Susceptibility of G-genome tetraploid species of the genus Triticum L. to powdery mildew

According to the literature data, G-genome tetraploid species Triticum timopheevii and T. araraticum are highly resistant (immune) to powdery mildew. Unde-epephytoty of the disease, not a single pustule was found on the leaves of any T. timopheevii accessions or on most of the T. araraticum accessions. Infection of the spikes of accessions of the given species by this disease was found for the first time.