Geonpungmi is a new sweetpotato variety developed by Bioenergy Crop Research lnstitute in the National Institute of Crop Science (NICS) at RDA for table use in 2008. This variety was selected from the cross between Mokpo34 and Southern Queen. Two parents, Mokpo34 and Southern Queen, were crossed in 2002. Selection of elite line was performed for 2 years from 2003 to 2004. Preliminary and advanced yield trials were carried out from 2004 to 2005. The regional yield trials were conducted at six locations from 2006 to 2008. Geonpungmi has cordate leaf, greenish purple vine and petiole, elliptic storage root, dark purple skin and yellow flesh color of storage root. This variety is resistant to fusarium wilt and nematode. The starch value and total sugar content were 25.8% and 5.82%, respectively. Pasting temperature of starch in Geonpungmi was 74.7°C, and the retrogradation process is earlier than Yulmi. The average yield of storage root is 19.8 ton/ha in the regional yield trials, which is 3% lower than that of Yulmi. The number of marketable storage roots per plant was 2.6 and the average weight of one storage root was 154 g.
국내 밀의 수량 증진을 위해 이삭 길이가 길고 1수립수가 많은 장수형 164계통(F8)을 육성하였고, 본 연구에서는 이들 계통의 주요 농업형질과 이들 특성과 관련 있는 표지인자에 대한 평가를 수행하였다. 장수형 계통은 모본인 금강밀과 비교했을 때, 단위면적당 수수와 리터중은 적고, 파종 후 출수까지 일수가 길었고, 간장, 수장, 1수립수와 단위면적당 생산량은 높게 나타났다. 농업 특성 관련 표지인자를 평가한 결과, 장수형 계통은 Rht-B1, Rht-D1, Vrn-B1, Ppd-A1, Ppd-B1 유전자 좌에서는 같은 유전자를 지닌 것으로 나타났다. 장수형 계통 중 Vrn-D1를 지닌 계통은 Vrn-D1a를 지닌 계통에 비하여 출수에 걸리는 시간이 길었지만, 이삭길이와 1수립수가 많은 것으로 나타났다. 하지만 Vrn-B1 유전자 변이는 장수형 계통의 농업형질의 차이가 없는 것으로 나타났다. 장수형은 Ppd-D1유전자 변이에 따른 간장이나 이삭 길이는 차이가 없었지만, 출수 일수와 수수는 Ppd-D1b를 지닌 계통이 많았지만, 1수립수, 천립중, 리터중과 수량은 Ppd-D1a를 지닌 계통이 높았다. 종실 특성을 나타내는 표지인자 변이는 출수 일수, 간장, 수장, 분얼이나 1수립수 및 수량에는 영향을 주지 않았지만 TaSus2-2B유전자의 Hap-L타입, TaGW2유전자의 Hap-6A-G타입과 TaCwi-A1a 가 각각의 대립 유전자형보다 천립중이 높게 나타났다. 향후 재배환경이 장수형의 농업형질 및 품질에 미치는 영향에 대한 평가가 필요하고, 만숙과 분얼이 적은 장수형의 단점을 보완하기 위한 지속적인 연구가 필요하다.
