Effects of organic manure and nitrogen fixing bacteria on some essential oil components of coriander (coriandrum sativum)

ABSTRACT: In order to study the effect of organic manure and nitrogen fixing bacteria on some essential oil components of coriander (Coriandrum sativum), an experiment was conducted as factorial experiment in the base of randomized complete blocks design with twelve treatments and three replications at homand research station in Damavand of iran in 2010. The factors were cattle manure in four levels (5 , 10 , 15 and 20 ton/ha) and nitrogen fixing bacteria in three levels (inoculation with azotobacter, inoculation with azospirillum and inoculation together). Results showed that the highest geranyl acetate in essential oil were obtained with application of 5 ton/ha cattle manure. The maximum limonene in essential oil were obtained after applying 20 ton/ha cattle manure. Nitrogen fixing bacteria also showed significant effects on geranyl acetate, limonene and beta pinene in essential oil (except camphor). The maximum geranyl acetate and limonene in essential oil were obtained with treatment of inoculation together (azotobacter + azospirillum) and beta pinene in essential oil were obtained with azospirillum inoculation