Resistance to biotic factors and yield capacity of spring barley varieties in the eastern forest-steppe of Ukraine

Abstract

The paper investigates resistance of varieties to biotic factors as well as their yield capacity.

The aim and tasks of the study. Selection of high-yielding starting material for breeding for genetic protection against major pathogens and pests.

Materials and methods. The investigations were carried out in 2013–2015 in the Laboratory of Resistance to Biotic Factors of the Plant Production Institute nd. a VYa Yuriev of NAAS on artificial infectious and provocative backgrounds. The study material was 29 spring barley varieties of domestic and foreign breeding. The yield capacity of the varieties was evaluated in a competitive variety trail.

Results and Discussion. The assessment highlighted varieties with individual, group and complex protection against pathogens and pests (Pan, Veles, Vzirets, Skarb, Dokaz, Komandor, Agrariy, Vsesvit, Kangoo, Ksanadu, Sofiara, Shakira, Arikada, Pasadena, Mauritia, Novosadsky 294). We distinguished varieties, the yield capacity of which significantly exceeded that of the national standard ‘Vzirets’, (Veles, Skarb, Pan, Alegro, Novosadskiy 294, Smaragd, Shakira, Mauritia) as well as varieties noticeable for individual, group or complex resistance to pathogens of certain diseases and intra-stem pests.

Conclusions. As a result, varieties - sources of individual, group and complex resistance as well as varieties combining high yield capacity and resistance to biotic factors in one genotype (Veles, Pan, Alegro, Novosadskiy 294, Smaragd, Shakira, Skarb, and Mauritia), which can be used in breeding as starting material, were identified.