Inhibition of Black Spruce Primary Roots by a Water-Soluble Substance In Kalmia angustifolia
Bio-assays indicated that dry leaves of Kalmia angustifolia L.¹ contain a substance that hinders primary root development of black spruce by destruction of epidermal and cortical cells. Final germination percentage of black spruce appeared to be unaffected by Kalmia-leaf extracts. Results with crude and chromatographically partitioned extracts showed that the inhibitory substance is soluble in either ethanol or water. Although the substance is stable in dry leaves, its water solubility suggests that the direct inhibition described here may also occur wherever Kalmia predominates.
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Document Type: Journal Article
Affiliations: Assistant Professor, Divison of Natural Sciences, Univ. Saskatchewan, Regina
Publication date: 1965-12-01
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