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이문섭,양재현(Jae-Hyeon Yang),임승빈,이희봉 한국작물학회 2015 한국작물학회지 Vol.60 No.4
This study was carried out to find relationships of genetic distance and heterosis expression degree in the developed CNU waxy corn lines. The used material were developed in Corn Breeding Laboratory, Coll. of Agri. & Life Sci., CNU. Total 10 primers used for SSR maker analysis. In genetic distance, the used lines divided into four groups; A group has two lines, B group has one line, C group has ten lines and D group has eleven lines, respectively. Among used lines, CNU427 and CNU588 were very closed as a 74, while CNU451 and CNU429 were remote as a 40 inbred coefficient, respectively. While heterosis degree were very variable not only hybrids but also cross parents. Average heterosis of most cross-parent was high in plant height, ear height, flowering day and ear length. Especially, CNU H09-23 hybrid was high as 79.4% than other hybrids. Here, we gained the fact has closely relationship between genetic distance and heterosis. 공시된 교잡종에 대한 중요 식물학적 특성에 대해, 잡종강세를 양친 중간 값으로 나타낸 결과 공시종 중에서 잡종강세가 현저한 간장의 평균 값은 77.2%이었고 37.8% 착수고는83.8%로 나타났다. 각 교잡종별 잡종강세 정도 간장의 경우H-11에서 162%로 가장 높았고, 착수고는 H-14에서 116.7% 로 높았다. 개화기는 대부분의 교잡종에서 부(-)의 값을 보여교잡종이 교배친보다 개화기가 단축되었는데 특히 H-5는-27%로 개화기가 빨랐다. 전체 이삭길이의 평균 잡종강세는37.8%로 낮게 나타났으나 H-29 교잡종은 96.2%로 높 나타났다. 또한, 10개의 primer 이용한 계통간 상호교배에 의한교잡종에 대한 SSR 마커를 이용한 유전적 거리에 대한 분석결과 크게 4그룹으로 분류 되었다. CNU16과 CNU14간에 가장 가까운 근연계수를 보였고, CNU6과 CNU9간 그리고CNU19와 CNU13간에 가장 먼 근연계수를 보였다. 간장은 CNU454, CNU457간의 조합인 2군과 4군간의 조합에서 잡종강세가 162%로 가장 높았고, 이삭길이는 CNU258/CNU251, CNU915/CNU799 및 CNU427/CNU36 조합에서 높은 값을보였다. 유전적 거리는 근연관계가 멀수록 값이 낮고, 반대로 근연관계가 가까울수록 유전적 거리는 낮게 나타나는데 이삭길이 등은 유전적 거리가 가까운 90%의 높은값을 보였다.
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Analysis on Antioxidant Activity of the New Developed Waxy Corn Hybrids
이문섭,양재현(Jae-Hyeon Yang),이경은,이희봉 한국작물학회 2015 한국작물학회지 Vol.60 No.2
A total of CNU 28 colored hybrids developed at the Chungnam National University were evaluated to identify new cultivars with functionality. These color waxy corn hybrids appeared to have high antioxidant activity. The SOD activity in the developed color waxy corn was high; CNU13H-3, in white hybrid, and CNU13H-44, in yellow hybrid, was 5% and 27% higher than the Yeonnong and Daehakchal Gold 1 of control hybrids, respectively. The DPPH activity in CNU13H-44, of yellow hybrid, and CNU13H-75 of purple hybrid were high as 32.6 mg/g and 40.1 mg/g, respectively. We have already reported that color hybrids have high antioxidant activity. In this study also was same results. On the basis of our findings, these hybrids will be planted in next time to compare their productivity and area adaptation.
