Рurpose. To investigate inheritance of “plant height” trait in populations of the first (F1) and second (F2) generations of the soybean (Glucine max (L.) Merrill) and evaluate hybrid combinations in order to identify phenotypes with the highest level of heterosis for plant height. Methods. Laboratory test, mathematical and statistical analysis. Results. The inheritance of plant height in soybean was investigated. Hybrid combinations were assessed for the ability to select phenotypes with an optimal height. Different types of inheritance of this trait were found in populations of the second generation. The highest degree of heterosis for plant height was expressed by such soybean hybrids of the second generation as ‘АЕЕМ ’/‘Cherniatka’ (102.6%), next were ‘№ 427/‘Коrado’ (36,1%) and ‘Yelena’/‘Vizhion’ (32,0%). For the above trait, the ‘Legend’ variety in combinations with such varieties as ‘Staroukrainka’, ‘Korado’ and ‘Medeia’ expressed a heterosis amounting to 28.1%, 8.3%, 6.1% accordingly. Plant height was inherited mainly in terms of negative overdominance (34.2% combinations). There were 21.1% of combinations that had a negative semidominance. Conclusions. Among large majority of crossing combinations, forms were revealed that differed greatly for the plant height. The highest variability was observed in combinations such as ‘Legenda’/‘Korado’, ‘Ustia’/‘Vizjion’, ‘№894’/‘Vizjion’, ‘Ug-30’/‘Vizjion’, ‘Legenda’/‘Annushka’, ‘№441’/‘Gentleman’, ‘№441’/‘Vizjion’, ‘Yug-30’/‘Gentleman’, ‘Angelica’/‘Annushka’ and ‘Angelica’/‘Gentleman.

Purpose. Selecting spring wheat lines with increased adaptive capacity. Methods. Field experiments, statistical evaluation. Results. Lines of spring soft wheat with better adaptive capacity were identified (‘Erythrospermum 13-39’, ‘Lutescens 11-16’, ‘Lutescens 05-24’, ‘Lutescens 10-36’) and spring durum wheat (‘Melanopus 10-02’ (biotype II), ‘Melanopus 10-02’, ‘Melanopus 10-03’, ‘Hordeiforme 12-12’). Spring soft wheat varieties ‘Zlata’, ‘Dubravka’, ‘Oksamyt Myronivskyi’, ‘Bozhena’ and spring durum wheat varieties ‘MIP Raiduzhna’, ‘Magdalena’ with increased adaptive capacity were passed for State variety testing. Conclusions. With regard to the analysis of parameters of yield capacity and its variability under the influence of changing environmental factors, soft and durum spring wheat lines with increased adaptive capacity were identified. The best spring wheat lines for general adaptive capacity were passed for State variety testing. Soft spring wheat variety ‘Zlata’ and durum spring wheat variety ‘MIP Raiduzhna’, in 2014, and such soft spring wheat varieties as ‘Dubravka’, ‘Oksamyt Myronivskyi’, ‘Bozhena’ and spring durum wheat variety ‘Magdalena’, in 2015, were passed for State variety testing.

Purpose. To analyze the Ukrainian names of the fruit crops which varieties are undergoing scientific and technical examination. Results. Names of fruit crops form a separate terminological system based on one-word fruit plant names. Names of new introduced fruit crops usually are borrowed from the language of that country where the crop has extended and whence it has spread, or on the basis of a Latin generic name. Conclusions. The registered varieties of fruit plants in Ukraine belong to 48 crops. Formation of names of fruit crops has begun in ancient times and is continuing until now. Crop names, as a rule, consist of one word; two-word names occur as an exception, if so, an adjective should be places ahead of a noun. Names of fruit crops and the name of botanic taxa are specific, belong to different terminological systems and perform different functions.

Purpose. To analyze the Ukrainian names of the fruit crops which varieties are undergoing scientific and technical examination. Results. Names of fruit crops form a separate terminological system based on one-word fruit plant names. Names of new introduced fruit crops usually are borrowed from the language of that country where the crop has extended and whence it has spread, or on the basis of a Latin generic name. Conclusions. The registered varieties of fruit plants in Ukraine belong to 48 crops. Formation of names of fruit crops has begun in ancient times and is continuing until now. Crop names, as a rule, consist of one word; two-word names occur as an exception, if so, an adjective should be places ahead of a noun. Names of fruit crops and the name of botanic taxa are specific, belong to different terminological systems and perform different functions.

