Helianthus tuberosus

The phenolic and related components present in stems and leaves of sunflower, Helianthus annuus L., and Jerusalem artichoke, Helianthus tuberosus L., were extracted sequentially and their activity as phytotoxic agents evaluated. Total acids and neutral compounds were isolated by extraction with methanol, acetone, and water. The free acids and neutral compounds were partitioned into the organic phase, whereas the acids, present as esters and aglycones, were liberated by subsequent alkaline hydrolysis of the aqueous phase. 

Table II. Helianthus tuberosus. The Effect of the Fractions on Growth Inhibition of L. minor. Dry Weight as a Percentage of the Control after 7 Days Exposure...

Table VIII. Helianthus tuberosus. Description of Fronds after 7 Days Exposure...

Biology and Chemistry of Jerusalem Artichoke Helianthus tuberosus L. 

Fermeren, N.O., [List of publications on Jerusalem artichoke (Helianthus tuberosus L.)], Inst. Plant Industry, Leningrad Library, Bibl. Contr., No. 1, 1932. 

Le Cochec, F., Les clones de Topinambour (Helianthus tuberosus L.), caracteres et methode d amelioration, in Topinambour (Jerusalem Artichoke), Gosse, G. and Grassi, G., Eds., European Commission Report 13405, Commission of the European Communities (CEC), Luxembourg, 1988, pp. 23-25. 

Rudorf, W., Topinambur, Helianthus tuberosus L., Handbuch der Pflanzenziichtung, 3, 327-341, 1958. 

A diverse assortment of Latin and common names have been ascribed to Helianthus tuberosus since its introduction into Europe, making its history and outward dispersal from the New World difficult to trace. Linne assigned the current Latin binomial (II. tuberosus L.) for the species in 1753. Today his system of classification is universally accepted, though it was not uniformly welcomed at that time. This sentiment is evident in the following comment by Brookes, published in 1763 ... 

Helianthum tuberosum esculentum Helianthus radice tuberosa Helianthus tomentosus Helianthus tuberosus Helianthus tuberosus var. subcanescens Heliotropium Indicum tuberosum Heliotropum Indicum tuberosum Herba solis tuberosa Herba solis tuberosa radice Hierusalem artichoke Honderthoofden... 

Current Common Names for Helianthus tuberosus L. in Various Languages... 

Bauer, H.A., El Cultivo del Topinambur (Helianthus tuberosus L.), Estacion Experimental Agropecuraria Manfredi, Argentina, 1974. 

Dieck, E., Ueber die Kohlenhydrate der Topinambur-Knollen (Helianthus tuberosus L.), in Chemischer und Landwirthschaftlicher Beziehung, Dieterichschen Univ.-Buchdr., W.J. Kastner, Gottingen, Germany, 1878. 

Grothus, R., Fruktanspeicherung bei Topinambur (Helianthus tuberosus L.) unter dem Einfluss variierter Kalium- und Wasserversorgung, 1990. 

Kiippers, G.A., Successful planting of Helianthus tuberosus L., Die Pharmazie, 1, 256-259, 1952b. 

Sprague, H.B., Farris, N.F., and Colby, W.G., The effect of soil conditions and treatment on yields of tubers and sugar from the American artichoke (Helianthus tuberosus), J. Am. Soc. Agron., 27, 392-399,1935. 

Wein, K., Die einfuhrungsgeschichte von Helianthus tuberosus L., Genet. Resour. Crop Evol., 11,41-91, 1963. 

Wettstein, W. von, Uber die Ziichtung von Helianthus tuberosus (Topinambur), Ziichter, 10, 9-14, 1938. 

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