Articles
YIELD AND COMPOSITION OF ESSENTIAL OIL OF PELARGONIUM GRAVEOLENS L. IN DIFFERENTS FORMS OF CULTIVATION AND FERTILIZATIONS
Article number
1098_13
Pages
125 – 135
Language
English
Abstract
The objective of this study was to evaluate the production of Pelargonium graveolens L. in different cropping systems and fertilizers. Geranium is an aromatic plant, originally from South Africa, with therapeutic power to combat menopausal problems, nervous tension and anxiety.
With the increasing demand on the use of medicinal plants, it became necessary to establish agronomic techniques of cultivation, in order to supply the market with quality plant material, since their levels of essential oils can be affected by way of cultivation.
The greenhouse allows control of environmental conditions and strengthens the concepts of quality.
The experimental design was randomized blocks factorial 2×2, with 6 repetitions and two cropping systems (greenhouse and field) at 2 fertilizations (mineral and organic). Fertilization consisted by formulated fertilizers and animal waste.
Were evaluated plant height, fresh and dry weight, content, yield and essential oil composition.
The higher biomass and greater heights of plants were found in the greenhouse using organic fertilizer.
Regarding the production of essential oil content and yield did not differ among treatments.
The monoterpene geraniol, citronellol, linalool and iso-menthone presented as a majority in all treatments, averaging 40-53%, 17.5 to 22%, 9-12%, 6-13%, respectively.
The environmental conditions of the greenhouse associated with organic fertilization showed higher biomass of geranium, but growing in field assured to higher rates of geraniol.
With the increasing demand on the use of medicinal plants, it became necessary to establish agronomic techniques of cultivation, in order to supply the market with quality plant material, since their levels of essential oils can be affected by way of cultivation.
The greenhouse allows control of environmental conditions and strengthens the concepts of quality.
The experimental design was randomized blocks factorial 2×2, with 6 repetitions and two cropping systems (greenhouse and field) at 2 fertilizations (mineral and organic). Fertilization consisted by formulated fertilizers and animal waste.
Were evaluated plant height, fresh and dry weight, content, yield and essential oil composition.
The higher biomass and greater heights of plants were found in the greenhouse using organic fertilizer.
Regarding the production of essential oil content and yield did not differ among treatments.
The monoterpene geraniol, citronellol, linalool and iso-menthone presented as a majority in all treatments, averaging 40-53%, 17.5 to 22%, 9-12%, 6-13%, respectively.
The environmental conditions of the greenhouse associated with organic fertilization showed higher biomass of geranium, but growing in field assured to higher rates of geraniol.
Authors
P.G. Rabelo, J.M.Q. Luz, S.M. Silva, A.F. Blank, P.B. Alves, K. Monteiro, E.G. Fabre
Keywords
geranium, protected cultivation, organic fertilizer, geraniol
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