African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

Fatty acid composition of Camelina sativa as affected by combined nitrogen and sulphur fertilisation

Markéta ŠÍPALOVÁ1*, Tomáš LOŠÁK2, Jaroslav HLUŠEK2, Johann VOLLMANN3, Jozef HUDEC4, Radek FILIPÄŒÍK5, Michal MACEK1 and Stanislav KRÁÄŒMAR1  
1Department of Food Analysis and Chemistry, Tomas Bata University in Zlin, Czech Republic. 2Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Mendel University in Brno, Czech Republic. 3Department of Crop Sciences, BOKU-University of Natural Resources and Life Sciences Vienna, Austria. 4Department of Agrochemistry and Plant Nutrition, Slovak University of Agriculture in Nitra Slovakia. 5Department of Animal Breeding, Mendel University in Brno, Czech Republic.
Email: [email protected]

  •  Accepted: 02 August 2011
  •  Published: 18 August 2011

Abstract

Camelina (false flax) oil is an important source of linolenic acid (C18:3). As agronomic treatments such as fertilization may affect seed quality parameters in oilseeds, fatty acid composition and oil content ofCamelina sativa were investigated as affected by the combined application of nitrogen and sulphur in pot experiments. Nitrogen was applied as NH4NO3 at rates of 0.6 (N1), 0.9 (N2) or 1.2 (N3) g per pot. To increase the natural soil S-SO42- level of 25 mg/kg (S0) to 35 mg/kg (S1), 45 mg/kg (S2) and 55 mg/kg (S3) were supplied as (NH4)2SO4. Results of this study show that seed oil content ranged from 37.01 to 41.23% of seed dry matter, and oil content was significantly reduced by N fertilizer application. The contents of palmitic acid (range 6.9 to 11.0%), oleic acid (range 12.8 to 16.3%) as well as arachidic and 11, 13–icosadienoic acids were also affected by fertilisation, whereas variations in linolenic acid content were not significantly influenced by the fertilizer treatments applied.

 

Key words: Nitrogen, sulphur, fertilizer, Camelina sativa, seed, fatty acid, GC-FID.