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울릉도 섬현삼( Scrophularia takesimensis Nakai) 개체군의 식생과 토양특성
한경숙 ( Kyeong Suk Han ),김무열 ( Mu Yeol Kim ),서강욱 ( Gang Uk Suh ),권혜진 ( Hye Jin Kwon ),송호경 ( Ho Kyung Song ) 한국환경복원기술학회 2010 한국환경복원기술학회지 Vol.13 No.1
This study was carried out to analyze vegetation and soil characteristic, and ordination of Scrophularia takesimensis population, Ulleung Island. The Scrophularia takesimensis population was classified into Aster spathulifolius for. oharai dominant population, Vitis amurensis dominant population and Scrophularia takesimensis typical population. The Scrophularia takesimensis population was located in elevation of 1m to 6m, in Ulleung Island. In the study sites, soil organic matter, nitrogen, available phosphorous, exchangeable potassium, exchangeable calcium, exchangeable magnesium and exchangeable sodium concentration, and cation exchange capacity, and soil pH were 9.1~19.1%, 0.19~0.52%, 87.1~196.7mg/kg, 2.0~2.8cmol+/kg, 5.4~5.9cmol+/kg, 5.9~8.8cmol+/kg, 4.4~4.8cmol+/kg, 20.3~ 26.7cmol+/kg, and 6.8~8.0, respectively. The Vitis amurensis dominant population was mainly found in the high percentage of total nitrogen, organic matter, CEC in comparison with Aster spathulifolius for. oharai dominant population.
오혜진(Hye Jin Oh),이종석(Jong Suk Lee),김진호(Jin-Ho Kim),김상용(Sang Yong Kim),서강욱(Gang Uk Suh) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.1
We report a technique for obtaining seeds of ‘Cheongnarae’ (a variety of Hosta minor cultivated at the Korea National Arboretum in 2019) by artificial crossing of H. minor, collected from Jeju Island, as the female parent and H. minor ‘Krossa Regal’, cultivated outside Korea, as the male parent. Among the individuals obtained after sowing, those that showed different morphological characteristics, such as leaf shape and color, were selected. Among these individuals, those with thick leaves and light-colored flowers were further selected. Vegetative propagation and cultivation steps were repeated for evaluation of the characteristics. ‘Cheongnarae’ has relatively thicker leaves and a darker color (RHS 137A) than the control variety ‘Black Hills’ and has wings at the point where the petiole meets the leaf blade. The shape of the leaf blade edge is clearly sinuous, and the flower color is close to white (White N155B). ‘Cheongnarae’ cultivated in this way can be used for pot plant or gardening.
자생지 우점수종의 산마늘 발아 및 유묘 생장에 미치는 잠재적 알렐로파시 효과
정미진 ( Mi Jin Jeong ),송현진 ( Hyun Jin Song ),김학곤 ( Hak Gon Kim ),서영롱 ( Yeong Rong Seo ),임현정 ( Hyeon Jeong Im ),서강욱 ( Gang Uk Suh ),최명석 ( Myung Suk Choi ) 한국임학회 2014 산림과학 공동학술대회 논문집 Vol.2014 No.-
알렐로파시 효과 구명을 위해 수종은 울릉도 산마늘 자생지의 우점종인 너도밤나무, 우산고로쇠를 내륙지역 산마늘 자생지 우점종인 신갈나무, 그리고 내륙지역 산지에 가장 많이 분포하는 소나무와 잣나무에 대해 산마늘 종자발아와 실생묘의 생장에 미치는 영향을 조사하였다. 각 수종의 잎을 산마늘종자의 발아율 및 생장을 측정하기 위해 낙엽처리, 분쇄잎 처리, 그리고 냉·열수 추출물을 각각 처리하였다. 그 결과, 낙엽처리에서는 53~58%로 상대적으로 발아율이 높았고, 분쇄된 잎을 인공토와 섞어처리하였을 때 산마늘의 발아력이 가장 낮게 나타났다. 수종 중에서는 소나무 처리구가 가장 산마늘의 발아율을 억제시켰으며, 지상부 생장에도 부정적인 영향을 주었다. 냉·열수 추출물을 다른 농도로 처리하였을 때 5% 소나무 추출물이 산마늘 종자의 발아를 가장 억제하였고, 전체적으로 냉수추출에서는 침엽수인 소나무와 잣나무 처리에서 낮은 발아를 보였다. 자생지 우점종인 너도밤나무 처리는 산마늘종자의 발아와 실생묘 생장에 큰 영향을 주지 않았지만, 열수추출된 활엽수 추출물은 산마늘의 종자발아와 실생묘 생장에 부정적인 영향을 주었다. Allelopathic effect of a dominant tree species on A. victorialis var. platyphyllum habitat were investigated using fallen, grinded leaves and aqueous extracts. Fallen leaves showed germination percentage in 53~58%. Seed germination on grinded leaves was inhibited significantly compared to fallen leaves feeding. Fallen leaves of Pinus densiflora were significantly inhibited on seedling growth compared to other tree species. Root growth of seedling was inhibited in 3g treatment of Acer okamotoanum, P. densiflora and Pinus koraiensis fallen leaves. P. densiflora and P. koraiensis in inland area inhibited the seed germination and seedling growth which indicates that plants may possible allelopathic activity. Cold and hot aqueous extracts of 5 tree species caused a reduction in germination percent, seedling vigour index. Tolerance index was significantly low as 5.0% in 5% extract of P. densiflora and exhibited unique pattern on seed germination according to deciduous or conifer tree. Cold aqueous extracts of the P. densiflora revealed the strong inhibitory effect on germination, with hot aqueous extracts of deciduous trees exhibiting lower germination percentage.