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Information × Registration Number 0221U101072, 0116U001050 , R & D reports Title To Develop Theoretical Foundations of Multicriterion Selection of Maize Breeding Material to Create Hybrids for Different Purposes with Optimum Concordance of Morphogenetic Responses and Dynamics of Environmental Factors popup.stage_title Head Chernobay Larysa M., Доктор сільськогосподарських наук Registration Date 13-01-2021 Organization Plant Production Institute nd. a. V. Ya. Yuriev popup.description2 Study object – corn breeding. Purpose - to increase the efficiency of corn breeding by developing theoretical foundations of multi-criteria selection of breeding material to create hybrids for different purposes. Methods - breeding, genetic, phytopathological, statistical. Theoretical and practical results - in 2016-2020, 4,740 accessions were produced and studied in a breeding nursery; accessions valuable because of their economic characteristics, combining ability, resistance to bio- and abiotic factors were identified. 2,550 accessions were studied in a collection nursery; 12 inbred lines with valuable economic characteristics were registered with NCPGRU Ukraine; five donor lines received registration certificates. 120 haploid corn plants were obtained on sheltered ground. The pattern and rate of the water-yielding capacity of grain in 104 corn lines belonging to various ripeness groups from 12 countries were studied; a utility model application for "Method for Determining Water Content in Corn Grain" was submitted. 539 hybrids were competitively tested; large-scale field trials of corn hybrids were carried out in different regions of the Steppe and Forest-Steppe of Ukraine. Novelty - creation of high-yielding corn hybrids that are resistant to bio- and abiotic environmental factors. Thus, in 2016-2020 11 hybrids were transferred to the State Qualification Examination, including in 2020 two mid-early hybrids Hart FAO 280 and mid-ripening Arho FAO 300; 14 hybrids were entered in the State Register of Varieties of Ukraine. The methodical recommendations "Solving Optimization Problems in Corn Breeding and Seed Production using Microsoft Excel" were published. In 2016-2020, 129.5 tons of seeds were produced: 20.3 tons of parents and 109.2 tons of the first generation. Hybridization plots for eight corn hybrids bred at the Plant Production Institute were laid out on farms of different forms of ownership in eight regions of Ukraine Product Description popup.authors Bibel Yuliia O. Barsukov Ihor P. Derkach Iryna B. Kuzmyshyna Nataliia V. Muzafarov Nail M Ponurenko Serhii H. Sikalova Olena V popup.nrat_date 2021-01-13 Close