[en] The potential of induced mutations in wheat are studied relative to conventional breeding efforts. A total of 134 lines with improved resistance to diseases such as Erysiphe graminis, Puccinia striiformis, Puccinia graminis or Puccinia recondita were found in frequencies betweeen 0,000-0,061 per 100 M₂ plants during the last 15 years. The frequency of mutants that could be utilized in a breeding programme is lower than the total frequency of useful mutations. The majority of mutants has undergone additional undesirable changes. Some of these mutants segregate permanently. However, some mutants were also obtained which differ from a parent line in an almost entirely positive way. Examples of such mutants are given and indicate that the induced mutation method can be an efficient tool in breeding for disease resistance