Can foliar-applied nutrients improve caraway (Carum carvi L.) seed oil composition?

Caraway seeds contain between 0.5–7% essential oil, rich in monoterpenes that have a characteristic aroma and chemical properties. oil has several bioactive compounds are of industrial importance, particularly for pharmaceutical health care products. Carvone limonene the main terpenes present caraway which along with some unique fatty acids (i.e. petroselinic acid) determine (Carum carvi L.) quality. Both important raw materials applications their concentration influences price seed hence there is need identifying management practices may increase these other to improve A field experiment five treatments: control series foliar-applied micronutrients (either Cu, Mg, Mn or Zn was done identify potential enhance Solid-phase microextraction gas chromatography flame ionization detector were used characterize Our results indicate while micronutrient treatments significant effect on composition, both carvone limonene, such an not found all but only two them—palmitoleic vaccenic acid—, highest after treatment. Overall, content decreased least years following treatment also caused second year contrast trend treatments. The foliar spray needs be studied further elucidate whether it could consistent positive quality upon adjusting dosage spraying time.