Based on study of 42 collection entries, results of creating winter wheat initial material of high grain quality value and its relationship with agronomic traits are presented.

Based on study of 42 collection entries, results of creating winter wheat initial material of high grain quality value and its relationship with agronomic traits are presented.

The article revealed the attempt to open the ways of State food security and the role of State support forming the national varieties resources.

The article revealed the attempt to open the ways of State food security and the role of State support forming the national varieties resources.

Some examples concerning the meaning of notion "variety" and its role in the increasing of wheat productivity are covered in this article, Some historical aspects of the origin of this term and its use in the select ional work are given. At the example of varieties

The analysis of the structure of State Register of Plant Varieties Suitable for Dissemination in Ukraine is presented. The descriptions of new lupine's varieties important for economic use are given. The state of new varieties introduction in production and ways of improving of the soil fertility with a low humus content and the overcoming of crisis in the forage sphere are shown.

The genealogy of the separate sorts of mild winter of International Breeding Research Laboratory V. N. Remeslo Mironovka Institute of Wheat were analyzed. And sources of forming the sings, providing their high adaptability, were also found . it is shown that the main role in sort productivity, their stabilityto sickness and to unfavourable factors of environment played a starting material of west-european ecotype.

The genealogy of the separate sorts of mild winter of International Breeding Research Laboratory V. N. Remeslo Mironovka Institute of Wheat were analyzed. And sources of forming the sings, providing their high adaptability, were also found . it is shown that the main role in sort productivity, their stabilityto sickness and to unfavourable factors of environment played a starting material of west-european ecotype.

The expediency of winter wheat varieties examination in the state variety examination is proved at two levels of agricultural backgrounds: at high level - in the presence of intensive agro technologies and at low level, which is typical for majority of producers. Conclusions have been made under the expediency of improvement and making changes to the Guidelines on evaluation of varieties resistance to diseases and crop tillage with a help of retardants.

Ophiocordyceps sinensis is a famous traditional Chinese medicine adapted to the alpine environment of the Qinghai-Tibet Plateau and adjacent regions. Clarification of the species diversity of Ophiocordyceps sinensis and its relatives could expand the traditional medicinal resources and provide insights into the speciation and adaptation. The study is prompted by the discovery of a new species, O. megala, described here from a biodiversity hotspot in the Hengduan Mountains, China. Combined morphological, ecological, and phylogenetic evidence supports its distinctiveness from O. sinensis, O. xuefengensis, and O. macroacicularis. Additionally, based on the phylogenetic construction of Ophiocordyceps, a special clade was focused phylogenetically on the more closely related O. sinensis complex, which was defined as the O. sinensis- species complex lineage. A total of 10 species were currently confirmed in this lineage. We made a comprehensive comparison of the sexual/asexual morphological structures among this species complex, distinguishing their common and distinctive features. Furthermore, using the method of species distribution modelling, we studied the species ocurrences in relation to climatic, edaphic, and altitudinal variables for the eight species in the O. sinensis-species complex, and determined that their potential distribution could extend from the southeastern Qinghai-Tibet Plateau to the Xuefeng Mountains without isolating barrier. Thus, the biodiversity corridor hypothesis was proposed around the O. sinensis-species complex. Our study highlights the phylogeny, species diversity, and suitable distribution of the O. sinensis-species complex lineage, which should have a positive implication for the resource discovery and adaptive evolution of this unique and valuable group.

Revealed main point of formation the matrix differences of lettuce seeds characteristics (Lactuca sativa L.), its correlation with other categories of heterogeneity. It’s been shown the ways of decreasing of the matrix differences of lettuce seeds characteristics with the aim to increase sowing quality of seeds.

Revealed main point of formation the matrix differences of lettuce seeds characteristics (Lactuca sativa L.), its correlation with other categories of heterogeneity. It’s been shown the ways of decreasing of the matrix differences of lettuce seeds characteristics with the aim to increase sowing quality of seeds.

Variations in bread volume output in accordance with external temperature factor which balancing increases obtained information reliability are considered.

Variations in bread volume output in accordance with external temperature factor which balancing increases obtained information reliability are considered.

