This study was conducted to investigate the mixed seeding of 5 forage barley varieties (youngyang, yuyeon, dami, wooho, soman) with 1 malting barley variety (hopum). Yield of the mixed seeding was compared with each single seeding and variety combinations. Yield of mixed seeding combination was higher than each single seeding. In mixed seeding of ‘Youngyang’ and ‘Hopum’ (50% and 50% ratio), ‘Yuyeon’ and ‘Hopum’ (70% and 30% ratio), ‘Dami’ and ‘Hopum’ (50% and 50% ratio), ‘Wooho’ and ‘Hopum’ (50% and 50% ratio) were higher yield of dry weight than yield of other mixed ratios. Most of all, mixed seeding of ‘Dami’ and ‘Hopum’ were high yield mixed seeding (ratios of 50% each other). In generally, the yields of barley mixed seeding with malting barley ‘Hopum’ were high production. The forage quality of mixed seeding combination was higher than any each single seeding. ‘Youyeon’ 50% and ‘Hopum’ 50% ratio was more higher

This study was conducted to evaluate effect of plants number per hill (PNH) on growth and yield of sorghum in drained paddy field for 2 years. Crop growth and development and yield in the field was examined to know the efficiency of proposed cropping system. At seeding after 40 days, leaf number and stem diameter were highest at 1 PNH plot, on the other hands, plant height was at 5 PNH plot the 1st and 2nd, respectively. The harvest stage, 5 PNH plot was highest culm length of 183, 188 cm the 1st and 2nd, however, culm diameter was lowest. Culm length of sorghum was highest by 183, 188 cm at 5 PNH plot also, culm diameter was thickest by 19.18, 20.13 mm at 1 PNH, respectively. Yield components of ear length, seed number per ear and 1000-seed weight were highest at 1 PNH the 1st and 2nd, respectively. As yield of sorghum was highest at 2 PNH plot 344 kg․10a-1, 382 kg․10a-1 yearly, respectively that it were in order of 1 PNH plot > 3 PNH plot > 4 PNH plot > 5 PNH plot.

‘수안’은 국립식량과학원 벼맥류부에서 2010년에 육성한 고품질 직파적응 내도복 복합내병성 품종이다. ‘수안’의 출수 기는 담수직파에서 8월 15일로 ‘주안벼’보다 1일 늦으며, 보통기 보비 이앙재배에서는 평균 출수기가 8월 10일로 ‘남평 벼’보다 6일정도 빠른 중생종이다. 간장은 담수직파에서 74 cm로 ‘주안벼’보다 4 cm 크고 이앙재배에서는 ‘남평벼’와 비 슷하며 담수직파시 m 2당 수수와 수당립수는 ‘주안벼’보다 적 고 등숙비율이 높으며, 현미천립중은 25.4 g으로 ‘주안벼’보 다 무겁다. 내냉성 검정에서 유묘적고는 ‘남평벼’와 비슷한 반응을 보였고, 출수지연일수가 ‘남평벼’에 비해 2일 정도 길 으나 임실률은 47%로 ‘남평벼’에 비해 높은 편이다. 등숙기 수발아율은 22%로 ‘남평벼’보다 높고 포장도복은 강한 편이 다. 도열병, 흰잎마름병(K1～K3) 및 줄무늬잎마름병에 저항 성이나 기타 바이러스병 및 벼멸구류 등의 해충에는 저항성 이 없다. 단원형이며 쌀 외관은 심복백이 없고 ‘남평벼’ 수준 으로 맑고 투명하다. 단백질 함량 및 아밀로스 함량은 각각 6.5% 및 19.5%이며 밥맛은 ‘남평벼’ 수준이다. 제현율, 도정 율은 ‘남평벼’보다 다소 높으나 백미완전립률은 낮은 편이었 다. 쌀 수량성은 담수직파 6개소 및 건답직파 4개소에서 각각 5.47 MT/ha, 5.56 MT/ha로 ‘주안벼’보다 9% 증수 되었으며, 보통기 보비재배에서는 5.80 MT/ha으로 ‘남평벼’ 대비 4% 증수하였다.

