Comparative study of simple interline and three-way cross maize hybrids

Domestic interline maize hybrids are predominantly three-way cross in structure, and foreign breeding seed companies prefer simple hybrids. In order to improve the competitiveness of domestic breeding, it is necessary reorient hybrids, which, turn, requires information on whether have an advantage specific soil climatic areas. The purpose current study was conduct a comparative new according grain productivity uniformity economically valuable traits under unstable moisture supply. carried out experimental field crop rotation laboratory for production FSBSI “ARC Donskoy” 2019–2021. objects were 10 developed by method complete topcrosses. establishment trials, records, biometric measurements phenological observations conducted accordance with methodological recommendations conducting trials maize. There has been found that (3.49–4.65 t/ha) turned be significantly larger than (2.84–3.70 t/ha), mean excess 0.78 t/ha or 23.6 %. Simple characterized best length vegetation period (V = 0.58–2.13 %), height ear attachment 5.0–11.3 plant 2.8–4.8 and, consequently, better harvesting adaptability. negative correlation (r –0.49...–0.69) between variation terms maturation, attachment. no structure such as harvest moisture, resistance lodging smut “virus”. Due set there identified hybrid ‘Zernogradsky 367’.