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New Zealand Journal of Crop and Horticultural Science abstracts


Comparison of fructose production by 37 cultivars
of Jerusalem artichoke (Helianthus tuberosus L.)


M. BEN CHEKROUN*
J. AMZILE*
A. MOKHTARI
N. E. EL HALOUI

Biology Laboratory
Ibn Tofail University
School of Sciences
14000, Kenitra, Morocco

J. PREVOST
R. FONTANILLAS

Laboratory of Plant Ecology
School of Sciences
123 Albert Thomas
87100, Limoges, France

*Present address: Biology Laboratory, Chouaïb Doukkali University, School of Sciences & Technic, BP 577 Settat, Morocco.

Abstract  Improved culture of Jerusalem artichoke (Helianthus tuberosus L.) for the better production of fructose requires better performing cultivars. Analysis involving 37 cultivars originating from France or overseas showed that among the early cultivars studied, `Grando' appear to be the richest with 193 mg/g fresh wt of dry matter (DM) and 508 mg/g DM of fructose (as fructan). For fructose production, among the late white cultivars analysed, `Kharkov' gave the best performance with 179 mg/g fresh wt of DM, 531 mg/g DM of fructose, and 710 mg/g DM of total carbohydrates. The French cultivars `Miello', `Dub', and `Rico' are considered in their group as the most productive with 549, 545, and 540 mg/g DM of fructose, respectively.

Keywords  Jerusalem artichoke; Helianthus tuberosus L.; fructose; fructan; cultivar; early; late

Résumé  La rentabilisation de la culture de Topinambour (Helianthus tuberosus L.) pour la production de fructose nécessite le choix de variétés très performantes. Pour cela, une analyse réalisée sur 37 cultivars d'origine, Française ou étrangère a montré que: Parmi les cultivars précoces étudiés, `Grando' s'avère le plus riche avec 193 mg/g matière fraîche (MF) de matière sèche (MS) et 508 mg/g MS de fructose. Pour la production de fructose, parmi les cultivars blancs tardifs analysés, le `Kharkov' présente le plus d'intérêt avec 179 mg/g MF de MS, 531 mg/g MS de fructose et 710 mg/g MS de glucides totaux. Les cultivars Français `Meillo', `Dubo' et `Rico' sont considérés dans leur groupe comme étant les plus productifs avec respectivement 549, 545 et 540 mg/g MS de fructose.

Mots-clés  Topinambour; Helianthus tuberosus L.; Fructose; Fructosane; Précoce; Tardif

New Zealand Journal of Crop and Horticultural Science, 1996, Vol. 24: 115-120

0114-0671/96/2401-0115 $2.50/0 (c) The Royal Society of New Zealand 1996

Short communication

PDF file of entire paper: medium quality (366K); (scanned from paper original: notes about this process)


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