Although expression of foreign genes in a crop species has been target techniques for powerful protection against insect pests, classical breeding programs using varietal resistance of a crop are still being processed. It is, however, frequently difficult to find key products expressed from resistance-related genes in the variety, and those action mechanism. Here, an unterminated story about seed of a mungbean (Vigna radiata) variety with high resistance against the adzuki bean weevil and the bean bug is introduced. The two insects cannot survive on seeds of the variety, although they well develop on susceptible ones. Molecular markers linked to the resistance were selected through BAC library screening and near isogenic lines, and finally a bruchid resistance gene was suggested after map-based cloning approaches. Starvation and chemicals were suggested for a resistant mechanism and a related factor through feeding and behavior experiments, respectively. The seed flour was extracted with organic solvents, and isolated into several fractions on chromatography. Several peaks on HPLC in a fraction were related with the high mortality of the bean bug. A partial structure in an isolated chemical was observed before full identification.
본 시험은 친환경농업 및 조사료 용도로 재배가 증가하고 있는 헤어리베치를 대상으로 국내 헤어리베치 종자 채종 시 개화 후 경과 일시에 따른 채종 수량 추이를 조사하여 안전 다수확 채종 기간을 구명하기 위하여 경기도 수원시에 위치한 농촌진흥청 국립식량과학원 시험포장에서 헤어리베치 품종 ‘청풍보라’를 이용하여 2009년부터 2011년까지 3개년에 걸쳐시험하였다. 2009년도는 개화 후 35일 (6월 11일), 42일 (6월 18일), 48일 (6월 24일), 54일 (6월 30일), 58일 (7월 4일) 등 5회, 2010년도는개화 후 35일 (6월 21일), 42일 (6월 28일), 48일(7월 4일), 54일 (7월 10일), 58일 (7월 14일) 등5회, 그리고 2011년에는 개화 후 39일 (6월 21일), 49일 (7월 1일), 53일 (7월 5일) 등 3회 수확하여 종자 수량과 발아율을 조사한 결과 종자 수량은 개화 후 경과 일수와 비례하여 증가하다가 개화 후 42일 (2010년도), 49일 (2011년도), 54일 (2009년도)에 정점을 나타낸 이후 도복으로 인한 꼬투리 소실로 수량이 감소하였다. 수확 시기가 늦어질수록 1,000립 중과 발아율이 증가하였으나 장마기 이후에 수확 된 종자는 수발아 종자 발생이 증가하였다. 이상의본 시험 결과에 의하면 헤어리베치 종자 안전다수확을 위한 수확 시기는 개화 후 42일에서54일 사이에 장마 전 기간으로 판단되었다.
Early maturity of soybean (Glycine max (L.) Merr.) is an important character for double cultivating system with winter crops such as onion or garlic in southern area of Korea. Soybean cultivars released in the past, especially ‘Keunolkong’ was widely cultivated but it was weak at abiotic stress and low yield potential because of too short growing period and short stem height. ‘Hanol’, a new early maturing cultivar showing better abiotic stress tolerant and higher yield potential, was developed from the cross between SS91408 and ‘Hwaeomputkong’, and released in 2009. ‘Hanol’ is, compared to ‘Keunolkong’, Hanol’s growing period is five days longer and its height is 5cm higher. In addition, it showed better excess-water tolerant and 26.5g 100-seed weight. At regional adaptation yield trials (RYT) in six regions from 2007 to 2009, ‘Hanol’ showed 2.04 tons of seed per hectare, 14% higher than ‘Keunolkong’ (1.80ton/ha). ‘Hanol’ is promising for double cropping system with higher yield.
A soybean cultivar for soy-paste, ‘Hwangkeumol’, was developed from the cross between SS92414 (crossing line of ‘Pokwangkong’ and ‘Suwon163’) and ‘Hwaeomputkong’ by soybean breeding team in the National Institute of Crop Science (NICS) in 2010. A promising line, SS99409-2B-11-5-4, was selected and designated as the name of ‘Milyang202’. It was prominent and had good result from regional adaptation yield trials for three years from 2008 to 2010 and released as the name of ‘Hwangkeumol’. It has a determinate growth habit, white flower, gray pubescence, yellow seed coat, yellow hilum, spherical seed shape and large seed (28.6 grams per 100 seeds). Maturity date of ‘Hwangkeumol’ was as early as September 15th. Therefore it is suitable for double cropping system. ‘Hwangkeumol’ was resistant to bacterial pustule and resistant to soybean mosaic virus, the major soybean diseases in Korea and tolerant to lodging in fields. The average yield of ‘Hwangkeumol’ was 2.51 ton per hectare in the regional yield trials carried out for three years from 2008 to 2010.
