The infection by phytoviruses and the productivity formation in the new varieties of winter bread wheat in the different years with virus damage were investigated. There were identified the varieties being more tolerant to the observed diseases, among these - the samples with different constituents of tolerance, which could be used in the breeding programs.

The infection by phytoviruses and the productivity formation in the new varieties of winter bread wheat in the different years with virus damage were investigated. There were identified the varieties being more tolerant to the observed diseases, among these - the samples with different constituents of tolerance, which could be used in the breeding programs.

The fruit of apple scab immune hybrids, obtained from the targeted crossings for suitability for juice production, were estimated. The most perspective hybrids were selected. They are not inferior to the world juice cultivars in the basic technological characters (juice output), and even surpass them in a number of these characters (the content of SDS and P-active catechols in juice).

The fruit of apple scab immune hybrids, obtained from the targeted crossings for suitability for juice production, were estimated. The most perspective hybrids were selected. They are not inferior to the world juice cultivars in the basic technological characters (juice output), and even surpass them in a number of these characters (the content of SDS and P-active catechols in juice).

Influence of harvesting ways of spring brewer’s barley on grain crop capacity and quality has been examined. It has been established that in order to get good quality grain and timely harvesting all yield along with direct combine operator usage, application of separate way during grain humidity is acceptable.

It is common practice in scientific journals to print genus and species names in italics. This is not only historical as species names were traditionally derived from Greek or Latin. Importantly, it also facilitates the rapid recognition of genus and species names when skimming through manuscripts. However, names above the genus level are not always italicized, except in some journals which have adopted this practice for all scientific names. Since scientific names treated under the various Codes of nomenclature are without exception treated as Latin, there is no reason why names above genus level should be handled differently, particularly as higher taxon names are becoming increasingly relevant in systematic and evolutionary studies and their italicization would aid the unambiguous recognition of formal scientific names distinguishing them from colloquial names. Several leading mycological and botanical journals have already adopted italics for names of all taxa regardless of rank over recent decades, as is the practice in the International Code of Nomenclature for algae, fungi, and plants, and we hereby recommend that this practice be taken up broadly in scientific journals and textbooks.

Varietal supply with fodder crops of Ukraine’s market and DUS-test of new varieties of plants in 2006 on their suitability for dissemination were analyzed in the article.

Fungi are among the least known organisms on earth, with an estimated number of species between 1.5 and 10 million. This number is expected to be refined, especially with increasing knowledge about microfungi in undersampled habitats and increasing amounts of data derived from environmental DNA sequencing. A significant proportion of newly generated sequences fail to match with already named species, and thus represent what has been referred to as fungal “dark taxa”. Due to the challenges associated with observing, identifying, and preserving sporophores, many macro- and microfungal species are only known from a single collection, specimen, isolate, and/or sequence—a singleton. Mycologists are consequently used to working with “rare” sequences and specimens. However, rarity and singleton phenomena lack consideration and valorization in fungal studies. In particular, the practice of publishing new fungal species names based on a single specimen remains a cause of debate. Here, we provide some elements of reflection on this issue in the light of the specificities of the fungal kingdom and global change context. If multiple independent sources of data support the existence of a new taxon, we encourage mycologists to proceed with formal description, irrespective of the number of specimens at hand. Although the description of singleton-based species may not be considered best practice, it does represent responsible science in the light of closing the Linnean biodiversity shortfall.

Development of the Variety Research Network under the State System on Right Protection for Plant Varieties during centuries of XX- XXI, was described in the article. On the comprehensive level, main problems and the ways to their solving were determined, a role of the State Service on Right Protection for Plant Varieties in settling of the problem of State food security was demonstrated.

Development of the Variety Research Network under the State System on Right Protection for Plant Varieties during centuries of XX- XXI, was described in the article. On the comprehensive level, main problems and the ways to their solving were determined, a role of the State Service on Right Protection for Plant Varieties in settling of the problem of State food security was demonstrated.

Morphological and cultivation value characteristics description of new perspective ornamental peach varieties bred in Nikita Botanical Gardens has been given. The varieties were bred as a result of using genoplasm Persica vulgaris Mill, varieties with different type of flower, P. mira (Koehne) Koval, et Kostina and Amygdalus communis L. They differ in high ornamental idices in flowering period and in bioecilogical indexes.

Morphological and cultivation value characteristics description of new perspective ornamental peach varieties bred in Nikita Botanical Gardens has been given. The varieties were bred as a result of using genoplasm Persica vulgaris Mill, varieties with different type of flower, P. mira (Koehne) Koval, et Kostina and Amygdalus communis L. They differ in high ornamental idices in flowering period and in bioecilogical indexes.

The study of vernalization requierement of winter bread wheat 87 modem varieties from Ukraine and Russia showed significant domination - 81.6% - of varieties with short vernalization requierement (30-40 days). Vernalization requierement differences among varieties from different climatic zones were revealed.

The article highlights the results of studying hybrid combinations of common onion to the Botrytis allii Munn pathogen. It is found out that as for the combinations being studied the resistance to pathogen was inherited as dominant, intermediate or recessive trait. Better resistance to neck rot was inherent in the hybrid combinations which parents comprised resistant and immune varieties, insofar as the determination of inheritance coefficient has indicated F1 hybrids have this characteristic expression dependant by 50 to 78% on the parental plant (h2 =0,50–0,78). Studying the determination of the impact of both parental components on inheritance of the resistance to B. allii pathogen showed that the regression coefficient subject to hybrid combination fell within R = 0,12–0,39, while the resistance coefficient within 0,24–0,78, respectively. Efficiency of selection is proved by the trait of resistance to neck rot based on the populations of Grandina х Mavka, Olina х Grandina, Grandina х Skvyrska і Skvyrska х Grandina, as their respective inheritance coefficient reached the level of 0,42 to 0,78.

A technology of spring barley growing was described in the article, especially of its new varieties, provision of the brewing industry with high- quality malt through the diversification of planting areas and volumes of growing was explained, and establishment of the brewer’s barley market was described as well. Economical efficacy of the brewer’s and ordinary barley was calculated in order to provide a comparison.

A technology of spring barley growing was described in the article, especially of its new varieties, provision of the brewing industry with high- quality malt through the diversification of planting areas and volumes of growing was explained, and establishment of the brewer’s barley market was described as well. Economical efficacy of the brewer’s and ordinary barley was calculated in order to provide a comparison.