The success of selection in creating the immune to scab and winter-hardy apple varieties

Abstract

In the world and domestic practice, the creation and use of resistant to the sum of adverse biotic and abiotic factors of varieties of fruit crops and Apple trees in particular is the most effective means of plant protection. Currently, many varieties are losing their resistance to diseases, and this in turn reduces the resistance to adverse conditions of the winter and vegetation periods. In this regard, the issue of the development of adaptive horticulture, in which the variety has a decisive role, is acute. One of the most harmful diseases of Apple trees in the middle zone of gardening is scab. The purpose of the research is to give a comparative estimate of sustainable (Vm) and immune (Vf) and scab of Apple cultivars for components of hardiness and identify the genotypes with hardy stew of buds and tissues on the rate of released winter-hardy varieties. Many years of research conducted on the basis of the Institute of selection of fruit crops by the method of artificial freezing in the freezer. The result revealed that the complex resistance to frost and kidney tissues for the four components of hardiness on the level vysokoskorostnogo varieties grushovka Moscow has a variety Kandil Orlovsky; at the level of varieties Antonovka ordinary varieties Orlovsky Pioner, Memory Isayev, Celandine, Bolotovskii, Imrus and Start.