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A New High Yielding, Good Quality and Wet-Direct Seeding Adaptable Rice Variety, “Dongjin 1”
Bo-Kyeong Kim,,Hyun-Tak Shin,,Jae-Gil Lee,,Jae-Kwon Ko,,Moon-Sik Shin,,Jong-Cheol Ko,,Jin-Il Choung,,Ki-Yong Ha,Ki-Yeong Kim,,Yeong-Doo Kim,,Jeong-Kwon Nam,,Yeon-Gyu Kim,,Soon-Cheol Kim 한국육종학회 2005 한국육종학회지 Vol.37 No.5
Dongjin 1 is a new Japonica rice variety developed from the cross between Hwayeongbyeo, a disease resistantand good quality rice variety and HR12800-AC21, a short-culm and high yielding rice line in 1992 and, thereafter, followedof performance of replicated yield trial and local adaptability test.This variety has 145 days' maturing habit from seeding toharvest, 5 days earlier than Dongjinbyeo, in the west southern plain area of Korea. It has short culm, many panicle numberbrown rice. This variety is moderately resistant to leaf blast and grows more resistant under subsequential seded blast nurs-ery test, also resistant to bacterial leaf blight but susceptible to major virus diseases and insect pests.1 is translucent with non-glutinous endosperm, 19.6% amylose content, 7.7% protein content, and 1.25 Mg/K ratio. Espe-cially, cooked rice of this variety is excellent. The percentages of milling recovery and the perfect milled rice grain of thisvariety are 76.6% and 96.3%, respectively. The yield performance is about 5.54 MT/ha, 6% higher than that of Juanbyeo intransplanting and standard nitrogen level of regional adaptability test during three years from 1999 to 2001. This varietywould be adaptable to wet direct seding in the southern plain area and to transplanting in the southern plain area includingChungcheong province.
A Good Palatability and Super-High Yielding New Rice Cultivar, "Hanmaeum"
Bo Kyeong Kim,Ki Young Kim,Jong Cheol Ko,Ki Yong Ha,Jeong Kwon Nam,Jae Kwon Ko,Jae Kil Lee,Jin Il Choung,Hyun Jung Kang,Woon Chul Shin,Chung Kon Kim,Kwang Yong Jung 한국육종학회 2006 한국육종학회지 Vol.38 No.4
Hanmaeum is a new super-yielding japonica rice cultivar developed from a three-way cross of Mi1yang165,YR16365Acp13 and Iksan438 at Honam Agricultural Research Institute (HARI), RDA, in 2004. This cultivar has about 119 daysgrowth duration from transplant
A New High-Yielding and Good-Quality Rice Cultivar "Sindongjinbyeo"
Bo Kyeong Kim,Hyun Tak Shin,Jae Kil Lee,Jae Kwon Ko,Bo Gab Yang,Tae Hwan Noh,Yang Ho Oh,Seung Yeob Lee,Ki Yong Ha,Jong Seok Kim,Jeong Kwon Nam,Hyun Jung Kang,Jong Cheol KoSoo 한국육종학회 2003 한국육종학회지 Vol.35 No.4
Sindongjinbyeo is a new japonica rice cultivar developed from a cross between Hwayeongbyeo and YR13604Acp22 line by the rice breeding team of National Honam Agricultural Experiment Station (NHAES), RDA, in 1999. This cultivar has a large grain and about 1
A new mid-late maturing rice variety「Subo」with a good grain quality and for direct seeding
Man-Kee Baek,Woon-Chul Shin,Jong-Cheol Ko,Bo-Kyeong Kim,Jeong-Kwon Nam,Ki-Yeong Kim,Mun-Sik Shin,Ki-Yong Ha,Hyeon-Su Park,Hyeon-Jung Kang,So-Hyun Baek,Young-Jun Mo,Jae-Kwon Ko,Woo-Jae Kim,Young-Bok Le 한국육종학회 2013 한국육종학회 심포지엄 Vol.2013 No.07
‘Subo’ is a new japonica rice variety developed by a cross breeding between HR21124-B-59 and HR19567-B-70-3 having a good Phenotype with a multi-resistance and high yield elite line. The new variety developed for direct seeding by the rice breeding team in Rice Breeding and Cultivation Research Division, Department of Rice and Winter Cereal Crop, NICS, RDA in 2012. The heading date of this variety is August 13 and earlier than that of check variety, Nampyeongbyeo, by two days. ‘Subo’ has 72cm of culm length and 104 spikelets per panicle in direct seeding cultivation. This variety showed resistance to bacterial leaf blight and rice stripe virus and have germinating ability in sumerged soil conditions. The milled rice of this variety exhibits translucent and very clear non-glutinous endosperm. ‘Subo’ has much better palatability of cooked rice than that of Nampyeongbyeo. The whole grain rate of milled rice are 86.9% and milled rice recovery of are 74.6%. The yield of ‘Subo’ in direct seeding cultivation is 5.55MT/ha in milled rice. ‘Subo’ could be adaptable to the southern part plain area of Pyeongtaek and southwestern in Korea.
