• Korean Journal of Plant Taxonomy
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• v.44 no.3
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• pp.175-177
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• 2014

A new speices, Potentilla gageodoensis M. Kim found in Is. Gageodo, Jeollanamdo Province, Korea, is firstly named and described. This species is similar to its related species P. fragarioides in having several characteristics like pinnately compound leaves, pubescent leaf blades and leaf petioles, different leaflets size, absent stolons, etc., but is distinct from P. fragarioides which has thin leaf textures, 7-13 leaflets, elliptic terminal leaflets, small petal size, and ciliate leaflet margin by having thick leaf textures, 5 leaflets, broadly ovate terminal leaflets, large petal size, and densely white ciliate leaflet margin.

• Korean Journal of Plant Taxonomy
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• v.48 no.1
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• pp.37-42
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• 2018

A new species, Potentilla baekdusanensis M. Kim, is described here. It is found in Baekdusan Mt., Korea. Potentilla baekdusanensis shares several characteristics (pinnately compound leaves, pubescent leaf blades and leaf petioles, different leaflets size, and absent stolons) with the related species P. fragarioides. However, this new species has small plants with short and curved hairs, 7 leaflets, small lower leaflets, a glabrous leaflet margin, and yellow petals with a reddish yellow base. In contrast, P. fragarioides are large plants with long and straight hairs, 9-15 leaflets, large lower leaflets, a ciliate leaf margin, and yellow petals without a reddish yellow base.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.4 no.1
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• pp.52-56
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• 2001

Experiment was performed to investigate the effect of light intensity on growth and flowering status of Korean native Dianthus superbus var. longicalycinus, Sedum middendorifianum, Hemerocallis aurantiaca, Iris ensata var. spontanea and Aquilegia buergeriana var. oxysepola for effective landscaping. Number of floret and flower stalk per a plant were markedly increased under full sun(about 100,000lux), and decreased with decreasing light intensity in all tested plants. This result indicate that it will be cultivated in the open for promote landscaping values. However, leaf area and plant height were more increased under half sun(22,000lux) than open(100,000lux) or shade(7,700lux) in all plants except Sedum middendorifianum. Especially, Hemerocallis aurantiaca had same number of shoot and leaf size, even if planted under shade condition to show a wide adaptation to various light intensities.

• Agrochemical news magazine
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• v.23 no.3 s.176
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• pp.45-47
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• 2002

• Korean Journal of Plant Taxonomy
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• v.49 no.1
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• pp.28-69
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• 2019

We conducted taxonomical investigations based on morphological characteristics, fruit morphology, and literature research on the tribe Potentilleae (Rosaceae) in Korea covering seven genera and 24 species. The style position on the ovary and the shape of style were useful characteristics for the classification of subtribal and generic levels in the tribe Potentilleae. The subtribe Fragariinae is characterized by subbasal or lateral style on the ovary and anthers with one theca. The subtribe Potentillinae has a subterminal style on the ovary, except for Argentina, which presents a subterminal and lateral style and anthers with two thecae. These results support the recent taxonomic recognition that i) the tribe Potentilleae consists of two subtribes, and ii) genera such as Dasiphora, Comarum, and Sibbaldianthe sometimes included in Potentilla s.l. are treated as independent genus. In the subtribe Potentillinae, Argentina, which has been treated as Potentilla, is supported as a distinct genus according to the characteristics of the subterminal and lateral style position and the ventral stipular auricles. In Fragaria, F. nipponica subsp. chejuensis, which has generally small leaves and a limited distribution only on Hallasan Mt., is supported by treatment as an endemic species. Duchesnea chrysantha is distinguished from D. indica by the characteristics of light green or yellowish green leaves, thin and somewhat membranous leaflets, and broad ovate or obovate leaflets. Each complex of P. dickinsii and P. chinensis remains unresolved with regard to controversy over the taxonomic circumscription due to their external morphological variations. Additional taxonomical research and molecular population studies are required for a more in-depth understanding of the tribe Potentilleae in Korea.

