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KMID : 1098420220300020089
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Korean Journal of Medicinal Crop Science
2022 Volume.30 No. 2 p.89 ~ p.98
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Differences of Morphological Characteristics and Lignan Components of Leaves by Distyly and Fruiting Habits in Uiseong Local Germplasm of Forsythia spp.
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Kim Kwan-Su
Park Si-Hyung
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Abstract
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Background: Forsythia species is used as an herbal medicine and landscape plant. The fruit setting rate, floral morph (distyly), and morphological characteristics and lignan components of leaves in Uiseong local Forsythia germplasm were investigated to select the elite lines for fruit setting.
Methods and Results: A total of 23 Forsythia germplasm were collected in Uiseong area, Korea.
Each germplasm planted in Uiseong was investigated for the rate of fruit set in March and October, floral distyly; pin (long-styled morph) and thrum (short-styled morph), in March, and stem color, leaf length, leaf width, petiole length and leaf serration in July. Additionall, lignan components (matairesinol, pinoresinol, arctigenin, phillygenin and their glycosides) in leaves of each germplasm were analyzed using HPLC-MS. Two leaf types, Leaf I and Leaf II of Forsythia germplasm, were grouped based on fruit set, distyly, leaf shape, chromatogram of lignan components and stem color. Leaf II germplasm had longer ovate leaves with lesser serration and more lignan components than Leaf I germplasm. Most of Leaf II plants had successful fruit set, a pin flower, and green stem.
Conclusions: We confirm that Leaf I germplasm is Forsythia koreana (Rehder) Nakai and Leaf II germplasm is Forsythia viridissima Lindl., consistent with previous results.
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KEYWORD
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Forsythia spp., Distyly, Fruiting Habit, Leaf Shape, Lignan Component, Uiseong Local Germplasm
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