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Purpose. To analyze the varietal potential of breeding, the optimization of the varietal structure of production and the frequency of changes in the commonly used varieties of tobacco (Nicotiana tabacum L.) in the Republic of Bulgaria.Methods. Comparative, statistical, analytical ones.Results. The retrospective analysis of tobacco (Nicotiana tabacum L.) breeding in Bulgaria shows that 158 vari ...

POSTED TO: Plant varieties studying and protection [2518-7457]

Purpose. To define the regularities of yield level for spring barley varieties in “genotype–environment” interaction when testing in different ecological zones environments of Ukraine and identify genotypes with increased adaptive potential. Methods. As object of the research there were 36 spring barley varieties of domestic and foreign breeding. Varieties were tested at the V. M. Remeslo Myro ...

POSTED TO: Plant varieties studying and protection [2518-7457]

Purpose. To establish biological features of plants growth and development and the formation of Miscanthus giganteus planting material depending on the cultivation technology elements. Methods. Field, laboratory, visual, weight measu­ring, mathematical and statistical ones.Results. The features of the growth and development of the miscanthus bioenergy crop were investigated including the forma ...

POSTED TO: Plant varieties studying and protection [2518-7457]

Purpose. To evaluate and select hybrids, varieties of the parental nursery of the breeding process, biotechnological lines and wild species of potato for physiological parameters of drought resistance.Methods. Physiological and biochemical, selection ones, statistical data processing.Results. The data is given concerning the evaluation of the water retaining and water regeneration capacity of ...

POSTED TO: Plant varieties studying and protection [2518-7457]

Breeding indices of spring wheat varieties

Хоменко, С. О. et al. [2017]

Purpose. To establish the most effective index figures for determination of breeding value of spring wheat genotypes.Methods. Field and statistical ones. Index of prospectivity – IP, Finno-Scandinavian index – FSI, Mexican index – MI, Bila Tserkva index – BI, Poltava index – PI, index of spike linear density – ISLD, index of spike density – ISD were defined.Results. During the investigation pe ...

POSTED TO: Plant varieties studying and protection [2518-7457]

Purpose. Typingsoybean (Glycinemax (L.) Merr.) culti­vars of Ukrainian and foreign breeding for microsatellite mar­ker Satt100 of E7 gene of photoperiod sensitivity. Methods.DNA recover from seedlings on columns with sorbing membrane; polymerase chain reaction (PCR); horizontal gel electro­phoresis; amplification products size determination using “GelAnalyzer 2010a” program. Results. PCR analy ...

POSTED TO: Plant varieties studying and protection [2518-7457]

Purpose. To select alien genes among those identified and described in special literature that are resistant to brown rust and introgressed in Triticum aestivum L. sources, determine their origin and prospects of use in breeding practice.Results. Soft spring wheat as the basic cereal crop belongs to the group of plants cultivated in controlled conditions for a long time. During the vegetation ...

POSTED TO: Plant varieties studying and protection [2518-7457]

Purpose. To analyze the level of cross-resistance of obtained salt- and osmotolerant cell lines and plants regenerants of winter triticale to osmotic and salt stresses. Methods. Cultures of tissue and organs in vitro, in vitro breeding, biochemical, statistical analysis. Results. It was established that the stability of cross-resistance trait display to saline and osmotic stresses in obtained ...

POSTED TO: Plant varieties studying and protection [2518-7457]

Purpose. To determine the optimal time for harvesting in nurseries of primary seed production of white lupine. Methods. Field, laboratory and statistical methods of material evaluation were used. Sowing qualities were studied in the laboratory separately for seeds from the central and lateral racemes in accordance with DSTU 2240-93 (State Standard of Ukraine).Results. The results of studies on ...

POSTED TO: Plant varieties studying and protection [2518-7457]

Purpose. To investigate the variability of biometrics indices and productivity of cutting lettuce varietis (Lactuca sativa L. var. secalina) of Dutch breeding on soddy medium podzolic soil in the northern part of the Forest-Steppe zone of Ukraine.Methods. Field, biometric, comparative, statistical ones, generalizations. Results. The results obtained during the study of peculiarities of forming ...

POSTED TO: Plant varieties studying and protection [2518-7457]