간식용 대립 땅콩의 선호도가 높음에 따라 대립 양질 다수성 신품종 육성을 위하여 단경 다수성인 ‘CUP brittle’과 조숙인 ‘대광’를 인공교배하여 육성한 조평의 주요 특성을 요약하면 다음과 같다. 조평은 버지니아 초형으로 개화기가 빠르고 지상부 생장습성은 직립 단경 다분지성이다. 조평은 대광땅콩에 비해 성숙협수, 성숙협비율등 양호한 등숙특성을 보이며 100립중이 87g인 대립품종이다. 도복은 매우 강한 특성을 나타내며 갈반병, 그물무늬병, 흑반병에 비교적 강하고 낙엽율도 낮아 생육 후기까지 녹엽 유지에 유리하였다. 조평은 단백질이 30.9%, 기름함량이 43.1%이고 양질지방산중 올레산과 리놀산의 비율이 2.1로 산화안정성이 양호한 특성을 가진다. 조평은 3년간 지역적응시험 결과 대광땅콩에 비하여 전국평균 8.37ton/ha로서 11% 증수되었다. 조평은 개화가 빠르고 병해에도 강한 편이나 충분한 성숙을 위하여 강원도와 산간 고냉지를 제외한 지역에서 적응성이 높은 품종이다.

간식용 풋땅콩의 선호도가 높음에 따라 대립 양질 다수성 신품종 육성을 위하여 자색종피인 ‘HYQ(CG)S-10’와 다수성인 ‘신광땅콩’을 인공교배하여 육성한 참원의 주요 특성을 요약하면 다음과 같다. 참원은 신풍초형으로 주경과 분지에서 개화 및 착협하고, 지상부 생장습성은 직립 소분지성이다. 참원은 팔광땅콩에 비해 성숙협수는 같으나 100립중이 90g으로 5g 더 높은 대립품종이다. 갈반병, 그물무늬병은 팔광땅콩 보다 강하고 낙엽율도 낮아 생육후기까지 녹엽 유지에 유리하였다. 참원의 기름함량은 25.8%, 단백질이 31.3%로서 팔광땅콩에 비해 높고, 탄닌함량이 낮고 유리당 함량이 높아 풋땅콩의 품질이 양호하다. 참원은 3년간 지역적응시험 결과 대광땅콩에 비하여 풋땅콩이 전국평균 8.93MT/ha로서 18%, 종실이 3.95ton/ha로서 4% 증수하였다. 참원은 개화가 빠르고 병해에도 강한 편이나 충분한 성숙을 위하여 강원도와 산간 고냉지를 제외한 지역에서 적응성이 높은 품종이다.

The high-performance liquid chromatography(HPLC) method for the determination of trans-resveratrol in 34 germplasms and processing methods of peanut seeds has been modified. Peanut germplasms contained trans-resveratrol contents of 0.14~4.96μg/g, but findings for the testa color were not significant. However, two germplasms, 'KIGAN' and 'CS1', contained more trans-resveratrol contents than the other germplasms. The contents of their were 2.26μg/g and 4.96μg/g. The tested processing methods caused no significant changes in trans-resveratrol contents. The contents of fresh, boiled, and roasted peanuts were 0.36, 0.32, and 0.40μg/g, respectively in cv. Palkwang, and 0.22, 0.22, and 0.26μg/g, respectively, in cv. Jakwang. Differences were not significant among fresh, boiled, and roasted peanuts. The grains of 'Palkwang' and 'Jakwang' contained trans-resveratrol contents of 0.34μg/g and 0.24μg/g, and testa contained 1.12μg/g and 1.00μg/g, respectively. However, when comparing absolute quantity, the trans-resveratrol contents appears to be approximately 3~4 times higher in the testa than in the grain of the peanut, although the total contents were not different because the ratio of testa was low in peanut seeds.

The purpose of this study is to establish an extraction and analysis method for α-tocopherol, and to then distinguish among varieties. The α-tocopherol contents of 22 varieties of peanut seeds were analyzed by HPLC. Peanut seeds of cv. Palkwang were processed in two ways, by boiling and roasting. The α-tocopherol contents of the two types of peanuts were compared with fresh seeds without any processing. α-Tocopherol was detected at a retention time of 2.95 minutes. Five standards of α-tocopherol covering a range of 20~100μg/ml were made up in 2% isopropyl alcohol/n-hexane and analyzed in duplicate. The α-tocopherol contents differed according to extraction temperature. The contents were 85μg/g or less at 10℃ and 20℃ and 94μg/g at 30℃, but they were decreased at 40℃ or higher. The α-tocopherol contents in 22 peanut varieties were 61.36~96.80μg/g according to variety. Fresh peanuts contained 106.7μg/g of α-tocopherol, while boiled peanuts contained 108.8μg/g of α-tocopherol, and roasted peanuts contained 109.2μg/g of α-tocopherol.

