“Sangbeak” (Perilla frutescens (L.) Britton), is a cultivar for leaf vegetable, from a cross between YPL5 (Ipdeulkkae1/ YCPL187) and “Namcheon” at the National Yeongnam Agricultural Experiment Station (NYAES), RDA, in 2003. The size of fully grown leaf is a important trait in delayed harvesting. The maximum leaf size of “Sangbeak” is 18.5cm, smaller than 21.4cm of a check cultivar, “Ipdeulkkae”1, leading to the constant leaf quality in delayed harvest. The fresh leaf yield of “Sangbeak” is 6% higher than that of “Ipdeulkkae 1” (5029 vs. 4742 kg/10a). For the leaf production, “Sangbeak” could be grown in whole area of South Korea. However, because of its late maturity, seed production culture is available in South Gyeongsang and South Jeolla provinces.

Transformed cassava plants were successfully produced from friable embryogenic calli derived from leaf lobes byAgrobacterium tumefaciens-mediated transformation. We used A. twnefaciens strain LBA4404 containing pCAMmPHY whichcontained a binary vector with

To investigate the application of biochemical markers' and small-sample methods using whole-wheat flours for screening in early generation in Korean wheat breeding system, 74 Korean wheats, including cultivars, local breeding lines and experimental lines, were analyzed. Seed storage protein and amylose contents of grains were evaluated. Biochemical makers, including granule bound starch synthase (GBSS), high molecular weigh glutenin subunits (HMW-GS) and friabilin were also evaluated by using one-dimensional sodium dodecyl sulfate-polyacryla-mide gel electrophoresis with a single kernel. The small­sample methods, including modified SDS-sedimentation test (MST), micro-alkaline water retention capacity (AWRC) and whole-wheat flour swelling volume (WSV) were also tested in this study. Protein content, MST and AWRC was 11.0 - 15.8~% , 2.7 - 26.2 ml and 71.9 - 109.7~% , respectively. Apparent and total amylose content and WSV was 20.6 - 25.0~% , 26.1 - 32.4~% and 9.0 - 16.9 ml, respectively. There were highly significant correlations between MST and AWRC (r=0.592, P<0.001), but Korean wheats showed no significant difference in protein content, amylose content and small-sample methods. In the biochemical markers, Korean wheats contained all three GBSS encoded by Wx loci, except for Suwon 252. Korean wheats showed the high frequency (58.1~% ) of 1Dx2.2 + 1Dy12 subunits of HMW-GS. Friabilin band was present in 46 lines (62.2~% ) and absent in 28 lines (37.8~% ). Friabilin-absence lines showed the higher MST (14.9 ml) and AWRC (92.1~% ) value than friabilin-presence lines (8.5 ml and 82.4~% , respectively).

A new vegetable soybean cultivar, “Dajin” (Milyang 125) was selected from a cross Keunolkong / Josaengbaekjo(Introduction) // Keunolkong, and was developed at the Yeongnam Agricultural Research Institute (YARI) in 2003 on the basis of its yield performanc

A new black seed coat soybean cultivar with green cotyledon, Cheongja 2 was developed at the Yeongnam Agricultural Research Institute (YARI) in 2003. Cheongja 2 was selected from a cross Milyang 70 / Ilpeumgeumjeongkong. The preliminary, advanced and regi