Ecology, Environment and Conservation Paper

PRODUCTIVITY OF CORN HYBRIDS IN THE NORTH-EASTERN UPPER VOLGA REGION, RUSSIA

Z.I. Usanova, P.I. Migulev, Yu.T. Farinyuk and M.N. Pavlov

Abstract

This paper presents data on characteristics of growth, development, and yield formation of 34 corn hybrids obtained in 2019 at the “Skopa” LLC, the Sonkovsky District of the Tver Region (Russia). Four groups of hybrids with different productivity levels were identified. Average values of corncob and herbage yield and moisture-free herbage yield were the following: first group – six hybrids (17.6%), 79.48 t/ha and 18.55 t/ha; second group – six hybrids (17.6%), 58.97 t/ha and 11.1 t/ha; third group – 13 hybrids (38.2%), 41.1 t/ ha and 9.4 t/ha; fourth group – nine hybrids (26.1%), 31.2 t/ha and 7.3 t/ha. The hybrids LG 30189 (Lima Grain, France) and Zeta 110 S (LABOULET, France) were the most productive: corncob and herbage yields were 87.5 t/ha and 91.8 t/ha, respectively, and moisture-free herbage yields were 21.39 t/ha and 18.52 t/ ha, respectively. Of the Russian hybrids, Kaskad 195 SV (Rossosh gibrid), ZP 190 SV, and Voronezh 158 (Zolotoy pochatok) were the most productive: corncob and herbage yields were 44.8-49.0 t/ha, and moisturefree herbage yields were 9.10-10.7 t/ha.