Sources of Bacterial Spot Resistance in Plum Cultivars

Authors

  • O. M. Martins Author
  • M. C. B. Raseira Author

DOI:

https://doi.org/10.71318/apom.1996.50.3.156

Abstract

Bacterial spot ( Xanthomonas campestrispv. pruni) resistance in Japanese and European-type plum cultivars was evaluated under greenhouse conditions by means of a pressure infiltration inoculation procedure. Cultivars ‘Pluma 7’ (susceptible) and ‘The First’ (resistant) were used as standards for comparison to the genotypes inoculated with an inoculum concentration of 1 × 10 8cfu/ml. Resistance levels were rated using a scale based on percentage of affected leaf area. Cultivars ‘Harry Pickstone,’ ‘Carmesin,’ ‘Wickson,’ ‘frontier,’ ‘Rosa Mineira,’ ‘Reubennel,’ ‘Amarelinha’ and ‘Santa Rosa’ were highly susceptible while ‘Wade,’ ‘Ozark Premier’ and ‘Methley’ were moderately resistant. ‘Bruce,’ ‘Stanley,’ ‘Burbank,’ ‘D'Agen’ and ‘America’ were selected as major sources of resistance to the pathogen.

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Published

1996-07-01

Issue

Vol. 50 No. 3 (1996)

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How to Cite

Sources of Bacterial Spot Resistance in Plum Cultivars. (1996). Journal of the American Pomological Society, 50(3), 156-159. https://doi.org/10.71318/apom.1996.50.3.156