Purpose. To analyse the qualitative and quantitative composition of volatile organic substances (VOS) in the petals of six species of dog-rose in the collection of M. M. Gryshko National Botanic Garden of the NAS of Ukraine for further bree­ding. Methods. Volatile organic substances were obtained by steam distillation. VOS was determined using gas chromato­graphy (Chromatograph Agilent Technologies 6890). Results. The qualitative and quantitative composition of volatile organic substances in the petals in such species as Rosa L. (R. roullettii HCh (Correvon), R. multiflora Thunb., R. pimpinellifolia L., R. canina L., R. centifolia L., R. rugosa Thunb.) was investigated. According to the results of the research, 105 VOS were discovered in the dog-rose petals, among which 11 were not identified. The dog-rose petals of identified VOC contained 16 components which share exceeds 5%, 31 – was ranging from 1% to 5%, 47 – was less than 1%. They belonged to different groups including monoterpenoids, sesquiterpenoids, sesquiterpene alcohols, saturated unbranched hydrocarbons etc. The largest number of components were identified in the petals of R. roulettii (49) and R. centifolia (45), while the number of identified components in species R. multiflora (33), R. rugosa (31) and R. canina (30) was relatively smaller. All studied dog-rose species were characterized by the presence of such saturated unbranched hydrocarbons as decan, tetradecane, pentadecane, hexadecane, heptadecane, octadecane, nanodecane, heneicosane, tricosane, tetracosane, pentacosane, heptocosane, hentriacontane. Triterpene hydrocarbon squalene is the important component of the VOS complex in dog-rose pen tals. b-phenylethyl alcohol to be one of the main components of the rose essential oils was found during investigation in the following four dog-rose species as R. centifolia (0.61%), R. pimpinellifolia (3.56%), R. rugosa (4.24%), and R. multiflora (5.43%). Significant content of dihydro-b-ionol (18.46%), dihydro-b-ionone (0.69%), thias­piran A (1.35%), and thiaspiran B (2.17%) were revealed in the petals of R. roulettii, which also have an influence on the aromatic bouquet of the rose oil. Conclusions. For the first time, 105 volatile organic substances were found in the petals of six species of dog-rose, 11 of which were not identified. It was found out that the largest number of components were identified in the petals of R. roulettii (49) and R. centifolia (45). The number of VOS identified in species R. multiflora (33), R. rugosa (31), and R. canina (30) was relatively smaller. Component composition of VOS in the petals of studied dog-rose species is an important constituent in breeding investigations of prospective producers for the various purposes of use.

Purpose. To analyse the qualitative and quantitative composition of volatile organic substances (VOS) in the petals of six species of dog-rose in the collection of M. M. Gryshko National Botanic Garden of the NAS of Ukraine for further bree­ding. Methods. Volatile organic substances were obtained by steam distillation. VOS was determined using gas chromato­graphy (Chromatograph Agilent Technologies 6890). Results. The qualitative and quantitative composition of volatile organic substances in the petals in such species as Rosa L. (R. roullettii HCh (Correvon), R. multiflora Thunb., R. pimpinellifolia L., R. canina L., R. centifolia L., R. rugosa Thunb.) was investigated. According to the results of the research, 105 VOS were discovered in the dog-rose petals, among which 11 were not identified. The dog-rose petals of identified VOC contained 16 components which share exceeds 5%, 31 – was ranging from 1% to 5%, 47 – was less than 1%. They belonged to different groups including monoterpenoids, sesquiterpenoids, sesquiterpene alcohols, saturated unbranched hydrocarbons etc. The largest number of components were identified in the petals of R. roulettii (49) and R. centifolia (45), while the number of identified components in species R. multiflora (33), R. rugosa (31) and R. canina (30) was relatively smaller. All studied dog-rose species were characterized by the presence of such saturated unbranched hydrocarbons as decan, tetradecane, pentadecane, hexadecane, heptadecane, octadecane, nanodecane, heneicosane, tricosane, tetracosane, pentacosane, heptocosane, hentriacontane. Triterpene hydrocarbon squalene is the important component of the VOS complex in dog-rose pen tals. b-phenylethyl alcohol to be one of the main components of the rose essential oils was found during investigation in the following four dog-rose species as R. centifolia (0.61%), R. pimpinellifolia (3.56%), R. rugosa (4.24%), and R. multiflora (5.43%). Significant content of dihydro-b-ionol (18.46%), dihydro-b-ionone (0.69%), thias­piran A (1.35%), and thiaspiran B (2.17%) were revealed in the petals of R. roulettii, which also have an influence on the aromatic bouquet of the rose oil. Conclusions. For the first time, 105 volatile organic substances were found in the petals of six species of dog-rose, 11 of which were not identified. It was found out that the largest number of components were identified in the petals of R. roulettii (49) and R. centifolia (45). The number of VOS identified in species R. multiflora (33), R. rugosa (31), and R. canina (30) was relatively smaller. Component composition of VOS in the petals of studied dog-rose species is an important constituent in breeding investigations of prospective producers for the various purposes of use.