농촌진흥청 국립식량과학원에서 논 조건 적응 국수용 품종의 제분율 증가와 붉은곰팡이병 저항성 증진을 목적으로 1996년도에 백립계 춘파 다수성인 Bacanora88을 모본으로 하고, 현재 국내 최대 재배되고 있는 금강밀을 부본으로 인공교배하여 YW2948 조합을 육성하였다. 경기도 연천에서 집단재배 후 계통을 전개하여 초형과 수형이 양호하며 숙기가 빠르고 내한성이 강한 계통인 YW2948-B-B-1-1-1-1-1-1을 2005년과 2006년도 2년간 생산력검정을 거쳐 ‘익산320호’로 계통명을 부여하고, 2007년부터 3개년 동안 지역적응시험을 실시한 결과 숙기가 빠르며 백립계이고, 붉은곰팡이병에 중도 저항성을 나타냈다. 제분율이 높으며 밀가루와 국수 색택이 밝고, 식미감이 우수하여 2009년 농작물 직무육성 신품종심의회에서 ‘중모2004’로 명명하였다. 그 후 국립종자원의 재배심사를 거쳐 2013년 종자산업법제55조에 따라 품종보호 등록 원부에 등록되었다. 중모2004의 파성은 III형으로 양절형이고, 엽색은 녹색이며 이삭은 방추형이고, 종자는 중간크기로 백색이다. 출수기와 성숙기는 밭 조건 조건에서 각각 4월 24일과 6월 4일로 금강밀보다 1~2일 빠르고, 논 조건에서는 각각 4월 21일과 6월 2일로 2일 빠르다. 내한성은 금강밀보다 약하지만 수발아 저항성은 금강밀보다 강하고, 흰가루병과 붉은곰팡이병은 감수성이다. 중모2004의 제분율은 금강밀보다 약간 낮지만, 밀가루의 품질과 국수 가공특성이 비슷한 특성을 보였다. 천립중은 42.5 g으로 금강밀보다 약간 적은 소립이며, 지역적응성 시험에서 밭 조건 수량은 517 kg/10a으로 11% 감소하였고, 논 조건 수량은 534 kg/10a로 금강밀보다 3% 증수하였다.
농촌진흥청 국립식량과학원에서 수확시기가 빠른 국수용밀 품종 개발을 목적으로 1997년도에 조숙 계통인 SW86054 를 모본으로 하고 현재 국내 최대 재배되고 있는 금강밀을 부본으로 인공교배하여 SW97031 조합을 육성하였다. 경기도 연천에서 집단재배 후 계통을 전개하여 초형과 수형이 양호하며 숙기가 빠르고 내한성이 강한 계통인 SW97031-B-47-4-1-5-1-1을 2005년과 2006년도 2년간 생산력검정을 거쳐 ‘익산318호’로 계통명을 부여하고, 2007년부터 3개년 동안 지역적응시험을 실시한 결과 숙기가 빠르며 내한성이 강하고, 백립계이면서 수발아 중도저항성으로 생산안정성이 우수하였다. 밀가루와 국수 색택이 좋고 식미감이 우수하지만 단위면적당 수량 개선이 요구되어 2009년 농작물 직무육성 신품종심의회에서 ‘중모2003’으로 명명하였다. 그 후 국립종자원의 재배심사를 거쳐 2013년 종자산업법제55조에 따라 품종보호등록 원부에 등록되었다. 중모2003의 파성은 III형으로 양절형이고, 엽색은 녹색이며 이삭은 방추형이고, 종자는 중간크기로 백색이다. 출수기와 성숙기는 밭 조건 조건에서 각각 4월 24일과 6월 4일로 금강밀보다 1~2일 빠르고, 논 조건에서는 각각 4월 21일과 6월 2일로 2일 빠르다. 추위와 수발아저항성이 강하고, 흰가루병과 붉은곰팡이병은 감수성이다. ‘중모2003’의 제분율은 금강밀보다 약간 낮지만, 밀가루의 품질과 국수 가공특성이 비슷한 특성을 보였다. 천립중은 42.5g으로 금강밀보다 약간 적은 소립이며, 지역적응성 시험에서 밭 조건 수량은 555 kg/10a, 논 조건 수량은 485 kg/10a로 금강밀보다 4%와 7% 감수하였다.
