Fatty acid composition of sunflower hybrids influenced by year and biostimulators

Sunflower (Helianthus annuus L.) is grown in Slovak growing conditions for edible oil of high quality, its composition unsaturated fatty acids affects the human health positively. Influence year, hybrids (Marbelia CS and Reasun DS-5) biostimulating preparations (Florone Fertisiline) on yield, content, amount selected (oleic, linoleic, palmitic, stearic acids) was find out this study. Also evaluate relationship within achieved yield content with obtained acids. Field small-plot experiments were established by randomized split plot method during years 2018 2019. The experimental field situated a warm maize production area, while course weather individual seasons different. On an average period 2018-2019, more favorable temperatures precipitation recorded 2018. Significantly higher achene (3.29±0.35 t/ha) (oleic acid 62.11±4.33%; linoleic 45.32±4.62%; palmitic 5.26±0.33%; 4.21±0.20%) found DS-5 hybrid. Both had significant effect oleic when both biostimulators applied BBCH 15 55. decreased applications 33.88±10.57%; Fertilisine 34.11±13.37%) 15, 55 ((Florone 34.08±12.34%; Fertisiline 34.26±13.40%) compared control treatments (38.43±6.01%). contents treated variants 38.26±9.47%; 39.03±8.95%) statistically non-significant comparison to untreated control. height negatively correlated (r= -0.310; P<0.01) A positive correlation relationships between (r=0.35; P<0.01), acid, (r=0.51; (r=0.86; (r=0.45; P<0.01).