Summary
Evidence that a one-locus sporophytic incompatibility system operates in pyrethrum is presented after analysing the F1 of a clonal cross. Secondary factors, as the site of inhibition of the pollen tube on the stigma and three-nucleate pollen further support this evidence.
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Brewer, J.G. Incompatibility relationship in pyrethrum (Chrysanthemum cinerariaefolium vis.). Euphytica 23, 45–47 (1974). https://doi.org/10.1007/BF00032739
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DOI: https://doi.org/10.1007/BF00032739