Biology of germination of medicinal plant seeds. Part XIXb. Diaspores of Inula helenium L. from Asteraceae family
Morphological features of diaspores and seedlings of Inula helenium L. were described. A four-year cycle of monthly germination analysis was carried out. It was found that accessible light and various temperatures (30°C over 8 hours, 20°C over 16 hours) were optimal for the analysis of Inula helenium fruit germination ability. In these conditions, the percentage of germinated achenes was up to 90%. Diaspores stored in unheated room kept their viability even up to seven years after harvest.