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Резюме. Обсуждаются вопросы формирования признаковой коллекции пеларгоний из секции Pelargonium ветви А рода Pelargonium L.Her.ex Ait. Выделены источники селекционно значимых признаков (P. grandifl orum hybridum Hort.): комплексной устойчивости -'Rica' и 'Розовый Бриз', декоративности цветка -'Lord Butte' и 'Pink Vogel'; компактности куста -'Hazel Perfection' и 'Mistery', позднего срока цветения -'Персиянка'; длительности цветения -'Black Prince'. Источником хозяйственно ценного признака «аромат» являются P. citronellum и Р. crispum.Ключевые слова: коллекция, пеларгония, виды, сорта, генетические источники. Summary. The questions of formation of feature collection of varieties and species of pelargonium from the section Pelargonium branch A of the genus Pelargonium L.Her.ex Ait. are discussed.. The sources of breeding valuable features were identifi ed (P. grandifl orum hybridum Hort.): complex stability 'Rica' and 'Pink Breeze', ornamentality of fl ower -'Lord Butte' and 'Pink Vogel'; compact bush -'Hazel Perfection' and 'Mistery', late fl owering period -'Persian'; duration of fl owering -'Black Prince'. Pelargonium species of Р. citronellum and P. crispum are the sources of economically valuable trait "fragrance".

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This article presents the results of research on search and introduction of natural species of pelargonium in the humid subtropical zone of Russia. Many members of the genus Pelargonium are highly ornamental and well adapted to new growing conditions. On the basis of the Russian Research Institute of Floriculture and Subtropical Crops, a collection of pelargonium was formed, which has about 200 accessions, includes species, varieties of domestic and foreign breeding (159 samples) and hybrid forms of great interest for breeding work. Hybrid Fund contains 50 promising hybrids, 17 of which are elite forms. According to the classification refined in 2014 by the German scientist J. Roeschenbleck it has representatives of all four branches (A, B, C1 and C2), four subgenera and 6 sections. Subgenus Pelargonium: Pelargonium section and Otidia; subgenus Parvulipetala: sections Peristera and Reniformia; subgenus Magnipetala: section Myrrhidium; subgenus Paucisignata: section Ciconium. The objects of research are the species of pelargonium sections of the Pelargonium, Peristera and Myrridium. A unified description of rare and promising species of pelargonium is given. Phenological phases of species pelargonium development were established. Peculiarities of their growth and reproduction under new growing conditions were studied. Species most adapted for cultivation in the humid subtropics of southern Russia were identified on the basis of a comprehensive evaluation of ornamentality and biological features. Maximum points (80) according to the General ornamental effect was observed in three types: P. сordifolium, P. fruticosum, P. canariensе. Pelargonium canariensе and fruticosum are long-flowering (more than 100 days), aromatic, resistant to biotic and abiotic stressors. P. australe, P.canariensе, Р. exstipulatum and P. cordifolium can be used in breeding as sources of useful traits.

The article presents the results of many years of breeding studies with species and varieties of the genus Pelargonium L`Herit. A genetic collection of pelargonium has been formed on the basis of the Subtropical Scientific Center of the Russian Academy of Sciences. It has 215 accessions and includes 35 natural species, 30 varieties of domestic and 150 foreign breeding. The hybrid fund contains 77 variety and 59 interspecific hybrids. Hybridization of species, varieties and hybrids of P. crispum, with a set of positive qualities, was carried out. The breeding is aimed at creating varieties of a new generation, not only decorative, but also aromatic. The following species in interspecific crosses involved the types of: P. crispum (Berg.) L’Herit., P. betulinum (L.) L’Herit, P. capitatum (L.), L’Herit., P. citronellum J.J.A. van der Walt, P. cordifolium (Cav.) Curt., P. cucullatum (L.) L’Herit., fragrant pelargonium variety ‘Gemstone’, interspecific hybrids Sp12-01, Sp-12-05 and Angel varieties: ‘Michael’, ‘Tip-Top’, ‘Pansy’, ‘Ralf’. Promising hybrids most adapted for cultivation in the humid subtropics of southern Russia were identified on the basis of a comprehensive evaluation of ornamentality and biological features. The possibilities of creating new modern pelargonium genotypes using the interspecific hybridization method are demonstrated. The object of research was a hybrid fund of interspecific crosses of 2012-2017. Species and varieties that are capable of transmitting to the first generation of hybrids a complex of breeding-significant characters: P. crispum, R.‘Gemstone ’and‘ Freshness of Morning ’have been identified. Morpho-biological features of interspecific hybrids are studied. Six hybrid forms have been identified for cultivation in the humid subtropics of Russia. They are promising for phytocompositions in sanatorium parks. Hybrids GG 15-15 and Sp16-07 are interested for further breeding as sources of breeding-significant characteristics (aroma and adaptability) for creation new generation of domestic varieties.