Purpose. To evaluate the stability and plasticity of new varieties of grain sorghum in ecological conditions of the Fores-Steppe and Steppe zone of Ukraine. Methods. Field study, statistical evaluation. Results. It was found that in Ukraine the average yield of grain sorghum in 2015 was 3.72 t/ha and in 2016 – 3.36 t/ha. In field experiments during 2009–2016, ‘Praim’ and ‘Sprynt 2’ hybrids appeared to be significantly better as compared to averaged yields of 3.9 t/ha. Evaluation of yield plasticity in environmental conditions of the Forest-Steppe and Steppe zones showed that the hybrid ‘Praim’ did not differ from the group standard and its index is no more than one. At the same time, the ‘Sprynt 2’ is highly-plastic hybrid and ‘Dniprovskyi 39’ belongs to relatively low-plastic varieties. Conclusions. It was established that, as an average of an experiment, hyb­rids of grain sorghum ‘Praim’ and ‘Sprynt 2’ had a yield of 4,2–4,3 t/ha. According to the analysis of ecological plasticity, ‘Sprynt 2’ can be included with the intensive type and ‘Dniprovskyi 39’ – with relatively low-plastic varieties. It was found that proper selection of varieties and far­ming practices of cultivation is one of the main factors that favors high yields and respectively determine 37% and 34% of the level of grain sorghum productivity.

Purpose. To evaluate the stability and plasticity of new varieties of grain sorghum in ecological conditions of the Fores-Steppe and Steppe zone of Ukraine. Methods. Field study, statistical evaluation. Results. It was found that in Ukraine the average yield of grain sorghum in 2015 was 3.72 t/ha and in 2016 – 3.36 t/ha. In field experiments during 2009–2016, ‘Praim’ and ‘Sprynt 2’ hybrids appeared to be significantly better as compared to averaged yields of 3.9 t/ha. Evaluation of yield plasticity in environmental conditions of the Forest-Steppe and Steppe zones showed that the hybrid ‘Praim’ did not differ from the group standard and its index is no more than one. At the same time, the ‘Sprynt 2’ is highly-plastic hybrid and ‘Dniprovskyi 39’ belongs to relatively low-plastic varieties. Conclusions. It was established that, as an average of an experiment, hyb­rids of grain sorghum ‘Praim’ and ‘Sprynt 2’ had a yield of 4,2–4,3 t/ha. According to the analysis of ecological plasticity, ‘Sprynt 2’ can be included with the intensive type and ‘Dniprovskyi 39’ – with relatively low-plastic varieties. It was found that proper selection of varieties and far­ming practices of cultivation is one of the main factors that favors high yields and respectively determine 37% and 34% of the level of grain sorghum productivity.

