RESULTS OF RESEARCH ON PRODUCTIVITY AND ADAPTABILITY OF SUNFLOWER HYBRIDS OF SYNGENTA LLC IN SOIL AND CLIMATIC CONDITIONS OF THE REPUBLIC OF TATARSTAN

Abstract

The research was carried out to study the productivity and adaptability of sunflower hybrids SI Chester, Rosetta, Arco, Alcantara, SI Avenger, NK Fortimi, Suomi HTS, Suzuka HTS in the soil and climatic conditions of the Republic of Tatarstan. Field experiments were carried out in 2020-2021 on the basis of the Agrobiotechnopark (Narmonka village of the Laishevsky municipal district of the Republic of Tatarstan), laboratory analyses were carried out at the Agroecological Research Center of the Kazan State Agrarian University. According to the research results, it was found that Fortimi and Avenger hybrids differed in plant safety before harvesting and in height (99.8% and 172 and 166 cm, respectively). According to these indicators, it can be concluded that Fortimi and Avenger hybrids are more adapted to the soil and climatic conditions of the Republic of Tatarstan. In field experiments, a direct correlation was observed between the number and mass of weed plants and the height of sunflower plants. The least contamination was on tall crops of the Fortimi hybrid (5.2 pcs/m2 and 4.1 g/m2, respectively). The hybrids Fortimi and Avenger also differed in the structure of the crop. So, according to the hybrids, the largest diameter of the basket was 13.5 and 12.0 cm and the largest mass of 1000 seeds was 70.7 and 68.4 g, respectively. Four of the six hybrids studied showed very high yield results. In the experiments, the following yield indicators were obtained: Alcantara (3.29 t/ha), Fortimi (2.46 t/ha) and Rosetta (2.32 t/ha). These hybrids provided a gross harvest of oilseeds by 1.29; 0.46; 0.32 t/ha, respectively, higher than the planned yield of 2.0 t/ha.