Effect of giberellic acid on biomass and artemisinin production by Artemisia annua L. cultivated in the open | Action de giberellines sur la production de biomasse et d'artemisinine par Artemisia annua L. cultivee en champs
1996
Siyapata-Ntakirutimana, E. | Jaziri, M. | Homes, J. (Universite Libre de Bruxelles (Belgium). Lab. de Morphologie et de Biotechnologie Vegetales) | Diallo, B. | Vanhaelen, M.
The effect of gibberellic acid (GA3) treatment on biomass and artemisinin production by Artemisia annua plants grown in field conditions was investigated. Height, branch number and artemisinin equivalent content were studied. An increased biomass was observed with plants treated with 40 and 80 mg per litre of GA3, but no effect on branch number was observed. The artemisinin equivalent content in both leaves and young buds was evaluated by an immunoassay procedure. The results show that the artemisinin equivalent content is not readily correlated with the GA3 concentrations applied. The strongest effect was observed with young buds of plants treated with 80 mg per litre of GA3. Hereby the artemisinin equivalent content was almost twice as high as the control (1.3 and 0.77 per cent dry weight respectively).
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