Purpose. To determine the effect of the basic organo-mineral fertilizer on the formation and stability of grain quality of winter wheat varieties in multiple crop rotation after black fallow as a predecessor. Methods. Field experiments were based on a multifactorial scheme using split-plot method with due regard to all requirements of the field experiment procedure, analysis of variance was used for statistical processing of the obtained results. Results. Investigation data was given concerning determination of grain quality indices in winter wheat varieties of diffe­rent ecotypes after black fallow as a predecessor depending on organo-mineral fertilizer application in the Left-Bank Forest-Steppe zone of Ukraine. In average for the period of investigation (2011–2015), the highest protein content in winter wheat grains was formed in no treatment variant [in such varieties as ‘Doridna’ (14.1%), ‘Dykanka’ (14.3%) and ‘Levada’ (14.2%)] and in case of organo-mineral fertilizer application [in the varieties ‘Hordovyta’ (14.0%), ‘Kalyta’ (14.0%), ‘Dykanka’ (14.7%) and ‘Levada’ (14.6%)]. The highest content of crude gluten in grains, without regard for the variant of the experiment, was found in the following varieties as ‘Dykanka’ (24.9–25.1%) and ‘Levada’ (23.7–25.4%). Conclusions. It was established that the content of protein and crude gluten in grains as well as the falling number of winter wheat was highly dependent on such factors as the variety and the year of cultivation as compared to the fertilizer background. The following varieties as ‘Hordovyta’, ‘Mulan’, Dykanka’ and ‘Levada’ were very sensitive to the application of organo-mineral fertilizer for the protein content, while ‘Hordovyta’ (2.4%), ‘Levada’ (1.7%), ‘Borvii’ (1.2%) and ‘Mulan’ (1.1%) – for the crude gluten content.

Purpose. To determine the effect of the basic organo-mineral fertilizer on the formation and stability of grain quality of winter wheat varieties in multiple crop rotation after black fallow as a predecessor. Methods. Field experiments were based on a multifactorial scheme using split-plot method with due regard to all requirements of the field experiment procedure, analysis of variance was used for statistical processing of the obtained results. Results. Investigation data was given concerning determination of grain quality indices in winter wheat varieties of diffe­rent ecotypes after black fallow as a predecessor depending on organo-mineral fertilizer application in the Left-Bank Forest-Steppe zone of Ukraine. In average for the period of investigation (2011–2015), the highest protein content in winter wheat grains was formed in no treatment variant [in such varieties as ‘Doridna’ (14.1%), ‘Dykanka’ (14.3%) and ‘Levada’ (14.2%)] and in case of organo-mineral fertilizer application [in the varieties ‘Hordovyta’ (14.0%), ‘Kalyta’ (14.0%), ‘Dykanka’ (14.7%) and ‘Levada’ (14.6%)]. The highest content of crude gluten in grains, without regard for the variant of the experiment, was found in the following varieties as ‘Dykanka’ (24.9–25.1%) and ‘Levada’ (23.7–25.4%). Conclusions. It was established that the content of protein and crude gluten in grains as well as the falling number of winter wheat was highly dependent on such factors as the variety and the year of cultivation as compared to the fertilizer background. The following varieties as ‘Hordovyta’, ‘Mulan’, Dykanka’ and ‘Levada’ were very sensitive to the application of organo-mineral fertilizer for the protein content, while ‘Hordovyta’ (2.4%), ‘Levada’ (1.7%), ‘Borvii’ (1.2%) and ‘Mulan’ (1.1%) – for the crude gluten content.

Purpose. To define statistical methods and tools (application packages) for creating the decision support system (DSS) for qualifying examination of plant varieties suitable for dissemination (VSD) in the context of data processing tasks. To substantiate the selection of software for proces­sing statistical data relative to field and laboratory investigations that are included into the qualifying examination for VSD. Methods. Analytical one based on the comparison of methods of descriptive and multivariate statistics and tools of intellectual analysis of data obtained during qualifying examination for VSD. Comparative analysis of software tools for processing statistical data in order to prepare proposals for the final decision on plant variety application. Decomposition of tasks was carried out which were included into the decision support system for qualifying examination of varieties-candidates for VSD. Results. Statistical package SPSS, analysis package included in MS Excel and programe language R was compared for the following criteria: interface usability, functionality, quality of calculation result presentation, visibility of graphical information, software cost. The both packages were widely used in the world for statistical data processing, they have similar functions for statistics calculation. Conclusion. Tasks of VSD were separated and recommended to tackle using investigated tools. Programe language R was a product recommended to use as a tool. The main advantage of R as compared to the package IBM SPSS Statistics is the fact that R is an open source software.

