The pathogenic microflora and entomofauna were studied on the Chaenomeles Lindl. cutivars (Maloideae, Rosaceae). In central Russia, the multi-year systematic monitoring of pathogens and phytophages was carried out on plants Ch. japonica, Ch. cathayensis, Ch.×superba. Among the identified pathogens, the micromycetes belonging to genera Botrytis, Cytospora, Diplocarpon, Entomosporium, Gloeosporium, Monilia, Neonectria, Penicillium, Pestalotia, Phomopsis, Phyllosticta, Septoria and Sphaeropsis were found to be injurious. With age, the accumulation of infectious background, including viral diseases and the damaging entomofauna was noted in the plantings of fruit crop Chaenomeles. The species composition of phytophages is mainly represented by autochthonous species (polyphages and oligophages), preferring the plants of Rosaceae family. Despite the abundance of species in the phytophage complex, it has a little effect on the decorativeness of Ch. japonica, Ch. cathayensis and Ch. × superba.

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Red currant (Ribes rubrum L.) is a berry crop promising for cultivation in Siberia. The purpose of the work was to study the elements of productivity and biochemical composition of fruits in 17 varieties of R. rubrum of various origins of the VNIISPK breeding. This article presents the results of the study of red currant varieties selected by VNIISPK in the Altai. Most varieties are highly resistant to gall aphids, with the exception of ‘Valentinovka’, ‘Orlovskaya Zvezda’ and ‘Orlovchanka’ - in some years, their damage was noted to a very weak degree. As sources of valuable biochemistry, the following varieties were identified: with a high content of soluble dry substances - Asya, Bayana, Vika, Dar Orla, Marmeladnitsa, Osipovskaya; sugar - Asya, Bayana, Roza; vitamin C - Asora, Asya, Protein, Vika, Marmeladnitsa, sugar-acid index - Asora, Orlovchanka, Roza. The varieties Asora, Asya, Bayana, Valentinovka, Vika, Dana, Dar Orla, Marmeladnitsa, Orlovskaya Zvezda, Orlovchanka, Osipovskaya, and Roza were identified according to the complex of economically useful traits (yield, large-fruited, biochemical composition, resistance to harmful organisms), which can be recommended for cultivation in the conditions of the Altai Ob region.

The purpose of the work was to select hybrids of Asian lilies promising for landscaping from the gene pool of the All-Russian Horticultural Institute for Breeding, Agrotechnology and Nursery, to characterize their advantages. Peculiarities of hybridization (the optional isolation of stigmas and castration) are refl ected, as well as grouping of lilies by fl owering time and height of fl ower-bearing shoots, valuable traits for breeding. The main features taken into account in the preparation of combinations of crosses and selecting seedlings in order to obtain hybrids that are diverse in appearance and stable in culture were: fl owering periods – from early to latest, infl orescence shape – from hemispherical to pyramidal, compact infl orescence, anthers sterility, originality forms and colours of fl owers, resistance to botrythiosis and alternariosis, ability to vegetative propagation by traditional methods, including the ability to form bulbills in the leaf axils. Ten promising Asian hybrids have been selected from the Institute’s hybrid lily fund, which are stable in open ground culture, varied in colour (one-colour and two-colour in various tones), fl ower shape (wide open, cup-shaped, chalmoid), fl ower-bearing shoot height (from short to tall), fl owering periods (from early to medium late). Among them ‘Alye Parusa’ and ‘Izyashchnaya’ are originally from Lilium davidii and are characterized by high drought tolerance, tall, elegant fl owers; ‘Ogonek’, 15.17 and 15.22 possess cytoplasmic male sterility; ‘Ogonek’, 15.17 and 15.21 possess early or medium early fl owering; ‘Meduza’, ‘Ogni Biryulevo’, ‘Tsaritsa’ possess an interesting coloring of fl owers; ‘Alye Parusa’, ‘Zagorye’, ‘Izyashchnaya’, 15.22 are tall, suitable for long cuts; in hybrids ‘Zagorye’ and 15.22 large leaf bulbills form in the axils of the leaves, which will contribute to the long-term cultivation of these lilies. All characterized hybrids are valuable material not only for fl ower decoration, but also as parent forms for breeding.

The aim in this work was to monitor heavy metals in plants of elderberry species. The objective of the research was to identify the actual concentrations of heavy metals in the fruits and leaves of the studied elderberry species. The need to determine deviations in the content of heavy metals in various parts of plants arose because the current ecological situation in Belgorod’s area requires special attention. The presence and concentration of heavy metals in different elderberry species and different parts of plants vary greatly and have the following features. Increased magnesium content was observed in almost all elderberry species, especially in red-fruited (Sambucus racemosa ‘Aurea’, S. sibirica Nakai, S. racemosa L., S. racemosa ‘Plumosa’, S. coreana Nakai), And its concentration much higher in fruits than in leaves. The highest deviation of the magnesium content from the norm was noted in the fruits and leaves of S. sibirica (2 and 1.5 times, respectively). Black elderberry species (S. nigra L., S. canadensis L., S. canadensis ‘Plumosa’) have a lower magnesium concentration in fruits and leaves. On the other hand, the concentration of copper in fruits and leaves in elderberry species is many times higher than the norm.