Effect of seed protection on the mass of 1,000 grains of three winter wheat genotypes, inoculated with tilletia tritici

Abstract

A trial was set up in field conditions during 2003/04-2005/06 with seven different treatments of seed protection and three winter wheat varieties. Vizija variety had lower mass of 1,000 grains in comparison with Pobeda and PKB-Christina varieties, the difference being highly significant. By changing seed protection mode, the mass of 1,000 grains changed. A highly significant difference was established between control (39.8 g) and the variants treated by diviconazole (41.5 g). However, the mass of 1,000 grains of variants treated by difeconazole, carboxine + tiran and tebuconazole + triazoxine was at the level of controls and significant differences among these treatments were not determined. Treatment of electronic seed protection by means of plasma electrons showed significantly lower mass of 1,000 grains than it is the case of fungicidal protection by diviconazole, being on the level of control. Highly significant differences were established between years when the research was performed. High interactions between variety x years, variety x treatment, year x treatment and variety x year x treatment, were established. Strong positive correlation was established between mass of 1000 grains and wheat yield.