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Information × Registration Number 0206U005313, 0105U004190 , R & D reports Title To work out and improve elements of the technology on creation and introgression of mixed germplasm of compatible species separately within the limits of Lycopersicon Tourn genus popup.stage_title Head Samovol A.P., Доктор сільськогосподарських наук Registration Date 15-03-2006 Organization Institute of vegetable and melons Ukrainian Academy of Agrarian Sciences popup.description2 Object of investigations - intra- and interspecific hybridization, induced recombinogenesis and gamete breeding as main ways for raising biochemical and adaptive potential of tomato cultured varieties and hybrids. Aim of the work - to work out and improve elements of theoretic bases of technologies: creation F1 hybrids with high potential productivity and ecological resistance, creation and introgression of mixed germ plasm of remote and wild species into genomes of varieties and hybrids. Results of investigations - in 2001-2005 there was conducted a genanalysis, morphologic and cytologic evaluation of 10 selected tomato isolines, resistant to extreme temperatures. In 10 tomato lines there were investigated bioelectric properties of a cell nucleus and cytologic parameters of meiosis (qualitative and quantitative distribution of chiasmas, % of faults). There were created 8 polyspecific tomato hybrids, which ensured output of 10 isolines with high potential productivity, biotic and abiotic resistance, with content of biologically-valuable components in fruits. There were worked out and improved 2 technologies for optimization breeding process in tomato. Coupled with scientific researchers from Donets'к Research Station, Cherkas'k Sector of IVM, UAAS and Prydni-strovs'k Scientific Research Institute of Agriculture there are created and recognized 3 varieties and 1 F1, hybrid of tomato (Alieta, Siaivo, Makiivs'kyi, Chyhyryns'kyi). KEY WORDS: RECOMBINATIVE VARIABILITY, TOMATO, FREQUENCY OF CHIASMAS, MEIOSIS, INTROGRESSION, ISOLINES, BIOLOGICALLY-VALUABLE COMPONENTS OF A FRUIT, MENDEL CORRELATION, INTERSPECIFIC HYBRIDS, GAMETOPHYTE SELECTION, CYTOBIOPHYSICAL PARAMETERS, WILD SPECIES, SPLITTING POPULATIONS, RECOMBINATION Product Description popup.authors popup.nrat_date 2020-04-02 Close