This experiments were conducted to evaluate suitable plant-type and cultivars for producing fresh pod peanut from late seeding as succeeding crop, compared with early seeding as proceeding crop or single cropping. 12 cultivars according to grain weight and plant types, 6 virginia typed cultivars(ssp. hypogaea) and 6 shinpung typed cultivars(ssp. fastigiata), were used for early and late seedings. The plant growth and yield potential in early seeding were better than those in late seeding. But the ratios of dry/fresh pod and of mature pod in late seeding were higher than those of early seeding. The yield of fresh pod by cultivars in two seeding times showed significant correlation with pod scale such as fresh pod weight, 100-grain weight, and dry seed yield positively, but pod number negatively in early seeding only. Yield of fresh peanut between Virginia and Shinpung types didn't show significant difference in early seeding, but showed in late seeding. Average yield of Virginia typed cultivars showed significantly higher than that of Shinpung typed ones. This yield gap between two plant types was the same tendency on extending seedings to July 20.

and the very short stem cultivar "Satonoca". "Sangpyeong" with Virginia plant type has more branch number with early floweringand ellipse-shaped large kernel, compared with the check cultivar. Each pod has two grains with brown testa and 100 seed weightwa

A new vegetable peanut cultivar "Baekan" (Arachis hypogaea ssp.fastigiata. L.) was developed at the Yeongnam Agri-flowering and long ellipse-shaped large kemel. Each pod with very shallow constriction had two grains with brown testa and 100 seed weight wa

Resveratrol, which is both a phytoalexin with antifungal activity and a phytochemical associated with reduced cancer risk and reduced cardiovascular disease, is synthesized in a limited number of plant species including peanut. Resveratrol synthesis is catalyzed by the enzyme stilbene synthase including resveratrol synthase (RS). Resveratrol synthase gene (RS3) obtained from peanut, Arachis hypogaea, Fabaceae has been transferred into chinese foxglove, Rehmannia glutinosa by using Agrobacterium mediated transformation. RS t-DNA introduced to chinese foxglove (R. glutinosa L) by transformation and its reaction product, resveratrol-3-O-β-D-glucoside was isolated and characterized using HPLC. Also its biological effects was tested in inhibition of the lipid peroxidation of mouse LDL by glycosylated stilbenes derivatives obtained from transgenic plants. Resveratrol-3-O-β-D-glucoside isolated from transgenic R. glutinosa L. showed antimicrobial activity of the growth inhibition zone against Escherichia coli and Salmonella typhimurium. Therefore, this compound can be contributed to be useful as a phytoalexin for plant health as well as a phytochemical for human health.

A new vegetable peanut variety “Bakjung(Arachis hypogaea L.)” was developed from the cross between Shindaekwang and Suwon94 at the Honam Agricultural Research Institute and Yongnam Agricultural Research Institute, National Institute of Crop Science in 200

A new peanut (Arachis hypogaea L.) variety “Jakwang” was developed from the cross between HYQ(CG)S-10 and Suwon 101 by the Yongnam Agricultural Research Institute(YARI) and Honam Agricultural Research Institute(HARI) in 2003. This variety has Shinpung typ

A new peanut variety “Kokwang(Arachis hypogaea L.)” was developed from the cross between Florigiant and Tifapan at the Honam Agricultural Research Institute in 2003. This variety has shinpung type and erect growth habit with midium size obovate dark green

A new peanut variety “Daemyung(Arachis hypogaea L.)” was developed from the cross between SP8703-2-2 and SP8708-4-1 at the Honam Agricultural Research Institute, National Institute of Crop Sciencee in 2003. This variety belongs to shinpung type with erect

Peanut (Arachis hypogaea L.) mutants were induced by the gamma ray with 300 Gy of Co-60 irradiation using the seed of cultivar Shinnamkwang. BTM3-9 and BTM5-19 lines were selected in M₃ generation and then segregated. In M₈ generatio

Peanut (Arachis hypogaea L.) mutants were induced by the gamma ray with 300 Gy of Co-60 irradiation using the seed of cultivar Shinnamkwang. BTM3-9 and BTM5-19 lines were selected in M3 generation and then segregated. In M8 generation, the yield potential