Evaluation of yield and yield components and quality of camelina grain oil under fertilizer application

Oilseeds are one of the most important food reserves in the world and oil production from oilseeds is very important. In order to investigate the effects of sulfur fertilizer (without fertilizer (control), sulfur chemical fertilizer, sulfur-fertile biofertilizer containing thiobacillus and their combined application) on yield, yield components and seed oil of three camelina masses (Kermanshah, Sabzevar and Shahrekord), an experiment was performed as a factorial design based on randomized complete block design with three replications in the research farm of Ilam University in 2020-2021. The results of analysis of variance showed that the combined effects of sulfur + biosulfur on the number of capsules per plant and the number of seeds per capsule were significant at the level of 1% probability. Also, the weight of 1000 camelina seeds was affected by the interactions of sulfur and the type of mass. Application of sulfur fertilizers increased the amount of photosynthetic pigments in camelina leaves. The highest plant height, number of stem per plant and stem diameter were obtained by using sulfur+biosulfur fertilizers. The results also showed that the highest grain yield (2394 kg/ha) of camelina was obtained by using sulfur+biosulfur; which was 8.32% more than not consuming sulfur. The highest oil yield (5.916 kg/ha) was observed with the combined application of sulfur+biosulfur fertilizers and sulfur and biosulfur fertilizers alone were in the second place in terms of grain yield. Non-application of sulfur fertilizer (4.576 kg/ha) had the lowest grain yield, which indicates the effect of sulfur fertilizers on yield indices and camelina oil.