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사료용 다얼· 다수성 옥수수의 생육특성· 생체 및 건물 수량
나승연,이문섭,양재현(Jae-Hyeon Yang),이경은,이희봉 한국작물학회 2016 한국작물학회지 Vol.61 No.3
This study was carried out to find a new corn cultivar with multiple tillers that is suitable for forage. Materials were developed at the Corn Breeding Laboratory of Chungnam National University. A total of 3,650 accessions were collected domestically and from other countries, including China. Among them, 16 CNU inbreds, tillering and non-tillering, were compared to each other in terms of stem heigh, number of tillers, fresh weight, and dry weight per plant. Of these surveyed traits, the stem heigh at tasseling stage was 140~190 cm and number of tillers per plant ranged from two to four. Fresh weight and dry weight of these lines were higher in the tillered than in the non-tillered sample. Keywords : dry and fresh weight, inbred corn, stem height, tasseling stage, tillering 국내 옥수수 유전자원 중에서 분얼이 많고 생육이 우수한 계통을 이용하여 생육특성 및 건물수량을 조사한 결과는 다음과 같다. 1. 육성된 계통의 평균 간장은 174.7 cm, 개화소요일수는 61일, 주당분얼수는 2.3개, 착수고는 64.1 cm로 나타났다. 2. 평균 도복율은 2정도로 모든 계통에서 내도복성을 가졌다. 3. 주당 평균 이삭중은 135.9 g으로 CNUB14T-01에서249.0 g으로 가장 높았다. 4. 공시계통의 주당 평균 생체중과 건물중은 각각 694.4 g 과 183.7 g으로 나타났으며, 평균 건조 비율은 30%로나타났다. 5. 공시계통 중에서 CNUA14T-07의 생체중과 건물중이2367.8 g과 532.8 g으로 가장 높게 나타났다.
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Botanical Characteristics, Fresh Yield and Table Qualities of CNU Waxy Corn Hybrids
나웅현,이문섭,하지형,양재현(Jae-Hyeon Yang),이희봉 한국작물학회 2015 한국작물학회지 Vol.60 No.1
A total of CNU 28 hybrids were developed at the CNU Corn Breeding Lab. were evaluated to identify new cultivars in botanical characteristics, fresh yield per 10a and taste qualities. Most of these hybrids were stable in environmental stresses such as lodging, disease and insects. Stem height ranged from 115.0 to 239.3 cm, and ear height ranged from 30.7 to 107.0 cm. The ear height to stem height ratio was showed low than 50% of standard as a stable plant type to lodging. The range of ear length was 14.2 cm to 23.0 cm. Especially, CNU 13H-73 was very longest ear as a 23 cm. The fresh yield per 10a was high in purple of CNU13H-79 hybrid than control hybrid Miheuckchal, and CNU13H-73 in white hybrid was similar Yeonnong check hybrid. The 100-kernel weights in CNU13H-3 and CNU13H-9 hybrids were higher than that of the control hybrid. CNU13H-98 among hybrids had a 100-kernel weight of 20.32 g, which was heavier than that of the control hybrid Daehackchal Gold 1. The average pericarp thickness was 41.4 μm, CNU13H-46 among hybrids had a very thin pericarp as a 35.5 μm. The mean sugar content of the used hybrids was 14.95 brix%; CNU13H-73 and CNU13H-55 had higher than Mibak2 as a control hybrid.
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라즈베리파이와 OpenCV를 사용한 스마트 스피드게이트
정대균 ( Dae-kyun Kim ),양재현 ( Jae-hyeon Yang ),박다봄 ( Da-bom Park ),남가희 ( Ga-hee Nam ),정순호 ( Soon-ho Jung ) 한국정보처리학회 2021 한국정보처리학회 학술대회논문집 Vol.28 No.2
어플을 사용하여 사용자 등록과 휴대폰 카메라를 사용하여 얼굴을 등록하고, 파이카메라에 촬영된 얼굴 이미지를 바탕으로 OpenCV를 이용하여 출입하는 인원의 식별과 열화상 카메라를 통해 체온 측정을 수행하여 사용자의 출입 기록을 저장한다. 기존의 QR코드 인식과 체온 측정을 동시에 수행하여 출입 시스템의 간소화를 기대할 수 있다.
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