Мета.Визначити статистичні методи та інструментальні засоби (пакети прикладних програм) для створення сис­теми підтримки прийняття рішення (СППР) кваліфікаційної експертизи сортів рослин на придатність до поширення (ПСП) у розрізі завдань оброблення даних. Обґрунтувати вибір програмних засобів оброблення статистичних даних польових та лабораторних досліджень, що входять до складу кваліфікаційної експертизи на ПСП. Методи. Аналітичний, який ґрунтується на порівнянні методів описової та багатовимірної статистики й засобів інтелектуального аналізу даних, отриманих під час кваліфікаційної експертизи на ПСП. Порівняльний аналіз програмних засобів оброблення статистичних даних для підготовки пропозицій щодо кінцевого рішення за заявкою на сорт рослин.Результати. Проведено декомпозицію завдань, що входять до складу системи підтримки прийняття рішень з кваліфікаційної екс­пертизи сортів-кандидатів на ПСП. Проведено порівняння статистичного пакета SPSS, пакета аналізу, що входить до складу MS Excel, та мови програмування R за критеріями: зручність інтерфейсу, функціональність, якість представлення результатів обчислення, наочність графічної інформації, вартість програмного засобу. Обидва пакети широко застосовують у світі для статистичного оброблення даних, вони мають аналогічний склад функцій для обчислення статистик. Висновки. Виокремлено завдання ПСП, що рекомендовано вирішувати із застосуванням досліджуваних засобів. Як інструментальний засіб рекомендовано використовувати мову програмування R. Основною перевагою R порівняно з пакетом IBM SPSS Statistics є те, що R є програмним продуктом з відкритим кодом, який вільно поширюється. | Цель. Определить статистические методы и инструментальные средства (пакеты прикладных программ) для создания системы поддержки принятия решения (СППР) квалификационной экспертизы сортов на пригодность их к распространению (ПСР) в разрезе задач обработки данных. Обосновать выбор программных средств обработки статистических данных полевых и лабораторных исследований, которые входят в состав квалификационной экспертизы на ПСР. Методы. Аналитический, основанный на сравнении методов описательной и многомерной статистики и средств интеллектуального анализа данных, полученных при проведении квалификационной экспертизы на ПСР. Сравнительный анализ программных средств обработки статистических данных для подготовки предложений по окончательному решению по заявке на сорт растений.Результаты. Проведена декомпозиция задач, которые входят в состав системы поддержки принятия решений по квалификационной экспертизе сортов-кандидатов на ПСП. Проведено сравнение статистического пакета SPSS, пакета анализа, который входит в состав MS Excel и языка программирования R по критериям: удобство интерфейса, функциональность, качество представления результатов расчетов, наглядность графической информации, стоимость программного средства. Оба пакета широко применяются в мире для статистической обработки данных, имеют аналогичный состав функций для расчета статистик. Выводы. Выделены задачи ПСР, которые рекомендуется решать с применением исследуемых средств. В качестве инструментального средства целесообратно использовать язык программирования R. Основным преимуществом R по сравнению с пакетом IBM SPSS Statistics является то, что R – программный продукт с открытым кодом, который свободно распространяется. | Purpose. To define statistical methods and tools (application packages) for creating the decision support system (DSS) for qualifying examination of plant varieties suitable for dissemination (VSD) in the context of data processing tasks. To substantiate the selection of software for proces­sing statistical data relative to field and laboratory investigations that are included into the qualifying examination for VSD.Methods. Analytical one based on the comparison of methods of descriptive and multivariate statistics and tools of intellectual analysis of data obtained during qualifying examination for VSD. Comparative analysis of software tools for processing statistical data in order to prepare proposals for the final decision on plant variety application. Decomposition of tasks was carried out which were included into the decision support system for qualifying examination of varieties-candidates for VSD. Results. Statistical package SPSS, analysis package included in MS Excel and programe language R was compared for the following criteria: interface usability, functionality, quality of calculation result presentation, visibility of graphical information, software cost. The both packages were widely used in the world for statistical data processing, they have similar functions for statistics calculation. Conclusion. Tasks of VSD were separated and recommended to tackle using investigated tools. Programe language R was a product recommended to use as a tool. The main advantage of R as compared to the package IBM SPSS Statistics is the fact that R is an open source software.