국립식량과학원에서 수발아와 붉은곰팡이병 등에 대한 내재해성이 강한 국수용 밀 품종 육성을 목적으로 1997년도에 금강밀과 은파밀을 인공교배 한 F1을 모본으로 하고 다시 금강밀을 부본으로 인공교배하여 SW97005 조합을 육성하였다. 경기도 연천에서 집단재배 후에 계통을 전개하여 초형과 수형이 양호하고 내한성이 강한 계통인 SW97005-B-26-5-4-1-1-1을 2005년과 2006년도 2년간 생산력검정을 거쳐 ‘익산319호’로 계통명을 부여하고, 2007년부터 3개년 동안 지역적응시험을 실시한 결과 내한성이 강하고, 수발아 저항성이며 붉은곰팡이병에 중도저항성이고, 수량이 많을 뿐만 아니라 국수가공적성이 우수하여 2009년 농작물 직무육성 신품종심의회에서 ‘수안밀’로 명명하였다. 그 후 국립종자원의 재배심사를 거쳐 2013년 종자산업법제55조에 따라 품종보호 등록 원부에 등록되었다. 수안밀의 파성은 III형으로 양절형이고, 엽색은 녹색이며 이삭은 방추형이고, 종자는 중간크기로 적색이다. 출수기와 성숙기는 밭상태 조건에서 각각 4월 25일과 6월 4일로 금강밀보다 1일 빠르고, 논상태에서는 각각 4월 23일과 6월 4일로 동일하다. 내한성과 수발아 저항성이 강하고 붉은곰팡이병은 중도저항성이다. 수안밀의 제분율은 금강밀보다 약간 낮고, 단백질 함량과 회분함량이 낮아 밀가루 색이 밝고 단백질적 특성은 국수용에 적합하다. 천립중은 43.7 g으로 금강밀보다 약간 적은 소립이며, 지역적응성 시험에서 밭상태 수량은 594 kg/10a, 논상태 수량은 563 kg/10a로 금강밀보다 3%와 8% 증수하였다.
Fusarium head blight (FHB) is a major disease problem on wheat and barley around the world. F. graminearum produces trichothecenes mycotoxins such as nivalenol (NIV), deoxynivalenol (DON), and zearalenone (ZEA). The objectives of this study were to survey the natural occurrence of FHB and mycotoxins of 32 Korean wheat cultivars grown in 2011-2012 seasons at the National institute of crop science, Iksan, Korea. There was great deal of rainfall and high humidity during flowering time in May 2011. FHB incidence was counted by Fusarium infected spikes per square meter. The samples of 32 wheat cultivar were collected. The grain and flour samples were to analysis for DON and NIV by gas chromatography and ZEA by high performance liquid chromatography. The result showed that the average of FHB incidence(%) per square meter in 2011 and 2012 were 4.2%, 0.5% respectively. There were significant cultivar differences for FHB incidence ranged from 0% to 24% in 2011. All of 32 wheat cultivars contained 9-2088 ng/g for NIV and ten wheat cultivars contained 5.7-8.5 ng/g for ZEA. In addition, DON concentration of Tapdong, Shinmichal1, and Hanbaek were 217, 35 and 683 ng/g respectively. However, the grain and flour sample harvested in 2012 showed that lower FHB incidence and NIV concentration. These results showed that the 32 wheat cultivars harvested in 2011 were heavily contaminated with Fusarium mycotoxins (NIV, DON, ZEA).
Amplified fragment length polymorphism (AFLP) is one of molecular marker technique based on DNA and is extremely useful in detection of high polymorphism between closely related genotypes like Korean wheat cultivars. Six Korean wheat cultivar specific marker sets have been developed from inter simple sequence repeat (ISSR) analysis and we can identify the 13 Koran wheat cultivars form other cultivars using six that (Son et al., 2013). We used four combinations of primer sets in our AFLP analysis for developing additional cultivar specific markers in Korean wheat. Twenty-one of the AFLP bands were isolated from ACG/M-CAC primer combination and 19 bands were isolated from E-AGC/M-CTG primer combination, respectively. We used forty bands to design sequence characterized amplified region (SCAR) primer pairs for Korean wheat cultivar identification. Only one of 40 amplified primer pairs, C2, were able to use for wheat cultivar identification. The DNA band of 215bp length was amplified by C2 primer pairs in ten cultivars, Eunpa, Olgeuru, Gobun, Saeol, Milsung, Sinmichal, Jokyung, Sugang, Goso, and Joah. Then C2 primer was applied to these primer sets as newly SCAR marker, six cultivars are identifying from other cultivars, additionally. Finally, to use the C2 and six primer sets, 19 Korean wheat cultivars are identified.
