Influence of different substrate on sunflower parents line seed germination

Abstract

Germination is a feature that is characteristic of each individual genotype. If unfavorable conditions can occur during the seed processing, storage, seed treatment, transport, germination and emergence, the value of this parameter may decrease. Therefore the aim of this study was to determine whether the substrate affects seed germination of two sunflower parental lines treated by various combinations of pesticides and stored in different storage conditions. The study involved two substrates for germination - sand and soil. The seed was treated with fungicides: benomyl, metalaxyl and fludioxonil, insecticides: thiamethoxam and imidacloprid, control was untreated seed. The seeds were stored in a warehouse and a cold chamber. Based on the F - test of ANOVA, a significant influence of substrate on seed germination of both examined lines was determined. Seed germination in the soil was significantly higher than in sand – at line L-1 for 16.77%, and line L-2 for 6.54%. The L-1 line noted the existence of a significant effect of storage conditions, the impact of chemical treatment was not significant, and only interaction the storage conditions x substrate were statistically significant. Line L-1 also saw the existence of a significant impact of storage conditions, not significant impact of chemical treatment, and statistically significant only of interaction storage conditions x substrate.