‘새단백’은 고단백 다수성 콩 신품종육성을 목표로 ‘보광콩’과 ‘수원193호’를 교배한 계통을 다시 단백질 고함유자원인 ‘MD87L’을 모본으로 하여 1999년에 교배하여 계통육종법으로 육성한 품종으로 2010년 12월 농작물직무육성신품종선정위원회에서 국가목록등재품종으로 선정됨과 동시에 ‘새단백’으로 명명하였다. ‘새단백’의 개화기는 ‘대원콩’보다 3일 늦으며, 성숙기는 10월 5일경으로 7일 빨라 등숙기간이 10일 정도 더 짧다. 경장은 64 cm로 ‘대원콩’보다 다소 작으며 도복에 강하고 불마름병에 저항성이며 바이러스와 종자병해에 강하였으나 뿌리썩음병에는 약한 편이었다. 조단백 함량은 ‘대원콩’보다 8.9% 높은 고단백 품종으로, ‘단백콩’보다 연차간 단백질 함량의 변이가 적고, 두부수율과 순두부응고력이 높으며 두부의 물성이 양호하여 두부 가공적성이 우수하다. ‘새단백’의 종실 100립중은 20.7 g으로 ‘대원콩’보다 약 4 g 가벼우나 ‘단백콩’보다 5.7 g 무거운 중립종이며, 수량성은 2.53 MT/ha로 표준품종인 ‘대원콩’에 비해 9% 감소하였으나 ‘단백콩’과는 비슷하였다.
신강은 콩나물 적성이 뛰어나고 농업형질이 우수하나 콩모자이크병에 약한 소원콩을 반복친으로, 콩모자이크병 저항성 유전자 Rsv3을 보유한 L29를 일회친으로 사용하여 육성된 품종이다. 육성기간의 단축을 위하여 분자표지선발법을 사용하여 목표유전자의 도입과 반복친의 회복정도를 신속히 확인함으로써 품종 개발에 소요되는 기간을 7년으로 단축하였다. 신강의 주요 특성을 요약하면 다음과 같다. 1. 유한신육형이며, 꽃색은 자색이고 엽형은 피침형이다. 입형은 구형이고
본 연구는 최근 우리나라에서 급격하게 발생되고 있는 콩 불마름병에 대한 저항성 중간모본을 육성하고자 할 때 marker-assisted selection에 적용할 수 있는 저항성 근접 분자표지를 개발하고자 수행하였다. 1. 불마름병에 이병성인 큰올콩과 저항성인 신팔달콩의 RIL 116 계통에 대하여 콩 불마름병 균주 8ra에 대한 저항성과 연관된 QTL을 탐색한 결과 포장에서는 연관군 B2, D2, I와 K에서, 온실에서는 연관군 D2, C1과 F에서
A new sprout-soybean cultivar, "Pungwon" was developed at the Honam Agricultural Research Institute (HARI), and National Institute of Crop Science (NICS) in 2006. "Pungwon" was selected from a cross between S193001 and Suwon 164. The preliminary, advanced, and regional yield trials for evaluation and selection of this line (Iksan 52) were carried out from 2002 to 2006. This cultivar has a determinate growth habit, white flower, grayish brown pubescence, yellow seed coat, yellow hilum, lanceolate leaflet shape and small seed size (10.9 grams per 100 seeds). The maturity date of "Pungwon" is seven days earlier than that of the check variety, "Pungsan". It has a good seed quality for soybean-sprout. The soybean-sprouts grown from "Pungwon" have high isoflavone (5,935 μg/g) and amino acid (160 mg/g) contents. This cultivar has resistance to soybean mosaic virus (SMV), necrotic symptom (SMV-N), and other most troublesome soybean diseases which are bacterial pustule and black root rot. Especially, "Pungwon" has useful characteristics, such as lodging and shattering resistance. The average yield of "Pungwon" was 3.04 ton per hectare, about 7 % higher than the check variety, "Pungsan" at the regional yield trials (RYT) for double cropping.
A new soybean cultivar for soy-paste, “Mansu”, was developed from the cross between ‘Suwon 192’, which was tolerant to disease, late maturing and high yielding, and ‘Suwon 196’ which was early maturing and large seed by soybean breeding team in the Yeongnam Agricultural Research Institute (YARI) to make new variety having large seed and high yielding. A promising line, SS97213-2B-3SSD-39-1-1, was selected and designated as the name of ‘Suwon 236’. It was characterized by regional yield trials (RYT) for three years from 2004 to 2006 and released as the name of “Mansu”. It has a determinate growth habit, purple flower, grey pubescence, pale green seed coat, yellow cotyledon, large spherical seed (26.5 grams per 100 seeds). Maturity date is 4 days later than the check cultivar, Taekwang. The average yield of Mansu was 2.93 ton per hectare in the regional yield trials (RYT) carried out for three years from 2004 to 2006 which was 7 percent higher than that of the check cultivar, Taekwang.