“Sooan”, a winter wheat(Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA. It was derived from the cross “Keumkang/Eunpa//Keumkang” during 1997. “Sooan” was evaluated as “Iksan319” in advance yield trial test in 2006. It was tested in the regional yield trial test between 2007 and 2009. “Sooan” is an awned, semi-dwarf and hard winter wheat, similar to “Keumkang” (check cultivar). The heading and maturing date of “Sooan” were similar to “Keumkang”. “Sooan” had similar test weight (817 g/L) and lower 1,000-grain weigh (43.7g) than “Keumkang” (817 g/L and 46.2g, respectively). “Sooan” showed resistance to winter hardiness and pre-harvest sprouting, which lower withering rate on the low ridge (0.2%) and rate of pre-harvest sprouting (0.2%) than “Keumkang” (9.2 and 25.8%, respectively). “Sooan” showed lower protein content (12.7%), SDS-sedimentation volume (42.0ml) and gluten content (10.5%) than “Keumkang” (13.1%, 57.8ml and 10.8%, respectively). It showed higher lightness (90.08) and lower redness (-1.11) and yellowness (8.80) in flour color than “Keumkang” (89.81, -1.15 and 9.46, respectively). “Sooan” showed higher lightness (81.34) of noodle dough sheet than “Keumkang” (80.28). “Sooan” exhibited lower hardness (3.84N) and similar springiness and cohesiveness of cooked noodles (0.91 and 0.65) compared to “Keumkang” (4.54N, 0.93, and 0.63, respectively). Average yield of “Sooan” in the regional adaptation yield trial test was 5.94 MT/ha in upland and 5.63 MT/ha in paddy field, which was 3% and 8% higher than those of “Keumkang” (579 MT/ha and 520 MT/ha, respectively).
“Joongmo2003”, a winter wheat (Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA. It was derived from the cross “SW86054/Keumkang” during 1997. “Joongmo2003” was evaluated as “Iksan318” in advance yield trial test in 2006. It was tested in the regional yield trial test between 2007 and 2009. Its heading date was April 24 in upland and April 21 in paddy filed conditions, which were two days earlier than those of the check cultivar Keumkang, respectively, and Maturing date was June 4 in upland and June 2 in paddy field, one or two days earlier than those of Keumkang, respectively. “Joongmo2003” showed resistance to winter hardiness and pre-harvest sprouting, which lower withering rate on the low ridge (0.3%) and rate of pre-harvest sprouting (18.5%) than “Keumkang” (9.2 and 25.8%, respectively).“Joongmo2003” showed similar protein content (13.2%), lower SDS-sedimentation volume (54.0ml) and higher gluten content (11.7%) than “Keumkang” (13.1%, 57.8ml and 10.8%, respectively). It showed higher lightness (89.85) of flour and noodle dough sheet than “Keumkang” (89.81 and 80.28, respectively). “Joongmo2003” exhibited similar hardness (3.84), springiness and cohesiveness of cooked noodles (0.92 and 0.63) compared to “Keumkang” (4.54N, 0.93, and 0.63, respectively). The average grain yield in the regional yield trial was 5.55MT/ha in upland and 4.85 MT/ha in paddy field, which were 4% and 7% lower than those of the check cultivar, Keumkang, respectively.
