• Title/Summary/Keyword: 신품종

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Development of New Hybrid Zoysiagrass Cultivar 'Seah' (한국잔디 신품종 '세아(Seah)' 개발)

  • Choi, Joon-Soo;Yang, Geun-Mo;Bae, Eun-Ji;Park, Yong-Bae;Lee, Kwang-Soo
    • Weed & Turfgrass Science
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    • v.6 no.4
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    • pp.306-312
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    • 2017
  • This study was carried out to develop new hybrid zoysiagrass cultivar 'Seah' (The application no. for cultivar protection : 2014-22). Native zoysiagrasses were collected from south-west seaside of Korea from 2010 to 2011. Artificial crossing was conducted to develop F1 hybrid between Z2011 (Z. sinica) and NM1 (Z. matrella) at plastic house in 2011. Among the progenies, 'Seah' showed fine leaf texture and high shoot density from the space planting plots at field. 'Seah' showed genetically light green color, with fine leaf with 1.8mm and height to the lowest leaf blade was 1.94 cm. Ground coverage rate was slower than medium leaf zoysiagrass (Jung-gi), but plant height of 7.1 cm was the lowest among the compared zoysiagrasses and height to lowest leaf of 1.94 cm was lower than most zoysiagrass, which may allow low mowing height.

Comparative Studies on Phytochemicals and Bioactive Activities in 24 New Varieties of Red Pepper (신품종 고추 24종의 phytochemicals 분석 및 생리활성 비교)

  • Huang, Ying;So, Yun-Ji;Hwang, Jeong Rok;Yoo, Kyung-Mi;Lee, Ki-Won;Lee, Yong-Jik;Hwang, In Kyeong
    • Korean Journal of Food Science and Technology
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    • v.46 no.4
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    • pp.395-403
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    • 2014
  • This study aimed to investigate the activities of phytochemical and bioactive components from 24 new varieties of red pepper obtained by crossbreeding different Korean red pepper lines. The ASTA (American Spice Trade Association) color values ranged from 116.69 to 249.83 and the total carotenoid content ranged from 3.19 to 6.11 mg/g dried red pepper. The free sugar content ranged from 43.41 to 199.54 mg/g, and the fructose content was found to be higher than the glucose content. The ascorbic acid, total polyphenol, and flavonoid contents were found to be 8.08-11.53 mg/g, 7.93-14.26 mg gallic acid/g, and 4.24-10.07 mg quercetin/g dried pepper, respectively. Overall, the total polyphenol contents of the new varieties were found to be higher than the average content of Korean red peppers. The total capsaicinoid content in the new varieties varied widely from 0.42 to 237.87 mg/100 g dried pepper. The pepper-methanol extract antioxidant activities of 'variety 2, 4, 8, 9' were higher than others. A high correlation was observed between the antioxidant activities and the polyphenol contents (r=0.804, r=0.701).

신품종 소개 - 사료용 옥수수 신품종 '평강옥, 안다옥'

  • Son, Beom-Yeong
    • 농업기술회보
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    • v.49 no.5
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    • pp.37-38
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    • 2012
  • 옥수수는 다른 사료작물과 다리 가소화 영양분(사료가 가축 등의 대사작용에 이용되는 에너지)이 풍부한 증실(씨알)을 함께 이용하기 때문에 조사료로서의 가치와 농후사료(부피가 작고 섬유소가 적으며 가소화 양분이 많은 사료)로서의 역할을 동시에 지니고 있는 우수한 사료작물이다. 우리나라는 일본에 이어 세계 2위의 옥수수 수입국으로 해마다 900여만톤을 미국, 브라질, 아르헨티나 등으로부터 수입하여 그 중 70% 이상을 소, 돼지, 닭 등 가축의 사료로 이용하고 있다. 올해 미국을 비롯한 세계 주요 곡창지대의 폭염과 지속적인 고온 등 기상여건의 악화로 옥수수 작황이 좋지 않아 생산량 감소에 대한 우려가 커지면서 국제곡물 가격이 치솟고 있어 옥수수 국제가격 상승이 사료비 상승의 주원인이 될 것으로 전망된다. 이에 농촌진흥청에서는 축산경영인들에게 생산비 절감을 위하여 옥수수 등 사료작물을 자체 생산할 것을 적극 권장하고 있다.

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Selection of a New Calanthe discolor Lindle. Cultivar 'Narai' for fragrant plant. (방향성 자생새우란 "나래" 선발)

  • 류정아;이현숙;최경배
    • Korean Journal of Plant Resources
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    • v.17 no.1
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    • pp.54-57
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    • 2004
  • These studies were carried out to develop native Calanthe in Korea. Calanthe native to southern islands in Korea has beautiful flowers with various color and sweet fragrance, and it has been reported to have very good ornamental value. According to the morphological characteristics of leaves and flower color, 57 horticultural lines of Calanthe collected in natural crossing group were investigated. And the selected orchid was given a name of horticultural cultivar to ‘Narai’. In its color of flower, sepal was deep purplish red, petal was yellow and lip was white. And also, ‘Narai’ had strong fragrance and shape of blooming was flat-blooming type.

Selection of a New Calanthe discolor Lindle Cultivar 'Saegdong' for color variation by natural population (자생새우란 화색변이주 "색동" 선발)

  • 이현숙;류정아;최경배
    • Korean Journal of Plant Resources
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    • v.17 no.1
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    • pp.20-23
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    • 2004
  • These studies were carried out to develop native Calanthe in Korea. Calanthe native to southern islands in korea has beautiful flowers with various color and sweet fragrance, and it has been reported to have very good ornamental value. Concerning the classified 57 lines had surveyed their characteristics during the three years, and confirmed which that had manifestation stably. And then, a line was developed and given a name of horticultural cultivar to ‘Saegdong’. The major characteristics of the selected line, ‘Saegdong’, were as follows. In its color of flower, sepal was reddish orange, petal was yellow and lip was yellow. ‘Saegdong’ had a bended-inner blooming type.

A Leaf Vein Density Calculation System Using Blueberry Leaf Images (블루베리 잎 이미지를 이용한 잎맥 밀도 산출 시스템의 구현)

  • GyeongJu Jang;EunSeok Park;DongHwan Choi;YoungGyun Kim
    • Proceedings of the Korea Information Processing Society Conference
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    • 2023.05a
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    • pp.295-297
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    • 2023
  • 채식이 점차 보편화되어감에 따라 소비자를 만족시키기 위한 양질의 작물 생산 및 신품종 개발 필요성도 커져가고 있다. 이 때 식물의 건강 상태나 당도, 식감 등의 품질 조사를 위해서는 표현형 데이터 획득이 필수적이다. 표현형이란 식물의 잎과 줄기, 과실 등에서 겉으로 드러나는 형질을 의미하며, 잎맥밀도도 중요한 표현형 중 하나이다. 하지만 이를 연구자가 수작업으로 조사할 경우에는 시간과 노동력 소모가 크며 측정 인력이나 측정 환경에 따른 오차도 큰 문제점이 있다. 따라서 본 연구에서는 디지털 기술을 통해 잎 이미지에서 잎맥을 추출하여 잎맥 밀도를 분석하는 시스템을 구현함으로써 작물 생산 자동화 및 신품종 개발 효율성 향상에 기여하고자 한다.