NS maize hybrids in production regions of Serbia

Abstract

Fifteen NS maize hybrids of FAO 300-700 maturity groups were evaluated in strip trials (plot size 1,120 m2) at 30 locations in Serbia. In all locations including all production regions, the most yielding hybrid was NS 6030 with average yield of 10.9 t ha-1. The additive Main Effects and Multiplicative Interaction (AMMI) and the sites regression (SREG) models were used to study basic structure of G x E interactions and the possible existence of different mega-environments in Serbian maize growing regions in 2009. The results of the 15 hybrids x 10 locations for grain yield in maize showed by biplot technique indicate several specific location-hybrid deviations (the AMMI biplot), and possible existence of at least one mega-environment (the GGE biplot).

Ova istraživanja su deo višegodišnjih istraživanja čiji je cilj rejonizacija hibrida kukuruza. Tokom 2009. ispitivano je 15 hibrida FAO grupa zrenja 300-700 u 30 lokacija na teritoriji Srbije. Najveći prosečan prinos zrna ostvario je hibrid NS 6030 (10,9 t ha-1). Za ocenu strukture interakcije genotip x sredina i mogućeg postojanja različitih mega-sredina (mega environment) u proizvodnim rejonima Srbije korišćeni su matematički modeli AMMI i SREG. Rezultati ispitivanja prinosa zrna kod 15 hibrida na 10 lokaliteta ukazuju na postojanje specifičnih devijacija lokalitet-godina (AMMI biplot) i najmanje jedne mega-sredine (GGE biplot).