds did not imbibed properly due to the hard seed coat and did not show further processes required for germination. Several well-known treatments for seed coat loosening and water uptake into seed were applied and compared for their efficiency. Stratification, hot water treatment, seed coat scarification, wet-cold treatment were revealed as less effective for improving germination although those treatments were common method for breaking dormant seed. Chemical scarification with sulfuric acid, however, effectively increased germinability and promptness index of hamabo mallow seeds. Optimal time for sulfuric acid treatment was 20 min. Seeds treated for 20 min showed improved germination percentage, germination speed, and promptness index of 80%, 13, and 1969 at 30 days after imbibition, respectively, in petri dish experiment. The values were greater than control seeds showed low values (12%, 1, and 183, respectively). The similar tendency was observed in the pot experiment that sulfuric acid treated seed were sown in artificially mixed soil (loamy soil:peatmoss:sand:compost = 5:2:2:1) and placed in greenhouse. Ultrastructure analysis of chemically scarified seed with sulfuric acid for 20 min by scanning electron microscopy did not show any noticeable changes in seed coat hardness and water uptake via hilum. But the only change after sulfuric acid treatment was removal of hilum cap that close the hilum and hider imbibition. Therefore, subsequent experiment was conducted to know the relationship between removal of hilum cap and facilitated imbibition by sulfuric acid treatment and whether the hilum cap removal directly influenced to the opening of micropyle. Water uptake velocity of seed treated for 20 min in concentrated sulfuric acid for was greater than control seed. This result implies that the crucial effect of sulfuric acid treatment is the removal of hilum cap that increase water uptake via micropyle in hamabo mallow.
이동진,채제천,나영왕,노로빈알탄수크 한국국제농업개발학회 1998 韓國國際農業開發學會誌 Vol.10 No.1
농업은 몽골의 경제에 있어서 매우 중요한 위치를 차지한다. 농업부문의 생산량은 국가 총 생산량(GDP)의 ⅓을 점유하고 있으며, 총 노동력의 27%를 담당하고 있다. 농업 특히 가축생산이 몽골산업에서 큰 비중을 차지하기 때문에 농업교육 또한 매우 중요하게 여긴다. 1993년, 5개 농업학교와 지방의 4개 농과대학이 합병하여 국립몽골농업대학교로 발전하였다. 학부과정으로 5년간 교육을 받으며 주요 전공으로는 수의과학 축산학, 농학, 농기계학, 농경제학 등이 있다. 대학에는 졸업생을 대상으로 6주∼6개월간의 단기과정으로 재교육을 실시하고 있다. 1995년 현재 등록 학생수는 1,080명이었다. 몽골의 농업연구는 식물과학 농업연구소등 몽골농업대학교의 16개 연구소에서 수행되고 있으며 전통 약용작물 등 자생 식물 연구는 과학부 산하 약용작물 연구소 및 식물연구소에서 이루어지고 있다. 이들 연구소 및 지역시험장들은 농업생태 및 지역을 고려하여 설립되었다. Agriculture is the mainstay of economy in Mongolia. This sector contributes about one third of the gross domestic product and provides direct employment for 27% of total labor force. Agricultural education has been a priority in Mongolia in recognition of the key position occupied by agriculture, especially livestock production. in the economy. In 1993, the five agricultural special schools and four regional agricultural colleges were merged with the Mongolian Agricultural University(MNUA). Education at the Agricultural University is currently based on 5-years undergraduate courses in veterinary science, zootechnics, agronomy, agricultural engineering, and agricultural economics. The university has managed a regular retraining program for graduates in short courses during 6 weeks to 6 months. The status of enrollment of university were 1,080 student in 1995. For the development of agricultural research, sixteen research institutes under MNUA and two research institutes of Ministry of Science are established according to agro-ecological zones and research field.