Purpose. To define statistical methods and tools (application packages) for creating the decision support system (DSS) for qualifying examination of plant varieties suitable for dissemination (VSD) in the context of data processing tasks. To substantiate the selection of software for proces­sing statistical data relative to field and laboratory investigations that are included into the qualifying examination for VSD. Methods. Analytical one based on the comparison of methods of descriptive and multivariate statistics and tools of intellectual analysis of data obtained during qualifying examination for VSD. Comparative analysis of software tools for processing statistical data in order to prepare proposals for the final decision on plant variety application. Decomposition of tasks was carried out which were included into the decision support system for qualifying examination of varieties-candidates for VSD. Results. Statistical package SPSS, analysis package included in MS Excel and programe language R was compared for the following criteria: interface usability, functionality, quality of calculation result presentation, visibility of graphical information, software cost. The both packages were widely used in the world for statistical data processing, they have similar functions for statistics calculation. Conclusion. Tasks of VSD were separated and recommended to tackle using investigated tools. Programe language R was a product recommended to use as a tool. The main advantage of R as compared to the package IBM SPSS Statistics is the fact that R is an open source software.

Purpose. To study morphoagrobiological and adaptive properties, level of yielding capacity of recently registered soft winter wheat varieties of various ecological groups under agroecological conditions of Kirovohrad variety testing station. Methods. Field study, laboratory test, analytical procedure and statistical evaluation. Results. It was established that the yield level of is a key composite indicator of genotype adaptation to agroecological growing conditions. Experimental data indicate significant deviations of yield depending on the genotype and the year of study. During three years of experiments, yield depending of the variety ranged from 4.26 to 9.71 t/ha, such varieties as ‘CN Kombin’, ‘Estivus’, ‘Tradytsiia odeska’, ‘Mudrist odeska’, ‘Lil’ and ‘Fabius’ had higher yields. In case of dry weather conditions and unfavorable agro-ecological factors, the following varieties as ‘Mudrist odeska’, ‘Veteran’, ‘Lil’, ‘Tsentylivka’, ‘Fabius’, ‘Patras’, ‘Montrei’ have demonstrated good adaptive properties. Their yield has decreased by 9,2–19,0%, while in the varieties ‘Mahistral’, ‘Poltavka’, ‘Harantiia odeska’ and ‘Pokrova’ – by 34.4, 42.4, 45.2 and 50.6% accordingly. Conclusions. Investigated soft winter wheat varieties differ in morphoagrobiological characteristics, productivity, height, maturation period, adaptability as well as economic and agronomic value. According to the complex of such indices as productivity, agronomic characters and properties as well as adaptability, in the microzone of Kirovohrad variety testing station it is advisable to grow varie­ties ‘CN Kombi’, ‘Pokrova’, ‘Mudrist odeska’, ‘Veteran’ and ‘Lil’.

Purpose. To study morphoagrobiological and adaptive properties, level of yielding capacity of recently registered soft winter wheat varieties of various ecological groups under agroecological conditions of Kirovohrad variety testing station. Methods. Field study, laboratory test, analytical procedure and statistical evaluation. Results. It was established that the yield level of is a key composite indicator of genotype adaptation to agroecological growing conditions. Experimental data indicate significant deviations of yield depending on the genotype and the year of study. During three years of experiments, yield depending of the variety ranged from 4.26 to 9.71 t/ha, such varieties as ‘CN Kombin’, ‘Estivus’, ‘Tradytsiia odeska’, ‘Mudrist odeska’, ‘Lil’ and ‘Fabius’ had higher yields. In case of dry weather conditions and unfavorable agro-ecological factors, the following varieties as ‘Mudrist odeska’, ‘Veteran’, ‘Lil’, ‘Tsentylivka’, ‘Fabius’, ‘Patras’, ‘Montrei’ have demonstrated good adaptive properties. Their yield has decreased by 9,2–19,0%, while in the varieties ‘Mahistral’, ‘Poltavka’, ‘Harantiia odeska’ and ‘Pokrova’ – by 34.4, 42.4, 45.2 and 50.6% accordingly. Conclusions. Investigated soft winter wheat varieties differ in morphoagrobiological characteristics, productivity, height, maturation period, adaptability as well as economic and agronomic value. According to the complex of such indices as productivity, agronomic characters and properties as well as adaptability, in the microzone of Kirovohrad variety testing station it is advisable to grow varie­ties ‘CN Kombi’, ‘Pokrova’, ‘Mudrist odeska’, ‘Veteran’ and ‘Lil’.

