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마(Dioscorea alata L.)의 생육과 수량 특성에 관한 연구
박종인,강윤규,이병영,윤병성,박철호,장광진,Park, J.I.,Kang, Y.K.,Lee, B.Y.,Yoon, B.S.,Park, C.H.,Chang, K.J. 국립한국농수산대학교 교육개발센터 2002 현장농업연구지 = Journal of practical agricultural resear Vol.4 No.1
This study was carried out to determine agronomic and genetic characteristics of the production process in tropical yams(Dioscorea alata L.). To make clear the possibility of cultivation of tropical yams in the Suwon area, the growth of the aboveground parts and the enlargement of tuber of Dioscorea alata, were investigated. The aboveground parts of the plants whose sprouted mother tuber were planted in late April were grown slowly until the 70-days after planting and grown rapidly after. From about 50-days after plantation, total length of vines slowly decreased due to the burning of the branch vines of lower modes. With regard to the branching progressed to 4th for the solo yam and to 6th for purple yam. The secondary branches tended to grow better. When the formation of daughter tubers was observed at the 50-days after planting, their enlargement was very slow. The rapid growth of tubers began at the 40-days and continued to the 90-days. General components such as protein, fiber, and lipid were higher in D. opposita rather than in D. alata. Hardness of D. alata was 2696.2 while that of D. opposita was 4946.9. Lightness of D. alata was 73.99, being higher than that of D. opposita.
도입 마(Dioscorea alata L.)의 특성 분석
장광진,유기억,박철호,박종인,홍규현,박주현,Chang, K.J.,Yoo, K.O.,Park, C.H.,Park, J.I.,Hong, K.H.,Park, J.H. 국립한국농수산대학교 교육개발센터 2001 현장농업연구지 = Journal of practical agricultural resear Vol.3 No.1
A lot of clones of the genus Dioscorea have been introduced from some tropical and subtropical regions since 1997. In 33 clones of water yams (Dioscorea alata L.), some morphological characteristics were investigated at the field. Variation ranges of the total weight and tuber number per stump were within the ranges from 90 to 2,147 g with an average of 610 g ; and 1.3-4.7 with an average of 2.8, respectively. The color tones observed on the tuber-flesh were sorted into 3 color-categories, i.e., white, pale brown and pale purple, and those on leaves were sorted into 3 color-categories, i.e., green, heavy green and purplish green. Intraspecific genetic relationship of 19 variation types of the Yam classified by their external morphological characteristics such as leaf and tuber shape was assessed by DNA using random and specific primers. Twenty two out of 113 primers (100 random[10-mer] primers, two 15 mer [M13 core sequence, and (GGAT)4 sequence]) had been used in PCR-amplification. Only 12 primers, however, were successful in DNA amplification in all of the analyzed plants, resulting in 93 randomly and specifically amplified DNA fragments. The analyzed taxa showed very high polymorphisms(69 bands, 71.0%), allowing individual taxon to be identified based on DNA fingerprinting. Monomorphic bands among total amplified DNA bands of each primer was low under the 50%. Similarity indices between accessions were computed from PCR(polymerase chain reaction) data, and genetic relationships among intraspecific variations were closely related at the levels ranging from 0.66 to 0.90.
분자표지를 이용한 마(Dioscorea spp.)의 다양성 분석
장광진,최익영,박주현,박종인,윤병성,김남수,Chang, K.J.,Choi, I.Y.,Park, J.H.,Park, J.I.,Yoon, B.S.,Kim, N.S. 국립한국농수산대학교 교육개발센터 2002 현장농업연구지 = Journal of practical agricultural resear Vol.4 No.1
A lot of clones of the genus Dioscorea species have been introduced from some tropical and subtropical regions since 1997. The aim of this study was to determine characteristics of the production process in yams(Dioscorea spp). By utilizing 51clones of water yams(Dioscorea spp), some morphological characteristics were investigated at the field. Intraspecific genetic relationship of 51 variation types of the Yam classified by their external morphological characteristics such as leaf and tuber shape were assessed by DNA using random and specific primers. D. Alata and D. opposita were showed different relationship between yield and the growth of their aboveground parts. This suggests that even in the same species there were differences in yield volume and translocation of assimilation products, depending on the types. D. alata were distinguished from others Dioscorea species at 62% level in AFLP analysis. Also in principal component analysis, D. alata were showed the class from II to V.
쓴메밀(Fagopyrum tataricum)의 지역적 적응성 및 수량성
장광진,박종인,강윤규,박철호,Chang, K.J.,Park, J.I.,Kang, Y.K.,Park, C.H. 국립한국농수산대학교 교육개발센터 2007 현장농업연구지 = Journal of practical agricultural resear Vol.9 No.1
This study was conducted to determine the regional adaptability of Fagopyrum tataricum in Korea. Suwon, Chunchon, Kangneung, Yonchon and Taean at different experiment sites had soil pH of 6.52, 5.65, 5.7, 5.89 and 5.82, respectively, being at more unfavorable conditions than a recommended soil condition for yam cultivation with pH 5.8~6.7. The amounts of organic matter in Suwon, Chunchon, Taean, and Yonchon were 1.96%, 4.51%, 3.76%, 1.89% and 1.12%, respectively, being at more favorable conditions than a recommended organic matter in soil for yam cultivation with 2.0~3.0%. As the results from cultivating of large plantings in different regions, Suwon showed grain weight in plant of 7.8g. In seed extract analysis, rutin contents were 44.9mg/100g in F. esculentum and 1475.5mg/100g in F. tataricum., respectively.