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KMID : 1098419970050030206
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Korean Journal of Medicinal Crop Science
1997 Volume.5 No. 3 p.206 ~ p.210
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Effect of Leaf and Stem Blight on Growth and Root Yield of Paeonia lactiflora Pallas
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Park So-Deuk
Kim Se-Jong
Kim Jae-Cheol
Kim Ki-Jae
Shin Jong-Hee
Choi Boo-Sull
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Abstract
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The pathogenic fungi associated with blight of leaf and stem in peony were leaf spot (Alternaria sp.), powdery mildew (Erysiphe aquilegiae) and rust (Cronartium flaccidum). The infection of leaf spot and powdery mildew begins from late April to midMay and rust was infected in early June. Blight time of aerial part in peony started from late May and the ratio of blight on leaf and stem was more than 50% in late Aug. Yields of root by the incidence time of blight of leaf and stem were 69.1% in late June, 65.4% in late July and 87.6{sim}92.7% in August and September. The number of root of more than 10mm in root diameter blighted in late June and July was much lower than in August, but the paeoniflorin content in the former was much higher than the latter.
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KEYWORD
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Paeonia lactiflora, Pathogenic fungi, Blight, Paeoniflorin
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