Biomass, yield and composition of Melissaofficinalis essential oil as a function of organic and mineral fertilization

by Borges Sodré, Ana Carolina

Abstract (Summary)
Common balm, Melissa officinalis is a medicinal plant with great incrementperspective for the cosmetics industry due to its essential oil. Studies on agriculturalpractices are required to optimize its yield. This study evaluated the effect of differentdoses of organic fertilizer (cow manure) in comparison with mineral fertilizer onbiomass production and essential oil yield. The experiment was done at GlóriaExperimental Farm, of Universidade Federal de Uberlândia, and the oil extraction wasdone at the no Centro de Genética, Biologia Molecular e Fitoquimica of InstitutoAgronômico de Campinas (IAC). The experimental design was randomized blocks withsix treatments (0, 1, 2, 4, 8 kg/m2 of manure and a mineral fertilization with 30g of 4-14-8/m2), with four repetitions. Hydro-distillation was done with a modified Clevengerdistiller for essential oil extraction. Plant height, total and leaf fresh matter and leaf drymatter, per plant and per hectare, were affected as a function of organic fertilizer dose,presenting a significant change with linear adjustment to the doses of manure applied.The two fertilization forms were better than the non-fertilized control for all variables,except for the proportion leaf length and width and oil contents in the leaf dry matter.There was no significant difference for the fresh leaf oil contents between the nonfertilizedcontrol and the mineral fertilization. It can be concluded that common balm isresponsive to organic fertilization with manure and mineral fertilization for biomassproduction; essencial oil yield presented the same contents for al treatments, wichchange was the percentage (%) of some chemical contents. The major contents wereneral, geranial e citronelal.
This document abstract is also available in Portuguese.
Bibliographical Information:

Advisor:Denise Garcia de Santana; José Magno Queiroz Luz; Carlos Ribeiro Rodrigues; Márcia Ortiz Mayo Marques

School:Universidade Federal de Uberlândia

School Location:Brazil

Source Type:Master's Thesis

Keywords:Melissa officinalis Organic fertilizer Mineral Essential oil


Date of Publication:12/21/2007

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