Purpose. To evaluate hazelnut cultivars, species and hybrids from the genetic collection of Corylus spp. in the National Dendrological Park “Sofiyivka” of the NAS of Ukraine for the complex of economic characters. An attempt has been made to analyze the information on Corylus spp. identity, taxonomy and description, dissemination and ecological requirements of the species, possibilities to use the genetic potential for developing new cultivars. Methods. The value of the Corylus spp. collection representatives was investigated using conventional testing procedures. For summarizing information concerning phylogenetic reconstruction of the Corylus L. genus and hazelnut, a number of scientific publications to be proposed for discussion was analyzed. The oil content in hazelnut kernels and the fatty acid composition was determined using official methods. Results. The best samples of hazelnut genetic collection were included into the broad hybridization programme, and C. chinensis Franch. representatives as well. A number of hybrid seedlings was obtained including new hazelnut cultivars ‘Sofiyivsky 1’, ‘Sofiyivsky 2’ and ‘Sofiyivsky 15’ which were characterized by spherical or almost spherical fruits, high winter hardiness and drought resistance, as well as the absence of rhythmicity in fruiting. Conclusions. The collection of varieties, forms, cultivars and species of the Corylus L. genus created during the last years can be the base for hazelnut breeding in Ukraine.

Мета. Серед описаних у фаховій літературі ідентифікованих генів стійкості проти збудника бурої іржі виділити чужо­рідні, інтрогресовані у вид Triticum aestivum L. джерела, встановити їх походження та перспективи використання в селекційній практиці. Результати. Пшениця озима м’яка як основна зернова культура належить до групи рослин, яких найдавніше вирощують у контрольованих умовах. Протягом періоду вегетації вона зазнає згубного впливу збудників хвороб, тому пошук джерел стійкості проти них є першочерговим завданням селекції. Бура іржа – одна з найпоширеніших і шкодочинних хвороб пшениці. Вона призводить до значних втрат урожаю та погіршення якості зерна. Популяція збудника Puccinia reconditа вирізняється неабиякою адаптивною здатністю. Висока варіабельність вірулентності гриба призводить до накопичення патотипів, здатних долати гени стійкості пшениці. Найбільш екологічно безпечним методом контролювання захворювання є створення стійких сортів. Ефективність селекції на стійкість проти бурої іржі можна покращити, використовуючи різні Lr-гени стійкості. На цей час у геному пшениці та її родичів ідентифіковано й охарактеризовано за хромосомною локалізацією та ефективністю понад 90 (Lr) генів стійкості проти цього збудника. Виявлено, що майже всі ефективні на території України гени стійкості проти збудника бурої іржі, окрім Lr10 та Lr23, є чужорідними, перенесеними в Triticum aestivum від інших видів: Aegilops speltoides – гени Lr28, Lr35, Lr36, Lr47, Lr51, Lr66; Aegilops tauschii – Lr1, Lr21, Lr22а, Lr32, Lr39, Lr42; Triticum timopheevii – Lr18 та Lr50; Thinopyrum elongatum – Lr19, Lr29, Lr24; Secale cereale – Lr25, Lr26 та Lr45; Aegilops umbellulata – Lr9, Lr76; Triticum speltа – Lr44, Lr65, Lr71; Triticum dicoccoides – Lr53, Lr64; Aegilops triuncialis – Lr58, LrTr; Tr. timopheevii spp. viticulosum – LrTt1; Aegilops ventricosa – Lr37; Aegilops kotschyi – Lr54; Elymus trachycaulis – Lr55; Aegilops sharonensis – Lr56; Aegilops geniculate – Lr57; Aegilops peregrine – Lr59; Triticum turgidum – Lr61; Aegilops neglecta – Lr62; Triticum monococcum – Lr63. Висновки. Залучення до схрещувань культурних та диких видів родичів пшениці дасть змогу отримати неоднорідний за стійкістю проти збудника бурої іржі селекційний матеріал.

