ECO-PHYSIOLOGICAL ASPECTS OF PARTHENIUM WEED (PARTHENIUM HYSTEROPHORUS L.) MANAGEMENT IN ETHIOPIA

C. Ulrichs, C. Buettner, M. Wiesner, I. Roth, A. Blievernicht, T. Taye, I. Mewis
Parthenium is an exotic invasive weed that originated in tropical America, but now occurs widely in India, Australia, and Africa. In Ethiopia, it is growing in different ecological zones, covering altitudes between 900 and 2500 m above sea level. We analyzed secondary metabolites in Parthenium grown in different regions of Ethiopia. Sesquiterpene lactone (coronopilin and parthenin) contents were high with up to 38 µmol g-1 dry matter in flowers and leafs of Parthenium in all sampling locations. Phenolic acids (vanillic acid, caffeic acid, chlorogenic acid, and three iso-chlorogenic acids) analyzed were higher in flowers than in leafs and roots. However, we could not find significant differences between sampling locations spreading from 912 (semi-arid) to 2225 (humid) m.a.s.l. Rather than elevation plant water status influences amount and profile of secondary metabolites in Parthenium.
Ulrichs, C., Buettner, C., Wiesner, M., Roth, I., Blievernicht, A., Taye, T. and Mewis, I. (2012). ECO-PHYSIOLOGICAL ASPECTS OF PARTHENIUM WEED (PARTHENIUM HYSTEROPHORUS L.) MANAGEMENT IN ETHIOPIA. Acta Hortic. 937, 1173-1181
DOI: 10.17660/ActaHortic.2012.937.147
https://doi.org/10.17660/ActaHortic.2012.937.147
sesquiterpene lactones, phenolic acids, weed, invasiveness, parthenin, coronopilin, chlorogenic acid, vanillic acid, caffeic acid
English

Acta Horticulturae