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EVALUATION RESULTS OF A LEVEL OF MANIFESTATION OF THE COMPLEX OF TRAITS OF INTEREST IN SEEDLESS GRAPES VARIETIES FOR THEIR FURTHER APPLICATION IN THE BREEDING PROCESS

Author(s) Kovalova I. A. , PhD of Agricultural Sciences, , NSC «Tairov Institute of Vityculture and Winemaking»
Skrypnyk V. V. , , , NSC «Tairov Institute of Vityculture and Winemaking»
Gerus L. V. , PhD of Agricultural Sciences, , NSC «Tairov Institute of Vityculture and Winemaking»
Mulyukina N. A. , Doctor of Agricultural Sciences, , NSC «Tairov Institute of Vityculture and Winemaking»
Category 203 "Horticulture and Viticulture"
year 2019 issue №2, 2019
pages 103-109 index UDK 634.836:581.522.4
DOI 10.31395/2310-0478-2019-2-103-109 (Link)
Abstract In this article we consider the possibility of breeding of Ukrainian highly adaptive and highly productive seedless grape varieties using the best introduced, geographically and genetically distant genotypes. Based on the main modern trends in grape breeding and the necessity to replenish autochthonous assortment of seedless varieties, 35 grape cultivars from 12 countries were evaluated according to a development level of seed traces. The National Center for Plant Genetic Resources of Ukraine registered a database of seedless grape varieties. A possibility of effective use of modern breeding and natural genetic diversity regarding stress factors in order to develop successful strategies for the selection, creation, and propagation of grape varieties which are the most adaptive to specific cultivation conditions was demonstrated. Methods of performing the breeding task were optimized by modeling the main selection criteria and determining the correlation between traits of interest. Following highly productive, ecologically plastic seedless genotypes, which showed traits at a level not lower than the one set by the model in conditions of the Northern Black Sea Coast (yield not lower than 12 t/ha, marketability not lower than 70%, average weight of bunch not less than 350 g, etc.), stood out: “Kishmish tairovskii”, “Mechta”, “Beogradska besemena”, “Mars”, “Marquis seedless”, “Jupiter”, “Venus”, “Kishmish luchistii”, “Rusensko bez seme”, “Rusalka 3”, “Flame seedless”, “Gleanora”, “Attika”. Potential applications of these cultivars in the breeding process as parent varieties in creating seedless, highly adaptive and productive Ukrainian varieties were determined.
Key words grapes, variety, genotype, seedlessness, productivity, adaptability, stress factor, stress tolerance
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