Comparison of two wheat powdery mildew differential sets in seedling tests

https://doi.org/10.17221/10510-PPSCitation:Vida G., Szunics L., Gál M., Veisz O., Bedő Z. (2002): Comparison of two wheat powdery mildew differential sets in seedling tests. Plant Protect. Sci., 38: 417-420.
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Two wheat powdery mildew differential sets were tested in the seedling stage in the 2001/2002 season using 192 monoisolates. The data of genotypes carrying the same Pm gene in different genetic backgrounds were compared. Both varieties with gene Pm8 (Salzmünde14/44 and Disponent) were infected by all the isolates. Less than 10% of the isolates gave different responses on varieties with genes Pm2 and Pm3c (6 and 16, respectively). It is doubtful whether the degree of infection of genotypes carrying genes Pm1, Pm4b, Pm5, Pm6 or Pm7 can be compared, while it is completely impossible to compare the data for varieties from the old and new sets carrying genes Pm3a, Pm3b and Pm4a.
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