Purpose. To establish the reasons of submitting not highly decorative lilac hybrids to state variety testing so that unpromising varieties and look-alikes can be sometimes included in the world collection, and focus on solving this situation. Methods. Analytical approach. Results. It was established why and how unoriginal hybrids were submitted to state variety testing that for several reasons can allow them to obtain the status of variety. Conclusions. In order to prevent obtaining the status of variety by some low decorative lilac hybrids, it is necessary that both a breeder and testing stations employer should use known presentable collections of identified varieties for evaluation of real value of a new hybrid. In Ukraine, there is such a collection at N. N. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine where more than 130 varieties and 21 species of the genus Syringa occupies the area of 2.35 ha. It is desirable to compare not only with the check variety that the breeder selected for his hybrid among such, but, if it is possible, with all varieties in the collection close to it by decorative effect. The problem is that the author of a hybrid, sometimes ignorantly or for some other reason, selects a check variety for his hybrid that is not the most decorative one among such, against which a candidate for variety status will be more attractive during its evaluation. In such a case, the breeder should change a check variety that permits to estimate really the decorative effect of a submitted hybrid.

Purpose. To establish the reasons of submitting not highly decorative lilac hybrids to state variety testing so that unpromising varieties and look-alikes can be sometimes included in the world collection, and focus on solving this situation. Methods. Analytical approach. Results. It was established why and how unoriginal hybrids were submitted to state variety testing that for several reasons can allow them to obtain the status of variety. Conclusions. In order to prevent obtaining the status of variety by some low decorative lilac hybrids, it is necessary that both a breeder and testing stations employer should use known presentable collections of identified varieties for evaluation of real value of a new hybrid. In Ukraine, there is such a collection at N. N. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine where more than 130 varieties and 21 species of the genus Syringa occupies the area of 2.35 ha. It is desirable to compare not only with the check variety that the breeder selected for his hybrid among such, but, if it is possible, with all varieties in the collection close to it by decorative effect. The problem is that the author of a hybrid, sometimes ignorantly or for some other reason, selects a check variety for his hybrid that is not the most decorative one among such, against which a candidate for variety status will be more attractive during its evaluation. In such a case, the breeder should change a check variety that permits to estimate really the decorative effect of a submitted hybrid.

Purpose. Providing a scientific rationale for the practical application of analysis of variance elements to determine the range of morphological and value for cultivation and use (VCU) characteristics of Romaine lettuce ‘Skarb’ variety. Results. The Romaine lettuce ‘Skarb’ variety was identified by the type of display of quantitative (QN) identification characteristics. VCU characteristics of the var. longifolia L. varieties were determined and statistically processed. The author focused on practical application of histogram and variation curve of phenotype morphological characteristics when performing the uniformity test. The correlation between quantitative characteristics of lettuce leaf and head was observed when plant productivity was developing. Romaine lettuce yield value was verified statistically. Thresholds were established for the indices under study, confidence intervals were defined over the years of study. Conclusions. The use of Lewis stability factor (S.F. = Xmax/Xmin) allowed to establish the stability of each characteristic display. Practical application of the histogram and variation curve for determining code of display of quantitative morphological characters and the range of VCU characteristics of the Romaine lettuce ‘Skarb’ variety was scientifically grounded.

Purpose. Providing a scientific rationale for the practical application of analysis of variance elements to determine the range of morphological and value for cultivation and use (VCU) characteristics of Romaine lettuce ‘Skarb’ variety. Results. The Romaine lettuce ‘Skarb’ variety was identified by the type of display of quantitative (QN) identification characteristics. VCU characteristics of the var. longifolia L. varieties were determined and statistically processed. The author focused on practical application of histogram and variation curve of phenotype morphological characteristics when performing the uniformity test. The correlation between quantitative characteristics of lettuce leaf and head was observed when plant productivity was developing. Romaine lettuce yield value was verified statistically. Thresholds were established for the indices under study, confidence intervals were defined over the years of study. Conclusions. The use of Lewis stability factor (S.F. = Xmax/Xmin) allowed to establish the stability of each characteristic display. Practical application of the histogram and variation curve for determining code of display of quantitative morphological characters and the range of VCU characteristics of the Romaine lettuce ‘Skarb’ variety was scientifically grounded.