‘Okjeon’ rye (Secale cereale L.) was developed by the National Crop Experiment Station (NCES). It was released in 2001 because of its excellent earliness and yield potential. ‘Okjeon’ was developed from an open pollination with 20 rye lines in 1984. Subse
Diversity and relatedness of 64 rice accessions were evaluated using 85 simple sequence repeats (SSRs) markers. These64 accessions represent a set of international and Korean blast diferential cultivars, a set of blast monogenic lines, donors of blastresi
A new malting barley cultivar, “Sinho”, with a resistant gene (rym5) to barley yellow mosaic virus (BaYMV) was developed by the barley breeding team of National Crop Experiment Station (NCES), RDA in 1999. This cultivar was derived from the cross between
“Jaeanchal” is a new six-rowed, naked and waxy barley cultivar developed by National Crop Experiment Station (NCES), RDA in 2001. This cultivar was derived from a cross between “Suwon261” and “SB881115-6” in 1989. The final selection was made at NCES in 1
Sanglog', a new covered barley cultivar resistant to powdery mildew and barley yellow m osaic virus (BaYMV) was developed by the barley breeding team of the National Crop Experim ent Station (NCES), RDA in 1999. This variety was derived from a cross betwe
A new two-rowed naked waxy barley cultivar, 'Pungsanchal', was developed for split polished grains by the National Crop Experiment Station(NCES), RDA in 2001. This cultivar was derived f rom a cross between 'SB901258GG-B' and 'Suwon212' in 1991. The f ina
Through earlier breeding efforts, portions of the genome of the wild species Oryza grandiglumis (2n=48) have been introgressed into the rice cultivar, Hwaseongbyeo (Oryza sativa spp. japonica). Hwaseongbyeo was used as recurrent parent and O. grandiglumis
An efficient system of rice microspore culture could contribute to the production of genetically modified rice. The microspores were isolated by mechanical or shed methods. The number of microspores per 100 anthers isolated at uninucleate stage was higher than (or similar to) those at binucleate stage in isolation method with pestle or spatular, but microspore divisions were not easily observed on both stages. On the other hand, pollen division in shed pollen culture was observed more frequently at uninuclear than at binuclear stage. Cold pretreatment at 10~circC for 10 days resulted in the best multicellular division to produce microcalli at 12.5% efficiency in shed microspores. Heat shock at 33~circC for one hour before or after pollen shedding enhanced cell division and callus formation. Out of twelve green regenerants, two were haploids and ten were diploids based on the chromosome analysis of root tips. The size of stoma was 12m m in haploids and 15 ~mu~textrmm in diploids determined by scanning electron microscope (SEM).
Transgenic plants from hypocotyl segments of buckwheat were produced with the Agrobacterium strain LBA4404 harboring the binary vector pBI121 containing chimeric genes of neomycin phosphotransferase II (npt II) and β -glucuronidase (gus). Two weeks after co-cultivation with Agrobacterium, most of the hypocotyl segments gradually became brown and died on the selection medium containing 100mg/~ell of kanamycin. Plants regenerated from the hypocotyl explants grown on selection medium were GUS-positive in the leaf, stem and vascular tissues by histochemical assay, and varied in gus activity (440-2568 pmol, 4-MU/mg protein) by fluorimetry. The plants showing GUS activity were confirmed of containing GUS and NPT-II genes by polymerase chain reaction (PCR). Within 3 months, transgenic buckwheat plants were able to obtained from the hypocotyl segments.
Molecular markers have become fundamental tools for crop genome study. The objective of this study was to construct a genetic linkage map for cowpea with PCR-based molecular markers. Five hundred and twenty random RAPD primers were screened for parental polymorphism. Ninety RAPD markers from sixty primers was segregated in 75 F2 mapping population derived from the cross of local cultivars GSC01 and GSC02. 70 RAPD markers were found to be genetically linked and formed 11 linkage groups. Linkage map spanned 474.1 cM across all 11 linkage groups. There are six linkage groups of 40 cM or more, and five smaller linkage groups range from 4.9 to 24.8 cM. The average linkage distance between pairs of markers among all linkage groups was 6.87 cM. The number of markers per linkage group ranged from 2 to 32. The longest group 1 spans 190.6 cM, while the length of shortest group 11 is 4.9 cM. This map is further needed to be saturated with the various markers such as RFLP, AFLP, SSR and more various populations and primers. In addition, morphological markers and biochemical markers should be united to construct a comprehensive linkage map
Jung, Hyun-Sook. 1999. Eine textlinguistische Untersuchung zur Artikel und Thema-Rhema-Gliederung. Studies in Modern Grammar 95-122. Die Textlinguistik betraf die Kritik die traditionelle Beschra¨nkung der Grammatik auf den Satz als unabha¨ngige und damit oberste linguistische Einheit und fu¨hrte zur Untersuchung transphrastischer, d. h. u¨ber den Satzrahmen hinaus wirkender grammatischer Erscheinungen in einer Textlinguistik. In den letzten Jahren ist im Bereich des Faches Deutsch als Fremdsprache bei den Lehrern ein wachsendes Interesse am didaktischen und methodischen Fragen der Textlinguistik im Unterricht zu bemerken. Als ein Schwerpunkt bescha¨ftige ich mich mit dem Thema eine textlinguistische Untersuchung zur Artikel und Thema-Rhema-Gliederung. Diese Erkenntnisse sollen helfen, das Textversta¨ndnis und die Fa¨higkeit zur eigensta¨ndigen Textproduktion bei deutschlernenden Koreanern zu verbessern. Das Ziel meiner Arbeit ist dabei, die Ursachen fur Lernschwierigkeiten zu beschreiben, mit denen aufgrund der linguistisch-stillistischen Unterschiede in deutschen und koreanischen Sprachen fu¨r die Reduzierung dieser Lemschwierigkeiten. Anschlie β end werden einige Konsequenzen fu¨r die Textkoha¨renz bzw. Die Praxis der Textproduktion und des Textversta¨ndnisses aufgezeigt. Dieser Aufsatz wurde von meiner Dissertation gea¨ndert und erganzt.