Resource assessment of Leucojum aestivum L. (Amaryllidaceae) populations in Bulgaria
Resource assessment of Leucojum aestivum L. (Amaryllidaceae) populations in Bulgaria
Monitoring of 22 populations of Leucojum aestivum L. (Amaryllidaceae) was performed in the period 2001-2004. Analysis of management practices and resource assessment of 16 economically significant localities were made in 2003 and 2004. Population density varied from 7.38±4.10 to 46.37±2.67 ind/m2. Exploitation reserves (from 483 to 52 903 kg) and possible annual harvest were estimated by means of model individuals. Comparison between populations of fresh-mass productivity of individual (7.47±0.40 – 25.43±2.08 g) and galanthamine content (0.9 – 2.6 mg/g average) showed great variability.