Biology of germination of medicinal plant seeds. Part XIXb. Diaspores of Inula helenium L. from Asteraceae family

ELŻBIETA BILIŃSKA, WALDEMAR BUCHWALD

Abstract

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.
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