Influence of substrate, chemical treatment and length of storage on sunflower seed germination

Abstract

For determination of sunflower seed quality several substrates are in use: sand, soil, compost and filter paper where sand is most commonly used. Sand enables good contact of seeds and substrate and decreases possibility of contamination with pathogens. In addition, sand could be reused after sterilisation while other substrates are recommended for one use, which makes them more costly. For that reason, soil, compost and filter paper are not so frequently used. They find their place in research and comparative studies. Aim of this research was to determine if there is interaction between type of substrate and seed germination especially in case of seed protected with pesticides and stored in storage facilities. Research was conducted using hybrids NS-H-111 and Sremac, created in Institute of Field and Vegetable Crops. Seed germination was determined in laboratory conditions using standardized test, on hundred seed sample in four replications and temperature of 25°C and relative humidity of 95% with ten-day incubation period. Seed was germinated in sand, compost and filter paper.