Study on virulence genes of population of Puccinia recondtia f．sp．tritici in different wheat ecological areas of Shanxi

The virulence gene frequencies of population of Puccinia recondita f．sp．tritici of wheat in Shanxi Province were analyzed．The results indicate that the appearances of virulence genes of V19，V24 and V38 are lower with the frequencies of 5.8％，11.3％ and 0.0％ respectively．Their corresponding resistant genes may be used as effective resistant genes．Among the 43 detected pathotypes ，the frequencies of THT，TRK，TRT，THK and PHT are 17.8％，14.4％，11.0％，8.2％，7.5％ respectively，and they are prevailing pathotypes of Puccinia recondita f. sp．tritici in Shanxi Province at present．