The effects of different plant densities on yield, yield components and quality of Artemisia annua L. ecotypes

This study was conducted between 1997 and 1998 at Çukurova University, Faculty of Agriculture to determine the effects of different plant densities (5, 10, 15, 20, 25 and 30 plants/m2) on yield and yield components and quality of Artemisia annua L. ecotypes (Adana, Samankaya and Serinyol from Turkey). In the study, the plant height (cm), fresh weight (kg/da), dry weight (kg/da), dry leaf weight (kg/da), essential oil content (%), essential oil yield (1/da), artemisinin content (%), and artemisinin yield (kg/da) of ecotypes were investigated. The results of this study showed that the highest essential oil content and the highest essential oil yield were found in the Samankaya ecotype when planted at 15 plants/m2. However, the highest artemisinin content and highest artemisinin yield were found in the Serinyol ecotype when planted at 15 plants/m2. © 2002 by The Haworth Press, Inc. All rights reserved