Immunological reactions of winter soft wheat collection samples for resistance to brown rust
DOI:
https://doi.org/10.30835/2413-7510.2015.57340Keywords:
winter wheat, samples, resistance, brown rustAbstract
Introduction. One of the central issues in the selection this creating varieties that combine high productivity potential, grain quality with its genetic protection against diseases.
The factors that reduce yields and gross harvests of staple food crops of winter wheat, should include numerous diseases, among which a special place is occupied by different types of rust. One of the most economically important and dangerous leaf diseases of winter wheat is brown leaf rust.
The aim and tasks of the study. The aim of our research was to determine the resistance to leaf rust collection samples of soft winter wheat on artificial infectious background. The objectives study was to assess the collection and selection of samples of material with a high resistance for use in breeding.
Materials and methods. Evaluation of 78 collection samples of winter wheat for resistance to leaf rust was conducted on an artificial infectious background in the field during 2013 - 2014.
Results and discussion. Meteorological conditions during years of the study were characterized by fever and unstable air moisture. So, in 2013 during the growing season HTC was 1.3, and in 2014 was 1.6. From the collection of winter wheat, which we studied in 2013-2014 years, 60 samples (76.9%) were high resistant. 12 samples were immune (15.4%), they were originating mainly from the United States and Hungary.
Conclusions. Within two years of research to determine the stability of the collection material of winter wheat against leaf rust in the conditions of artificial infection background. Among the 78 samples there were 12 immune, 48 highly resistant, 11 resistant, 5 moderately susceptible, 2 susceptible. Emphasis immune samples Beres, Lurda 81, Lindon, Co 7250-49, Co 7250-50, HBE 384, Mc Nair 2203, Century, TAM-200, Arthur 71, Rochy and Polovchanka, You need to attract crossover and used in breeding work towards the creation of varieties with increased resistance to leaf rust.
