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Young Chan Cho(曺永璨),Hak Soo Suh(徐學洙) 한국육종학회 1989 한국육종학회지 Vol.21 No.2
In order to test varietal compatibility, 76 Japonica varieties were crossed to the Tongil type test varieties, Gayabyeo and Milyang 42, and 59 Tongil type or Indica varieties were crossed to the japonica test varieties, Samnambyeo and Milyang 74. Two wild rices, WSP 624 and O. nivara/O. sativa, were crossed to the above four testers. After growing the F₁ plants, the pollen and spikelet fertility were tested. The Tongil type tester Gayabyeo showed relatively high compatibility to the Japonica varieties, however, Milyang 42 showed low compatibility to those. Among the Japonica varieties tested, Nagoyudaka, Gou 1 and Gou 2 were relatively high compatible to Tongil type testers. The Japonica testers Samnambyeo and Milyang 74 did not show high compatibility to Tongil type or Indica varieties. The rice varieties Dourado Precose from Brazil, Huan-Sen-Goo from Taiwan, Kataktara DA 2 from Bangladesh, Azucena from Philippines, NP 125 and Dular from India, TOX 1785 from IITA, Dawn and Zenith from USA were highly compatible to the Japonica testers, Samnambyeo and Milyang 74. The Tongil type variety Gayabyeo was highly Compatible to the wild rices tested.
김우재(Woo-Jae Kim),신운철(Woon-Cheol Shin),김정주(Jeong-Ju Kim),박현수(Hyeon-Su Park),남정권(Jeong-Kwon Nam),백만기(Man-Kee Baek),조영찬(Young-Chan Cho),김보경(Bo-Kyeong Kim) 한국육종학회 2019 한국육종학회지 Vol.51 No.4
‘Seongsan’, an early multi-resistant japonica rice cultivar developed from a cross between ‘Jopyeong’ and ‘Jungmo 1012’, was developed by the rice breeding team of the National Institute of Crop Science, Rural Development Administration. The average heading date at the ordinary planting was July 25th in seven test spots. In response to physiological stresses, premature heading rate was very low and viviparous germination rate was relatively low (15.7%). In response to biotic stresses, ‘Seongsan’ showed resistance to bacterial blight pathogen K1 to K3, rice stripe virus, and blight leaf. The milled rice of ‘Seongsan’ was translucent with relatively clear non-glutinous endosperm and medium short grain. The cooked rice had good palatability compared with that of ‘Chucheong’. The milled rice yield of this variety was approximately 5.52 MT/ha in a three-year local adaptability test. ‘Seongsan’ was an early maturing multi-resistant rice with good grain quality, and it was expected to be used as a representative for maturity diversification of rice cultivation area (Registration No. 7277).
조영찬(Young-Chan Cho),백만기(Man-Kee Baek),박현수(Hyun-Su Park),조준현(Jun-Hyun Cho),안억근(Eok-Keun Ahn),서정필(Jung-Pil Suh),정지웅(Ji-Ung Jeung),이종희(Jong-Hee Lee),원용재(Yong-Jae Won),송유천(Yoo-Chun Song),정응기(Eung-Gi Jeong 한국육종학회 2020 한국육종학회지 Vol.52 No.S
Rice research in Korea during the past 100 years has gone through tremendous changes and improvements as the country underwent a turbulent history of transformation. Full-scale R&D modernization began in the 1970s, when the government focused policy on achieving self-sufficiency in rice in order to establish the foundation for national economic growth. A major landmark was reached by the development of the rice variety “Tongil” and its cultivation technology, which was at the core of the unprecedented Korean “Green Revolution”. Since achieving self-sufficiency in rice, the breeding goal of Korea moved from increasing yield to improving grain quality as more consumers began to seek high quality food products in the 1980s. This change led to the establishment of the high quality rice breeding platform for enhancing the global competitiveness of Korean rice to cope with the opening of domestic rice market in the 2000s. Currently, the major breeding goals in rice are developing premium quality cultivars for table rice and specialized cultivars for boosting processed food industry. To date, the National Institute of Crop Science has released a total of 300 rice cultivars, including 202 table rice and 98 specialized usage cultivars. Diverse technologies have been developed and utilized for breeding new rice cultivars to meet changing needs. In the next 100 years of rice breeding, the convergence of traditional crop improvement technologies and the new breeding technologies utilizing recent advances in biotechnology will play a crucial role in enhancing breeding efficiency.
조영찬(Young Chan Cho),이상원(Sang Won Lee),김용세(Yong Se Kim),문재호(Jae Ho Moon) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
A recent trend in innovation strategy is to move toward Product-Service System (PSS) composed of products and services, that are jointly fulfils diverse consumer demands. Designers should consider not only the products, but also various elements of values from many diverse related issues of products. This paper will introduce examples of applications of various methods needed in PSS design. We present methods to analyze products, users and PSS, to generate new scenarios and PSS, and to improve values and PSS design.