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Germination inhibition by 5,7-dihydroxychromone, a flavanoid decomposition product

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Abstract

5,7-Dihydroxychromone1 isolated from seeds ofPolygonum lapathifolium L. inhibits the germination of velvetleaf (Abutilon theophrasti Medic) seeds. Effective molar concentrations ranged from 1 mM to 6 mM. Flavanoids reported or suspected to cause inhibition were not active at concentrations above 10 mM. Compound1 is a flavanoid moiety and can be formed during catabolic degradation, but its role in the allelopathic activity attributed to flavanoids remains to be determined.

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Authors and Affiliations

  1. Northern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 61604, Peoria, Illinois

    Gayland F. Spencer & Larry W. Tjarks

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  1. Gayland F. Spencer
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  2. Larry W. Tjarks
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The mention of firm names or trade products does not imply that they are endorsed or recommended by the U.S. Department of Agriculture over other firms or similar products not mentioned.

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Spencer, G.F., Tjarks, L.W. Germination inhibition by 5,7-dihydroxychromone, a flavanoid decomposition product. J Plant Growth Regul 4, 177–180 (1985). https://doi.org/10.1007/BF02266955

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  • DOI: https://doi.org/10.1007/BF02266955

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