Document Type : Research Paper
Authors
Abstract
For investigating the effects of nitrogen, phosphor and bovine fertilizers on essential oil content and composition of feverfew (Tanacetum parthenium L.), an experiment was arranged based on Complete Randomized Blocks Design, in three replication, from February 2009 to October 2010, at research farm of Research Institute of Forests and Rangelands. The treatments were: 1- nitrogen fertilizer in three levels (60, 90, 120 kg/ha), 2- triple superphosphate fertilizer in two levels (60 and 80 kg/ha) and the 3- bovine fertilizer in three levels (0, 15 and 30 tons/ha). The aerial parts of the plants were collected at the beginning of flowering and after drying their essential oils were obtained by hydro-distillation and analyzed by GC and GC/MS. The results showed that different levels of urea fertilizer had significant effects on essential oil percentage and yield at level of 1%. Also, nitrogen fertilizer had significant effects on percentage of chrysanthenyl acetate and santolina triene. Bovine fertilizer had also significant effects on oil percentage and yield, camphor, camphene and santolina triene percentage at level of 5%. The highest amounts of oil percentage (0.32%) and yield (19 kg/h) were obtained by application of 60 Kg/h urea fertilizer. In addition, GC and GC/MS analysis showed different levels of bovine fertilizer had significant effect on percentages of main components of feverfew essential oil.
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