“Joongmo2004”, a winter wheat (Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA. It was derived from the cross “Bacanora88/Keumkang//Keumkang” during 1996. “Joongmo2004” was evaluated as “Iksan320” in advance yield trial test in 2006. It was tested in the regional yield trial test between 2007 and 2009. Its heading date was April 26 in upland and April 23 in paddy filed conditions, and Maturing date was June 5 in upland and June 4 in paddy field, which were similar to Keumkang, respectively. It showed 830 in number of spikes per m2, 35 of grain number per spike, 44.9g of 1,000 grain weight, and 806g of test weight. “Joongmo2004” showed moderate to Fusarium head blight (Scab) in test of specific character although “Keumkang” is susceptible to scab. “Joongmo2004” had higher flour yield (75.5%) than “Keumkang” (72.5% and 0.42%, respectively). “Joongmo2004” showed similar ash (0.42%), lower protein content (12.3%), SDS-sedimentation volume (43.0ml) and gluten content (10.3%) than “Keumkang” (0.42%, 13.1%, 57.8ml and 10.8%, respectively). It showed higher lightness (89.97), redness (-1.38) and yellowness (10.76) in flour color than “Keumkang” (89.61, -1.15 and 9.46, respectively). “Joongmo2004” exhibited lower hardness (3.50N), similar springiness and higher cohesiveness of cooked noodles (0.92 and 0.65) compared to “Keumkang” (4.54N, 0.93, and 0.63, respectively). The average grain yield in the regional yield trial was 5.17MT/ha in upland and 5.34 MT/ha in paddy field, which were lower 11% and higher 3% than those of the check cultivar, Keumkang, respectively.
“Joongmo2012”, a winter wheat (Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA. It was derived from the cross “Sinmichal/Keumkang” during 2006. “Joongmo2012” was evaluated as “Iksan357” in advance yield trial test in 2010. It was tested in the regional yield trial test between 2011 and 2013. Its heading date was May 2 in upland and May 1 in paddy filed conditions, and Maturing date was June 8 in upland and June 8 in paddy field, which were similar to Keumkang, respectively. It showed 628 in number of spikes per m2, 34 of grain number per spike, 47.6g of 1,000 grain weight, and 762g of test weight. “Joongmo2012” showed susceptible to Fusarium head blight (Scab) in test of specific character although “Keumkang” is susceptible to scab. “Joongmo2012” had lower flour yield (68.4%) than “Keumkang” (73.5%, respectively). “Joongmo2012” showed similar ash (0.40%), lower protein content (11.7%), SDSsedimentation volume (39.8ml) and gluten content (8.1%) than “Keumkang” (0.41%, 12.7%, 55.8ml and 9.2%, respectively). It showed higher lightness (92.70) in flour color than “Keumkang” (91.51, respectively). “Joongmo2012” exhibited lower hardness (3.19N), similar springiness and higher cohesiveness of cooked noodles (0.90 and 0.66) compared to “Keumkang” (4.21N, 0.90, and 0.62, respectively). The average grain yield in the regional yield trial was 5.48MT/ha in upland and 4.47 MT/ha in paddy field, which were higher 5% and similar than those of the check cultivar, Keumkang, respectively
Stem rust of wheat caused by Puccinia graminis f. sp. Tritici is historically one of the most important diseases of crops worldwide. The objective of this study was to screen the growth habits and yield of wheat accessions in Korea winter condition. We collected ninety stem rust resistant germplasms from USDA-Grain and planted for the characteristics of growth and yield in 2013. We measured the growth characteristics such as the plant type, leaf color, heading date, stem length, spike length, awn length, number of spikelet, number of tiller, and 1,000 kernel weight (g). Early maturity is most important wheat breeding target in double cropping system such as Korea. Heading dates of ninety cultivars ranged from May 17 to June 7. The Keumkang control cultivar headed on May 23. Heading dates of seventeen accessions had as early as Keumkang control (May 23). The numbers of semi-erect and intermediate type for growth habit were 45 and 33 respectively. The 1000 kernel weights were also measured. Mean 1000 kernel weights ranged from 16.7g (Webster) to 41.8g (123 A1C2). The average of stem length was 100.2cm and Keumkang was 58.4cm. These results showed that A4849-60P-7P-1P (Chile), MG 31492 (Ethiopia), 1338.F.6.C.3.B (Kenya), 1203 A1C2 (Kenya), and II-90-20/3-1R-1M- 3R (Mexico) were best lines for agronomic characteristic such as early heading date and grain yield
Characteristics of agronomy, especially good yield productivity is very important in wheat (Triticum aestivum L.) as human food crop. Development of elite cultivar having good traits is required for food stability. In 2013, a new wheat line called Iksan370 has been developed by the National Institute of Crop Science, RDA. Iksan370 has hard red winter wheat characteristics and better features like resistance to biotic, abiotic stress and higher yield ability than Keumkang. Heading and maturing date were delayed about ten days and period to flowering date was shorter three or four days than Keumkang. Culm and spike length of Iksan370 were 95cm and 15.3cm, averagely. This means that culm and spike length were longer than Keumkang (79cm and 7cm, respectively). It showed higher milling rate (75.5%), protein content (13.5%) and SDS-sedimentation volume (77.5ml) than Keumkang. Genotypes of six genes, GBSSA, B, D, PPO18, Pina and Pinb, were represented that were similar to Keumkang, respectively. Average yield of Iksan370 in the preliminary trial test was 6.61 tons/ha in upland. We expect that yield productivity and farm income were increased by Iksan370.
