The effects of different nitrogen and phosphorus doses on essential oil components of some Mentha genotypes

Authors : Meryem YEŞİL, Kemalettin KARA

Pages : 882-893

View : 17 | Download : 6

Publication Date : 2016-12-01

Article Type : Research Paper

Abstract :The present study was conducted in Erzurum during the years 2010 and 2011 to determine the effects of different nitrogen and phosphorus doses on essential oil components of spearmint genotypes insert ignore into journalissuearticles values(Mentha spicata L. and Mentha villoso-nervata Opiz.);. Two genotypes of Mentha spicata insert ignore into journalissuearticles values(genotypes 2 and 6); and one genotype of Mentha villoso-nervata insert ignore into journalissuearticles values(genotype 4); were tested under three nitrogen and phosphorus doses insert ignore into journalissuearticles values(0, 50, and 100 kg/ha); in a randomized complete block design with three replications. Essential oil components of the genotypes were determined and subjected to variance analysis. Effects of experimental year and nitrogen and phosphorus doses on investigated traits were found to be significant. Considering the experimental years of 2010 and 2011 and the nitrogen-phosphorus fertilizer doses, 1.8-cineole contents varied respectively between 2.12% and 3.98% insert ignore into journalissuearticles values(for nitrogen treatments); and between 2.42% and 3.77% insert ignore into journalissuearticles values(for phosphorus treatments);; 4-terpineol contents varied between 1.34% and 2.74% and between 1.30% and 2.73%; pulegone contents between 3.41% and 9.64% and between 4.11% and 8.93%; carvone contents between 21.05% and 33.64% and between 21.77% and 33.54%; piperitone contents between 2.41% and 17.75% and between 2.04% and 17.60%; and finally caryophyllene between 3.98% and 4.93% and between 3.62% and 4.49%, respectively. The greatest 1.8-cineole content was observed in genotype 4 in the first year and in genotype 2 in the second year. Genotype 6 was prominent for 4-terpineol, pulegone, and caryophyllene contents in both years and genotype 4 was prominent for carvone content. The greatest piperitone content was observed in genotype 6 in the first year and in genotype 2 in the second year.
Keywords : Carvone, essential oil components, fertilizer, Mentha spicata, Mentha villoso nervata, spearmint