Interrelation of plant height of winter wheat varieties with resistance to lodging and crops productivity has been investigated. It has been grounded expediency of corresponding agro-ecological conditions establishment, under which plant's height is formed within the limits of genetically caused optimum for each variety

Interrelation of plant height of winter wheat varieties with resistance to lodging and crops productivity has been investigated. It has been grounded expediency of corresponding agro-ecological conditions establishment, under which plant's height is formed within the limits of genetically caused optimum for each variety

The Article states forth the ways of post-war reproduction establishment and development, reorganization and activity of the Plant Variety Examination network almost during 80 years of its existence

The Article states forth the ways of post-war reproduction establishment and development, reorganization and activity of the Plant Variety Examination network almost during 80 years of its existence

Introduction. National varietal plant resources are of particular importance for the economic development of Ukraine, because they ensure the stability of the crop industry as a component of the country’s food security. The analysis of the historiography of the development of the state variety testing since 1923 showed the lack of a systematic study of the formation of the State Register of Plant Varieties suitable for distribution in Ukraine (hereinafter – the Register of Plant Varieties of Ukraine). Purpose. To reveal the historical stages of the formation of national plant varietal resources, and substantiate the concept of their development. Methods. A collection of commonly known plant varieties that are or were in commercial circulation. Research methods – general scientific: hypothesis, observation, analysis, synthesis method for drawing conclusions; source study database with elements of extrapolation, which is formed based on the results of field, laboratory and analytical research. Results. The study of the history of state variety testing regulation made it possible to find out that the variety testing netork in Ukraine was established in 1923. The refore, the formation of national varietal plant resources has its own almost a hundred-year history. At all historical stages of the formation of national varietal resources, a variety with a complex of its morphobiological and economically valuable characteristics remains the subject of the research. State registration of a variety or rights to it ensures the commercial circulation of the variety. Identification of plant varieties, as the basis for varietal certification, increases the turnover of varieties on the market, ensures the growth of production volumes and improves the quality of crop products. Plant varieties distributed on the territory of Ukraine correspond to the criteria of distinctness, uniformity and stability generally accepted in international practice; meet the needs of consumers in terms of economically valuable characteristics; do not threaten the environment and human health. The formation of national plant varietal resources takes place in stages with the tendency to increase the economically valuable criteria, which ensures the competitiveness of the modern market of varieties and seeds in accordance with international requirements. Conclusions. The formation of plant varietal resources to meet the needs of consumers and/or breeding practice in Ukraine took place due to rather long historical stages of development and introduction of plant diversity, forms, criteria and methodology of varietal testing in time and space. The substantiation of the historical aspects of the concept of the varietal resources formation will allow optimizing the structure of the variety testing network, organizational foundations of the state registration of varieties and the protection of breeder’s rights. | Вступ. Національні сортові рослинні ресурси мають особливе значення для економічного розвитку України, адже вони забезпечують стабільність галузі рослинниц­тва як складової продовольчої безпеки держави. Аналіз історіографії розвитку державного сортовипробування з 1923 року показав відсутність системного дослідження формуванняя Державного реєстру сортів рослин, придатних для поширення в Україні (далі – Реєстр сортів рослин України). Мета. Розкрити історичні етапи формування національних рослинних сортових ресурсів, та обгрунтувати концепцію їхнього розвитку. Методи. Колекція загальновідомих сортів рослин, які перебува­ють чи перебували в комерційному обігу. Методи досліджень – загальнонаукові: гіпотеза, спостереження, аналіз, метод синтезу для формування висновків; джерелознавча база даних з елементами екстрополяції, яка формується за результатами польового, лабораторного та аналітичного дослідження. Результати. Дослідження історії регулювання державного сортовипробування дало змогу з’ясувати, що сортовипробувальна мережа в Україні була створена в 1923 році. Тому формування національних рослинних сортових реурсів має свою майже стодлітню історію. На всіх історичних етапах формування національних рослинних сортових ресурсів предметом дослідження залишається сорт з комплексом своїх морфобіологічних та господарсько-цінних характеристик. Державна реєстрація сорту або прав на нього забезпечує комерційний обіг сорту. Ідентифікація сортів рослин як основа сортової сертифікації збільшує обіг сортів на ринку, забезпечує зростання обсягів виробництва та підвищення якості продукції рослинництва. Сорти рослин, поширені на території України, відповідають загальноприйнятим у міжнародній практиці критеріям відмінності, однорідності та стабільності; задовольняють потреби споживачів за господарсько-цінними характеристиками; не загрожують довкіллю і здоров’ю людини. Формування національних рослинних сортових ресурсів відбувається поетапно з тенденцією підвищення господарсько-цінних критеріїв, що забезпечує конкурентність сучасного ринку сортів і насіння відповідно до міжнародних вимог. Висновки. Формування рослинних сортових ресурсів для задоволення потреб споживачів та/або селекційної практики в Україні відбувалось завдяки доволі тривалим історичним етапам розвитку та інтродукції рослинного різноманіття, форм, критеріїв і методології сортовипробувальної справи в часі і просторі. Об´рунтування історичних аспектів концепції формування сортових ресурсів дозволить оптимізувати структуру сортовипробувальної мережі, організаційні основи державної реєстрації сортів та охорони прав селекціонера.