This study was carried out to produce more Parasenecio firmus in forest farming. In order to achieve thispurpose, it was surveyed the growth and photosynthetic characteristics of P. firmus. Relatively light intensity was controlledby 100%, 60%, 30% and 5% of full sunlight. Height was the highest under 5% of full sunlight. Shoot diameter was the high-est in full sunlight. Fresh weight (leaf, stem, root and total) and dry weight (leaf, root and total) were the highest under 30%of full sunlight. S (leaf+stem)/R (root) ratio was the lowest under 30% of full sunlight and the highest under 5% of full sun-light. In leaf characteristics, leaf area, SLA and LAR were getting higher in the lower light level and the highest under 5% offull sunlight (176.1㎠, 420.5㎠•g−1 and 123.5㎠•g−1). Especially, leaf area was surveyed higher under 30% of full sunlightin the next. Leaf thickness was getting lower in the lower light level and the lowest under 5% of full sunlight (overall0.14~0.24㎜). As a result of surveying the whole experiment, P. firmus grows well under 30% and 5% of full sunlight inforest farming.

This study was carried out to establish a proper cultivation site and diagnose the drought tolerance of Pleurospermum camtschaticum, Cirsium setidens and Parasenecio firmus leaves by using pressure-volume curves. The result of ψosat and ψotlp were lower in Pleurospermum camtschaticum leaves. On the other hand, it appeared that Emax of Pleurospermum camtschaticum was approximately six times higher than that of Parasenecio firmus. The values of RWCtlp is all above 88% showing that the function of osmoregulation is somewhat better, and Vo/DW, Vt/DW, Ns/DW of Pleurospermum camtschaticum leaves were approximately 2~4 times Lower than other ones. Thus, responses to water relations of Pleurospermum camtschaticum, Cirsium setidens and Parasenecio firmus such as ψosat, ψotlp, Emax, ψP,max, RWCtlp were shown that the Pleurospermum camtschaticum leave was higher drought tolerance than Cirsium setidens and Parasenecio firmus leaves.

This study was carried out to investigate the ecological characteristic of native Parasenecio firmus population in Korea and China. The survey quadrates were located in the middle of the native P. firmus habitats. According to the field survey, the habitats of P. firmus were classified into same Tilia amurensis community in tree layer. The investigation of native habitat in Korea shows that P. firmus inhabited deciduous forest from with T. amurensis, Acer pictum subsp. mono, Carpinus cordata and Acer pseudosieboldianum, which was similar to vegetation structure of Mt. Laoling in China. The result of the cluster analysis which uses SYN-TAX 2000 program, dissimilarity from 53% level was on a large scale divided at 2 units. The research revealed 96 taxa in total, in which 51 families, 81 genera, 21 varieties, 5 forma, 1 sub-species and 67 species were checked in the flora of the native P. firmus habitats.

한국산 박쥐나물속(Parasenecio)의 외부형태학적 형질 및 체세포 염색재수의 분류학적 가치를 평가하기 위하여 본 연구를 수행하였다. 외부형태학적 형질인 초장, 경생엽수, 잎의 모양, 엽병 형태, 총포편수, 소화 수, 암술대의 털 존재 유무, 소화의 가는 통부와 법은 통부의 비, 열매의 크기 등이 종을 식별하는 형질로 가치를 지니고 있었으며, 이러한 형질을 기초로 할 때, 귀박쥐나물(Parasenecio. auriculata var. auriculata), 나래 박쥐나물(P. auriculata var. kamtschatica), 민박쥐나물(P. hastata subsp. orientalis), 참나래박쥐(P. koraiensis), 병풍쌈(P. firmus), 어리병풍(P. pseudotaimingasa)의 6분류 군에 대한 국내의 분포를 확인할 수 있었으나, 게박쥐나물(P. adenastylodes)과 박쥐나물(P. auriculata var. matsumurana)의 분류학적 위치 및 국내 분포 여부에 대하여 추후 연구되어야 할 것으로 생각되었다. 게박쥐나물과 귀박쥐나물, 나래박쥐나물, 민박쥐나물, 병풍함과 어리평풍의 체세포 염색제수는 모두 2n=60이었으며, 이중 게박쥐나물과 귀박쥐나물, 나래박쥐나물, 민박쥐나물은 일본산과 중국산의 염색계수와 일치하였으며, 병풍쌈과 어리병풍의 체세포 염색체수는 본 연구에서 처음으로 밝혀졌다.