Grain yield and quality of winter wheat cultivars.

The experiment was established at the experimental field of the Small Grains Research Centre in Kragujevac (Serbia) during the two growing seasons. The objective of the research was to evaluate the effect of genotype and the environment on the grain yield of winter wheat cultivars (Takovčanka, Kruna, Planeta and Vizija). The following characteristics were analysed: grain yield, 1000 grain weight and test weight. The average grain yield of all cultivars in the 2010/11 growing season was significantly greater than in the 2009/10 year, mostly as the result of highly favourable weather conditions at major stages of plant development. Takovčanka and Kruna gave significantly higher grain yields in all years compared to Planeta. Averaged across years, significantly higher values for 1.000 grain weight were found in Planeta and test weight was found in Takovčanka. Different responses of cultivars to variable agroenvironmental conditions in terms of grain yield and 1.000 grain weight and test weight require the use of a number of cultivars in the crop structure.