Comparative characteristics of yield crop of corn hybrids in agro-climatic conditions of Republic Mari El

Abstract

The object of research was 20 maize hybrids, bred by the Voronezh branch of the All-Russian Research Institute of Corn. The aim of the work was a comparative assessment of maize hybrids on the main feed characteristics when cultivating them in the agro-climatic conditions of the Republic Mari El. As a result of biennial studies it was revealed that among the studied maize hybrids cultivated on green mass in the territory of the Republic Mari El in 2015 the best feed characteristics had hybrids: Voronezh 185-15 (16342 f.u./he), Voronezh 173-12 (17554 f.u./he), Voronezh 189-15 (15134 f.u./he), Cascade 195 NE (15134 f.u./he), Voronezhsky 193A-15 (16215 food units/he), Voronezh 195-15 (15276 f.u./ he), which synthesized 50-60 tons of green mass per hectare of sowing and accumulated 15,2-17,7 tons of dry matter. The greatest grain yield among the studied maize hybrids was noted in the Voronezhsky 191-15 and Voronezh 158 CB hybrids, which formed 13,7 and 16,3 t/he of grain with a moisture content of 35% and 36,1%, respectively. In terms of the standard moisture content the cereal productivity of these hybrids was 12,9 and 14,5 t/he. Under the conditions of 2016 the best feed characteristics were observed in hybrids of VTG 173-12, VTG 195-15, VTG 189-15, VTG 26916, VTG 185-15, which synthesized 33,3-39,4 tons of green mass on hectare of sowing, accumulating 9,49-12,42 tons of dry matter. The greatest grain yield among the studied maize hybrids was noted in the Cascade 166 ASB hybrids (9,78 t/he) and VTG 270-16 (10,12 t/he). The moisture content of the grain during harvest was 29,98% and 35,6%, respectively.