청담'은 중부지방 적응 중생 직파적성 품종을 육성할 목적으로 SR19200-HB826-34와 '주안벼'를 인공교배하여 2003년에 SR22320-3-4-1-2-1을 '수원498호'로 계통명을 2004년부터 2006년까지 3년간 지역적응시험을 실시한 결과, 그 우수성이 인정되어 2006년 12월 직무육성 신품종 선정위원회에서 국가목록등재품종으로 선정됨과 동시에 '청담'으로 명명하였는바, 그 주요 특성을 요약하면 다음과 같다. 1. '청담'의 평균출수기는

Direct-seeding method on dry paddy soil could make rice farming large-scale cultivation and cost-saving, but it has still some problems on poor seedling establishment caused by low temperature and varying sowing depth. This research was carried out to identify weedy rice genetic resources that may help to poor seedling establishment in direct-seeded rice on dry paddy soil in temperate region. The genetic resources screened in this study were 128 accessions that consist of 92 japonica weedy rices, 24 indica weedy rices, and 12 Korean bred cultivars.The weedy rices on average have very superior abilities to emerge form depth than cultivated rice. The germplasm showed that the coleoptile or/and mesocotyl lengths were positively correlated with emergence rate to a high degree. Among the germplasm, WD-3, a japonica weedy rice, evidenced the highest level of emergence with the longest coleoptile and mesocotyl elongation. The emergence ability of WD-3 depending on the burial depth under low temperature condition was confirmed in both the phytotron and the field conditions. WD-3 showed 100% of emergence rate until a burial deptho f 7 cm in the dry soil in the phytotron, and 76.2 % of very high emergence rate in the total layer of paddy field where the seeds were sown from the surface to 10 cm depth. In the emerged plants in the field, the mesocotyl elongation increased with increasing burial depth in a logarithmic fashion, and the coleoptile extension increased exponentially. The total elongation lengths of the mesocotyl and coleoptile were similar with a plant burial depth, which indicated that they could induce the safe emergence of the main leaf of the seedling from the soil to thesurface. Conclusively, the elongation habit of mesocotyl and coleoptile of WD-3 could be one of the important characteristics to develop direct-seeding cultivars.

Hopum is a new japonica rice cultivar developed from the cross between Milyang165 and F1 crossing Milyang165 and Iksan438 at Department of Rice and Winter Cereal Crop, NICS, RDA, in 2006. This cultivar has a short grain shape and about 141 days growth duration from direct seeding to harvesting in the southern plain including Chungcheong province. This cultivar has short culm and spikelet number per panicle is similar to that of Nampyeongbyeo, while filled grain rate is lower than standard variety. This cultivar has medium size of brown rice and shows moderate resistance to leaf blast, to bacterial blight pathogens of K1, K2 and K3 and stripe virus disease but susceptible to major virus diseases and insect pests. The milled kernel of Hopum is translucent with non-glutinous endosperm. Protein and amylose content of Hopum is about 6.5% and 18.7%, respectively. This cultivar has better palatability of cooked rice than Chucheongbyeo harvested in Gyeongki province. Its milling recovery (76.8%) and percentage of perfect-shaped milled rice (94.7%) were higher than Nampyeongbyeo. The milled rice yield of Hopum was 5.83 MT/ha (15% higher than Juan) under wet-direct seeding, 5.66 MT/ha (8% higher than Juan) under dry-direct seeding, and 6.00 MT/ha (8% higher than Nampyeong) under ordinary transplanting cultivation. “opum”would be adaptable for ordinary transplanting and direct seeding in the southern plain including Chungcheong province.

“Hoanbyeo” is a new japonica rice cultivar developed from a cross between Kanto149 and Milyang95 by the rice breeding team of National Honam Agricultural Experiment Station (NHAES), RDA, during 1990 to 1998. This cultivar requires about 121days of growth

Kwanganbyeo is a japonica rice variety developed from the cross between Namyang 7 and SR14779-HB234-31, anelite line derived from the cross between Cheonmabyeo and Aichi 37 at the National Crop Experiment Station, RDA, and washi-tecture and light-dark gre

Junganbyeo is a japonica rice variety derived from a cross of Namyang 72* Hapcheon 1 by the rice breeding team ofNational Crop Experiment Station, RDA, in 1999 and was released in 2000. This is a medium-early variety with growth durationtdark gren leaves.