Studying hybrids of sugar corn under the conditions of the foothill zone of the KBR

Abstract

This work is devoted to the study of various hybrids of sweet corn of a new selection, recommended for cultivation in the conditions of the South of Russia. The objects of study were the first generation sweet corn hybrids: Spirit, Boston, Royalty, Vega and Overland, with maturation periods from 75 to 85 days. Sowing was carried out at the same time with reference to weather conditions and varied over the years of research. So in 2020, the sowing of all hybrids was carried out on April 25, and in 2021 it was possible to sow only on May 5. The productivity of sweet corn is highly dependent on the choice of grown hybrids, as well as growing conditions. Sweet corn seeds were purchased from trusted suppliers with a certificate of conformity. In all hybrids, under conditions of sufficient humidity, germination was high, which is explained by the simultaneity of seedlings and high germination energy. Later, getting into different growing conditions during the growing season, the shape of plants, the area of leaves, and the yield of cobs changed. The yield of commercial cobs of the studied sweet corn hybrids is closely related to their biometric parameters. The Vega and Overland hybrids showed the highest increments in the yield of commercial cobs and exceeded the control by 3.8 and 4.9 t/ha or by 18 and 23%. Hybrid Spirit, which was the control variant, showed the lowest yield. This is due to the fact that other studied hybrids are more adapted to the soil and climatic conditions of this zone.