‘보원’은 단경, 소분지 계통인 ‘SP8603-16-2-B(찌바한다치 /대광땅콩)’를 모본으로 하고 내병, 대립 특성을 가지는 대원 땅콩을 부본으로 하여 2001년도에 작물시험장에서 육성한 품 종이다. ‘보원’은 신풍초형(Arachis hypogaea ssp. fastigiata) 으로 키가 작고 지상부 생육 습성이 완전 직립형이다. 분지수 가 적고 꼬투리가 달리는 포기주변 반경이 작아 기계화 재배 에 유리하며 조숙형이다. 협당립수는 2립이고 종피색은 살색 이며 100립중이 ‘대광땅콩’보다 더 무거운 91 g으로 대립종 에 속한다. ‘보원’은 그물무늬병 저항성이 ‘대광땅콩’ 보다 강 하며 수확기의 낙엽정도가 대광땅콩보다 낮고 도복저항성도 ‘대광땅콩’ 보다 더 높다. ‘보원’의 수량성은 지역적응시험에 서 3개년간 평균수량이 3,720 kg/ha으로 ‘대광땅콩’ 보다 12 ～18% 증수를 보여 전국평균 17%의 증수를 보였고 연차간 및 지역간 변이가 ‘대광땅콩’ 보다 적어 수량안정성이 높다.

Objective The aim of this work was to ascertain whether the memory disturbance following scopolamine administration and the neuroprotective effect of could be evidenced in global cerebral ischemia by evaluating improved cognitive capacity in the rats. Materials and Methods Neuronal cell density was measured by counting viable cells in the left and right CA1 regions of three coronal sections of 30 um. Behavior test; Acquisition deficits after ischemia.. Use passive avoidance test. Results Neuroprotective effect of GB at 100mg/kg is 87.3%. Representative photomicrographs of cresyl violet-stained hippocampal regions of either sham-operated animals(A,B) or animals that had been subjected to 10 min ischemia followed by the treatment with either saline (C,D) or 100mg/kg of Ginkgo biloba (E,F). Boxed regions in A, C, and E are shown in B, D, and F, respectively. The 10 min ischemia caused selective and delayed neuronal cell loss in the hippocampal CA1 region (C,D). In contrast, GB treatment conferred neuroprotection by markedly reducing the number of damaged pyramidal cells in the CA1 subfield (E,F). Scale bar is 100 um. Effect of GB on scopolamine induced memory deficits in the passive avoidance test. At 30 min after trainining trials, scopolamine(1mg/kg i.p.) or the same volume of saline was administered to rats. At 30 min after scopolamine injection, the rats were treated with GB(100mg/kg). Acquisition trials were carried out 30 min after GB treatment. At 24 hr after acquisition trials, the test trials were carried out. Data represents mean ± SEM (n=6).

Angelica acutiloba cultivar developed by a medicinal crop breeding teamof the National Institute of Crop Science during the period from 1993 to 204. The cultivar was selected from Jinbu local variety.Jinil has a green stem color. It has a broader leaf bla

This study was carried out to investigate the difference of growth characteristics, yield and extract content between upland and paddy ginseng cultured with 4­year-old ginseng in 2003. Although upland ginseng showed larger variation in yield than that of paddy ginseng, the average of it was greater than that of paddy ginseng because it showed better growth of aerial part and higher survival rate than that of paddy ginseng. Moisture content of fresh root was 71.8~%~;(68.5~~73.1~%),~;and~;72.7~%~;(70.2 ~~74.9~%) on average in upland and paddy ginseng, respectively. Paddy ginseng showed higher hardness in taproot, and higher rate of rusty colored root than that of upland ginseng. The ratio of taproot dry weight in upland ginseng was smaller than that of paddy ginseng, while that of lateral root was larger in upland ginseng. Ratio of marketable root (>60g) to total harvested roots was 13.7~%~;(0.82~~8.0~%)~;and~;7.7~%~;(1.6~~12.6~%) in upland and paddy ginseng, respectively. Extract content did not show distinct difference between upland and paddy ginseng, but it showed large variation from 16.1~;to~;25.1~% in taproot, and from 24.2~;to~;32.5~% in lateral root depanding on the ginseng field examined.

The growth and flowering of the sesame is continued till ripening stage, and the seeds of sesame fall out of capsule following maturation. The indeterminate inflorescence and shattering habit of sesame cause to yield loss at the harvesting and inhibit the

“Daeyou” was developed at the National Crop Experiment Station, RDA in 2001 through the crossing lines of high oil content Yeupsildlkkae and Heukim's hybrid line and it was combined by Pakesa and low seedcoat ratio variety Suwon 8 in 1991. Daeyou has grey

“Kwangim” was developed at the National Crop Experiment Station, RDA in 2001 through induced mutations breeding by EMS treatment on the Suwon 38 perilla seeds in 1993. Kwangim has dark brown seedcoat colour with abundant and long clusters. Anthesis of Kwa

“Dasil” was developed at the National Crop Experiment Station, RDA in 2001 through induced mutation by γ-ray irradiation on local perilla accession “Yechon” in 1994. Dasil is characterized as short plant height, dark-brown seedcoat color, medium size of s

This study was carried out to investigate varietal differences on growth characteristics under the conditions of PE film-mulching and non-mulching in sesame. At maturing stage from 76 to 95 days after sowing, Yangbaeckkae, non-branching plant type, under non-mulching showed larger leaf area index (LAI) than that of film-mulching, while plant height and the number of capsules per plant were similar to those of film-mulching. LAI of Ahnsankkae, branching plant type, under non-mulching was similar to film-mulching, while plant height and the number of capsules per plant were smaller than those of film-mulching. Net assimilation rate (NAR) of two varieties under non-mulching was lower at seedling stage from 25 to 35 days after sowing but higher at flowering stage from 45 to 55 days after sowing. At maturing stage from 66 to 77 days after sowing, NAR and crop growth rate (CGR) of Yangbaeckkae under non-mulching were greater than those of film-mulching, whereas those of Ahnsankkae under non-mulching were lesser than those of film-mulching. Yield under non-mulching was decreased by 7 % in Yangbaeckkae and 33 % in Ahnsankkae compared with that of film-mulching, therefore Yangbaeckkae was more adaptable for non-mulching than Ahnsankkae. Main factors decreasing yield of Yangbaeckkae under non-mulching were small LAI, NAR, and CGR at the stage of young seedling, and small number of capsules at early maturing stage from first flowering to 20 days after first flowering.

This study was carried out to investigate varietal variation of dry matter production, and to classify varieties on the basis of dry matter production, and to analyze relationships between seed yield and dry matter production in 28 germplasm. Descending o