Evaluation of new corn hybrids in the conditions of the foothill zone of Kabardino-Balkaria

Abstract

The results of creating corn hybrids with yields no lower than 8-11 t/ha, with good wateryielding capacity during ripening, with good enough lodging and resistance to biotic and abiotic environmental factors are presented. Scientific and practical work was carried out in 2020, 2021 in the experimental field of the Laboratory of Breeding and Seed Production of Early-Maturing Corn in the Foothill Zone of the Kabardino-Balkarian Republic. Evaluation of hybrid combinations of different ripeness groups: early-ripening with an index of early maturity FAO 170-220 and mediumripening - FAO 220-300 was conducted. Planting experiments in the control nursery and the study of experimental hybrid combinations on the main economic values were carried out according to generally accepted methodological recommendations. The hybrids were studied for the main economically valuable traits: harvest grain moisture, grain yield, grain yield at 14% moisture. In the ripeness group FAO 170-220 by harvesting moisture 8 hybrids were noted, by grain yield - 6, by grain yield - 7 combinations. In the variant FAO 220-300, 5 hybrid combinations were selected for harvesting moisture content, 7 hybrid combinations for grain output, 3 hybrid combinations for grain yield. This work on the evaluation of corn hybrids in the control nursery was carried out in accordance with the plan of research work. All hybrids selected in the scientific and practical work exceeded reliably (according to the evaluated indicators) the standard values in their ripeness groups.