Fusarium head blight (FHB), primarily caused by Fusarium graminearum is a major disease problem on wheat and barley around the world. The objectives of this study were to evaluate for FHB resistance under greenhouse and filed condition in 2012 and 2013. We screened for Type I resistance in the field using spray inoculation and for Type II resistance in the greenhouse using single floret inoculation. Sumai 3 and Ning7840 were used the FHB resistant check. Five hundred and twelve lines were evaluated for resistance to initial infection (type I) and to spread of symptoms within spike (type II). The inoculum was F. graminearum (GZ3639) prepared at a concentration of 1 X 105 macroconidai/ml with Tween 20. The field screening plots were inoculated twice and mist-irrigation was applied to facilitate FHB development. FHB severity was assessed visually 21 days and determined as the percentage of symptomatic spikelets from the total of all spikelets observed in 20 spikes. Both in the greenhouse and field test, we could observe five categories of FHB severity: resistant (R: 0-20%), moderately resistant (MR: 21-40%), moderate (M: 41-60%), moderately susceptible (MS: 61-80%), and susceptible (S: 81-100%). The results showed that seventy seven lines showed the R and MR category on FHB severity. In addition, nine lines showed similar FHB severity compared to Sumai 3 (13.3%).
식물연구에 있어 다양한 분자마커의 개발은 학문적 그리고 기술적으로 새로운 혁신을 가져왔다. DNA를 이용한 분자마커는 DNA 지문뿐만 아니라 식물의 분류학, 생리학 및 유전공학 등 다양한 분야에서 사용되고 있다. 밀은 옥수수, 벼와 함께 세계 중요 3대 작물 중 하나로서 17,000 Mb의 게놈을 가지고 있어 연구에 많은 어려움이 따르고 있다. 본 연구는 현재까지 보고된 분자마커를 이용한 밀 연구 분야에 관한 보고들을 분석하여 앞으로의 연구 방향을 제시하고자 하였다. 1990년부터 2012년까지 발표된 주요 논문 1,123편을 분석한 결과 유전육종 분야가 38.3%로 가장 높았으며, 분자표지인자와 생리학 분야가 각각 26.9%와 1.5%로 나타났다. 미국을 포함하여 중국, 호주 영국 등 4개국에서 발표한 논문이 전체의 50% 이상을 차지하고 있으며, 이들 국가소속기관 연구소에서 발표된 논문이 전체의 52%로서, 대학보다 활발히 진행되고 있는 것을 알 수 있었다. 특히 밀의 연구는 1992년부터 2007년까지 급격하게 증가하였는데 이것은 밀의 다양한 육종사업과 분자표지인자 기법의 발달이 영향을 미쳤기 때문이다. 그러나 국내 밀의 연구 논문은 88편으로 2008년 이후 대부분 보고되는 것으로 보아 밀의 연구가 매우 늦게 시작된 것을 알 수 있다. 현재까지 국내 밀의 연구는 유전육종 분야에 집중되어 있는 것을 알 수 있다. 국산 밀은 ‘금강’ 등 30 여 품종이 생산량 증가, 재해저항성 증진 등의 목적으로 육성되었다. 예를들어 백립계 제면용으로서 내한성과 붉은곰팡이 중도 저항성을 가지는 ‘한백’, ‘적중’, ‘알찬’, ‘수강’ 등의 품종이 개발되었다. 이와 같이 다양한 목적에 맞는 밀 품종이 육성되어 있기 때문에 이 후의 연구는 용도별 신품종 육성과 함께 국산 밀 품종을 보호하는 방향으로 나아가야할 것이다. 이를 위해선 국산 밀의 기본적인 식물적 특성과 유전적 특성이 확립되어야한다. 최근 국산 밀의 품질 및 품종 판별에 적합한 분자표지인자를 개발하기 위한 다양한 분석방법이 시도되고 있다. 다양한 분자표지인 자 기술 및 개발은 앞으로의 밀 육종사업에 유용한 도구로서 이용가치가 매우 높기 때문에 SSR, ISSR, STS 등의 분자표지인자를 개발하여 국내 밀품종을 보호할 뿐만 아니라, 밀의 수량성 및 고품질과 내재해성 등에 관련된 많은 연구를 통하여 밀의 품질과 수량성 향상에 이용해야 할 것이다.
