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Resistance of Hop Stems to Invasion by Verticillium albo-atrum

Abstract

MOST fungi causing vascular wilts of plants enter through the roots and then invade systemically the xylem tissue of the root and stem. Their effects are usually judged by the severity of leaf symptoms, and on this criterion is based an assessment both of host resistance and of fungal pathogenicity. The extent and intensity of fungal growth in the xylem (particularly of the stem) parallels the severity of leaf symptoms, and is also used as an indication of host resistance and fungal pathogenicity1–4.

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References

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KEYWORTH, W. Resistance of Hop Stems to Invasion by Verticillium albo-atrum. Nature 171, 656–657 (1953). https://doi.org/10.1038/171656c0

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