title: Effects of Plant Density on the Number of Glandular Trichomes and on Yield and Quality of Essential Oils from Oregano.
abstract: Plants yields are influenced by agronomic techniques. Plant density is a complex issue and extremely important when maximizing both crop quality, and biomass and essential oil yields. Plants belonging to the Origanum vulgare subspecies hirtum (Link) Ietswaart were grown adopting four types of plant density and were characterized in biometric and chemical terms. The samples were analyzed using the ANOVA (Principal Component Analysis) statistical method regarding biometric aspects, EO yield and peltate hair density. Essential oil (EO) was extracted by hydrodistillation and analyzed using GC-FID and GC-MS. GC-FID and GC-MS analysis led to the identification of 45 compounds from the EO. Plant density affected production both in terms of biomass and EO. However, it was not found to have affected peltate glandular trichome density or EO quality.
authors.forename: Teresa
authors.initials: T
authors.lastname: Tuttolomondo
authors.forename: Salvatore
authors.initials: S
authors.lastname: La Bella
authors.forename: Claudio
authors.initials: C
authors.lastname: Leto
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Bonsangue
authors.forename: Raffaele
authors.initials: R
authors.lastname: Leone
authors.forename: Maria Cristina
authors.initials: MC
authors.lastname: Gennaro
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Virga
authors.forename: Rosalinda
authors.initials: R
authors.lastname: Inguanta
authors.forename: Mario
authors.initials: M
authors.lastname: Licata
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D009822:Oils, Volatile / Q000737:chemistry*; D031341:Origanum / Q000737:chemistry / Q000254:growth & development* / Q000648:ultrastructure; D011786:Quality Control; D064201:Trichomes / Q000737:chemistry / Q000254:growth & development* / Q000648:ultrastructure
chemical_list: D009822:Oils, Volatile