• Journal of Life Science
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• v.16 no.6
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• pp.898-903
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• 2006

The genetic diversity and population structure of fifteen Potentilla discolor Bunge populations in Korea were determined using genetic variations at 19 allozyme loci. Fourteen of the 19 loci (73.7%) showed detectable polymorphism. Genetic diversity at the species level and at the population level was high ($H_{ES}\;=\;0.215$, $H_{EP}\;=\;0.196$, respectively), whereas the extent of the population divergence was relatively low $(G_{ST}\;=\;0.069)$. Total genetic diversity values $(H_T)$ varied between 0.0 and 0.656, giving an average overall polymorphic loci of 0.292. The interlocus variation of genetic diversity within populations $(H_S)$ was high (0.274). On a per locus basis, the proportion of total genetic variation due to differences among populations $(G_{ST})$ ranged from 0.010 for Pgm-2 to 0.261 for Pgd-2 with a mean of 0.069, indicating that about 6.9% of the total allozyme variation was among populations. Wide geographic ranges, perennial herbaceous nature and the persistence of multiple generations are associated with the high level of genetic variation in P. discolor. The estimate of gene flow based on $G_{ST}$ was high among Korean populations of P. discolor (Nm = 3.36).

• Journal of Life Science
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• v.17 no.9 s.89
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• pp.1217-1223
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• 2007

I investigated the reproduction system of nine natural populations of P. discolor in Korea and two Mongolian P. conferta populations. The measurements of 19 quantitative or qualitative morphological characters were taken on each of total individuals directly from their natural habitats. Multivariate principal component analyses (PCA) were conducted to detect differences among populations consid-ering several characters simultaneously of variances using the statistical analysis system. 19 morpho-logical characteristics between Korean Potentilla species and Mongolian Potentilla species showed a slight heterogeneity of variance. The length of internodes (LFL and LSI) and characteristics of root (LLR and NOR) were shown a significant difference between two species (P<0.05). The number of ra-mets in P. conferta decreased with increasing geographic distance from viviparity. However, P. discolor has most ramets at distance intervals $60{\sim}80$ cm. In light conditions, P. discolor was significantly less resilience than P. conferta. In drought conditions, although there was not shown significant difference, P. conferta was less resilience than P. discolor. The core analysis indicates that P. conferta is the more resistant species than P. discolor and usually propagates by clonal growth during several strong envi-ronmental disadvantages such as drought events.

• Landscaping Tree
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• s.110
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• pp.20-22
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• 2009

햇볕이 잘 드는 양지 잔디밭이나 풀밭에 씀바귀들이 한창 피어나는 계절이다. 꽃이 노란 씀바귀나 좀씀바귀, 약간 흰색인 선씀바귀, 종종 그 중간색을 띠는 개체도 보인다. 잔디밭에 나는 것들은 잡초로 뽑아버리기 아까울 정도로 꽃이 아름답다. 이 중 좀씀바귀는 키가 작으면서 포복지로 잘 번식하며 꽃은 물론 잎 모양도 정연하여 적당한 공간에 관상 및 지피용으로 훌륭한 식물이다.

• Journal of Korean Society of Forest Science
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• v.107 no.3
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• pp.258-265
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• 2018

This study was conducted to investigate the effective cryopreservation condition of Potentilla discolor Bunge, a rare native plant. Seed viability was more than 80% in PVS2 and PVS3 solution treatments. Seed viability was higher in PVS3 than PVS2 treatment. Seed viability was lower than control in spite of sucrose pretreatment. The germination rate was 95% at 60 min of PVS2 treatment and 30 min of PVS3 treatment but the germination rate was low at other treatments. The growth of the seedling wasn't doing that of the control except for treat PVS2 and PVS3 solution for 30 min. There was no statistically significant difference between the encapsulation method and the vitrification method in the seedling growth between the two cryogenic storage methods. This study is expected to be applied to future conservation methods of Potentilla discolor.

• Landscaping Tree
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• s.90
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• pp.19-21
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• 2006

전국어디서나 쉽게 볼 수 있는 개나리는 봄이 오면 노란 꽃망울을 피워 우리의 가슴을 설레게 하는 봄의 전령이다. 노란 꽃은 병아리와 비유되어 어린 아이의 귀엽고 깜찍한 모습과 비교되는 우리와 매우 친숙한 나무이다. 전국의 어디서나 음지, 양지, 모두에서 잘 자라며 추위와 건조에도 매우 강하고, 공해와 염기에도 강하여 울타리 조성용, 조경수, 관상수 등으로 널리 보급되어 우리의 생활주변에 자리 잡은 나무이다. 개나리나무에 개나리잎벌, 좀검정잎벌, 식나무깍지벌레 등이 기생하여 피해를 주고 있어 이들에 대한 간략한 생태 및 방제법을 기술하고자 한다.