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장정희(Jung-Hee Jang),최병렬(Byoung-Rourl Choi),원태진(Tae-Jin Won),이지혜(Ji-Hye Lee),이종형(Jong-Hyeong Lee),한상욱(Sang-Wook Han),장재은(Jae-Eun Jang),서재순(Jae-Soon Seo),지정현(Jung-Hyeun Ji),박인태(In-Tae Park),최해춘(Hae-Chun 한국육종학회 2021 한국육종학회지 Vol.53 No.2
‘Jungdream’ is an early maturing, high-quality rice cultivar developed in 2017 by the crop breeding team at Crop Research Division,GARES, Hwaseong, Korea. ‘Jungdream’ was first developed in 2008 from crossing a medium-late maturity cultivar ‘Chilbo’ and an early maturitycultivar ‘Ungwang’. The heading date of this cultivar is July 28thin the Gyeonggido Province. Its culm length is 63 cm, and it has 19 paniclesper hill and 82 spikelets per panicle. It is a medium-small grain brown rice cultivar with a 1000-grain weight of 20.6 g. Its cold toleranceis lower than that of ‘Hwaseong’, which is the standard cultivar in the central region, as is its degree of lodging tolerance. ‘Jungdream’ isresistant to rice blast and stripe virus diseases but is susceptible to bacterial leaf blight and other viral diseases and pests. The appearance ofmilled ‘Jungdream’ rice is clear, and its amylose content is 16.5%, which is lower than that of ‘Hwaseong’. The palatability of cooked ‘Jungdream’rice is better than that of ‘Chucheong’, which is the main cultivated crop in Gyeonggido. Its milling ratio is 75.0%, which is lower than thatof ‘Hwaseong’. The yield of milled ‘Jungdream’ rice was 5.42 MT/ha in the local adaptability tests during standard cultivation in four regionsfrom 2015 to 2017. ‘Jungdream’ is highly adaptable to the environmental conditions in the Gyeonggido Province (Registration No. 8236).
장정희(Jung Hee Jang),지정현(Jung Hyeun Ji),한상욱(Sang Wook Han),박중수(Jung Su Park),최병열(Byoung Rourl Choi),김희동(Hee Dong Kim),도현용(Hyeun Yong Do),김순재(Soon Jae Kim),최해춘(Hae Chun Choi),김광호(Gwang Ho Kim),조영찬(Young 한국육종학회 2018 한국육종학회지 Vol.50 No.3
‘Matdream’ was derived from a cross between ‘Yeongdeok34(Pungmi)’ and ‘Ilpumbyeo’ in 2001. This variety had a heading date of August 8 in Gyeonggido. It had a semi-elect plant type and resistance to lodging with strong culm. Its culm length was 78 cm. This variety had 12 tillers per hill and 122 spikelets per panicle. It was a medium grain variety, and the 1,000 grain weight of brown rice was 22.2 g. Its cold tolerance was stronger than that of ‘Hwaseongbyeo’. This variety had wind tolerance. It was moderately resistant to rice blast diseases and had stripe virus resistance, but was susceptible to bacterial leaf blight, other virus diseases, and insect pests. Its appearance of milled rice was clear and its milled rice had lower amylose and protein contents than that of ‘Hwaseongbyeo’. Its palatability of cooked rice was better than that of ‘Chucheongbyeo’, which was harvested in Suwon. Its head-rice percentage after milling was 74.4%, which was higher than that of ‘Hwaseongbyeo’. The yield of milled rice was 5.17 MT/ha under the ordinary culture of the local adaptability test in four areas of Gyeonggido for three years. Under early transplanting cultivation, its yield of milled rice in 2011 was 5.69 MT/ha in the central plain area, Suwon. ‘Matdream’ was highly adaptable to the Gyeonggido area, especially to the northern region of Han River (품종보호번호: 제5087호).