“Hojoong”, a winter wheat (Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA, Iksan, Korea, during the period from 2006 to 2012. The heading and maturing dates of this variety were May 2 and June 10 in upland, and May 3 and June 7 in paddy field, respectively. It is an It is an awned, semi-dwarf and soft red winter wheat. Culm and spike length of “Hojoong” were 79cm and 9.1cm. It had lower test weight (803 g/ℓ) and 1,000 grain weight (39.5g) than “Keumkang”. It showed resistance to pre-harvest sprouting, which lower rate of pre-harvest sprouting (5.5%) than “Keumkang”. “Hojoong” had lower flour yield (66.7%) and ash content (0.38%) than “Keumkang”. It showed lower protein content (11.3%) and lower SDS-sedimentation volume (34.0㎖) and amylose content (20.5%) than “Keumkang”. It showed higher high viscosity (204BU) and lightness of noodle dough sheet (80.63). It showed different composition in HMW-GS compositios (2.2+12), PPO18 (876bp), GBSS B (null type) and Puroindolines composition compared th “Keumkang”. Average yield of “Hojoong” in the regional adaptation yield trial test was 5.51 ton/ha in upland and 5.10 ton/ha in paddy field. “Hojoong” would be suitable for the area above –10℃ of daily minimun temperature in January in Korean peninsula
“Baechal”, a winter wheat (Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA, Iksan, Korea, during the period from 2006 to 2012. The heading and maturing dates of this variety were May 1 and June 5 in upland, and May 2 and June 8 in paddy field, respectively. It is an It is an awned, semi-dwarf and hard white wheat. Culm and spike length of “Baekchal” were 75cm and 8.7cm. It had lower test weight (794g/ℓ) and 1,000 grain weight (35.7g) than “Keumkang”. It showed moderate to pre-harvest sprouting, which lower rate of pre-harvest sprouting (13.7%) than “Keumkang”. “Baekchal” had similar ash content (0.47%) and protein content (13.1%) to “Keumkang”. It showed lower gluten content (9.6%), SDS-sedimentation volume (38.2㎖) and amylose content (6.5%) than “Keumkang”. It showed higher high viscosity (643BU), water absorption (213%), expansibility of cooking (357%). It showed different composition in HMW-GS compositios (2*), PPO18 (876bp), GBSS (waxy type) and Puroindolines composition compared th “Keumkang”. Average yield of “Baekchal” in the regional adaptation yield trial test was 4.89 ton/ha in upland and 4.83 ton/ha in paddy field. “Baekchal” would be suitable for the area above –10℃ of daily minimun temperature in January in Korean peninsula