Abstract
The paper highlights the assessment of Verhnyatska selection new combination valuable multigerm of lines – pollinators (МP) efficiency, МS of lines of a different origin and heterozis of hybrids created on their basis. Verhnyatska МP are productive, combination-valuable and plasticity, proved by the hybrid combinations with МS by materials of all skilled-selection stations of a network of Institute of biocrops and sugar beet. At the grade test of 2018 more successful were combinations with МS by lines Ivanivska and Bila Tserkva research selection station. Sugar yield in hybrids made 111.4–108.9 % on the average. A number of experimental hybrids line created with Verhnyatcka selection lines-pollinators in 2019 is listed among the best in sugar yield per hectare. The submitted hybrids STs191125 and STs191134 were characterized by a high parameter of productivity (117.6 and 113.8 % to the standard accordingly). A number of the best hybrids for study in variety ecological testing is selected. Heterosis effect was observed in some cross combinations. The best parameter on productivity (110.0 %) was in the hybrid STs191135 – МS originator of a line of Yaltushkivska RSS. Sugar yield and output were higher than the standard by 8.4 and 14.2 %. The satisfactory parameters of efficiency were observed in the STs190309 hybrid. Its productivity made 104.0 %, sugar yield – 104.1 %, sugar output – 111.8 % to the standard. Significantly high sugar output was in the hybrid STs190815 (119.6 %), where both components of crossing were of Verhnyatska selection. The parameters of productivity, sugar content and yield were 107.7, 100.9 and 109.2 %. Due to a genetic variety of initial materials and successful selection of parental components, their combinational ability and plasticity made it possible to receive new hybrids. Multigerm line-pollinators have high selection value of efficiency parameters. Key words: sugar beet, multigerm, pollinator, fertility, selection, hybrid, productivity.
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