A New High-yielding and Good-quality Rice Cultivar ?Sobibyeo Adaptable to Low Fertilizer Level
Bo Kyeong Kim,Hyun Tak Shin,Jae Kil Lee,Jae Kwon Ko,Tae Hwan Noh,Mun Sik Shin,Yang Ho Oh,Yeong Doo Kim,Hong Kyu Park,Jin Il Choung,Yeong Tae Lee,Hyun Soon Kim,Soo Yeon ChoSeo 한국육종학회 2003 한국육종학회지 Vol.35 No.3
“Sobibyeo” is a new japonica rice cultivar developed from a cross betw een Hwayeongbyeo and YR13604Acp22 line by the rice breeding team of National Honam Agricultural Experiment Station (NHAES), RDA, in 1999. This cultivar has a large grain and about 119
Effects of Nitrogen Level and Seedling Number on Panicle Structure in Japonica Rice
Bo Kyeong Kim,Ki Young Kim,Myung Kyu Oh,Mun Sik Shin,Jae Kwon Ko,Jae Kil Lee,Hee Kyoung Kang 韓國作物學會 2003 한국작물학회지 Vol.48 No.2
Four different rice varieties, Sindongjinbyeo, Dongjin #1, Saegyehwabyeo, and Iksan 467, were transplanted under three different nitrogen levels and two different seedling numbers per hill to obtain basic information on panicle traits under different cultural conditions and to propose the ideal panicle structure in Japonica rice. Sindongjinbyeo and Iksan 467 were characterized by more primary rachis branches (PRBs) per panicle and more grains on PRB than other cultivars. The two varieties also had fewer secondary rachis branches (SRBs) per PRB and fewer grains on SRB per PRB. These characteristics, consequently, resulted in higher ripened grain rate, contrary to that of Dongjin #1 and Saegyehwabyeo. In the correlation coefficient analysis, PRB number per panicle and grain number on PRB per panicle were positively correlated with ripened grain rate, while SRB number per panicle, number of grains on SRB per panicle, SRB number per PRB, number of grains on SRB per PRB and grain number per panicle were negatively correlated with ripened grain rate. Therefore, the number of grains on PRB per panicle, SRB number per PRB and the number of grains on SRB per PRB were the appropriate criteria for determining and achieving higher ripened grain rate in rice. High ripened grain rate over 90% was obtainable with over 12.5 PRBs per panicle and 63 grains on PRB per panicle, and with under 1.7 SRBs per PRB, 5 grains on SRB per PRB, 130 grains per panicle, and 14 panicles per hill. The study recommended that for over 90% high ripened grain rate, the critical limiting factors should be under 2 SRBs per PRB, 6 grains per PRB, and 130 grains per panicle, irrespective of the PRB number per panicle and the number of grains on PRB.