Studi preliminari sulla germinazione di alcune sottospecie di Centaurea aplolepa Moretti (Asteraceae) ai fini della conservazione della biodiversità.

Germination tests of Centaurea aplolepa subsp. carueliana (Micheletti) Dostál, Centaurea aplolepa subsp. cosana (Fiori) Dostál, Centaurea aplolepa subsp. maremmana (Fiori) Dostál, Centaurea aplolepa subsp. subciliata (DC.) Arcang, were made to the maturation of collected achenes, and then assayed in the experimental tests of germination conducted at temperature 25 ° C and 18 ° C, under a photoperiod of 12/12 and in the complete absence of light, distinguishing, where present, clear and dark achenes. For each group were made 3 replicates from 50 individuals. The obtained data were processed and discussed using parameters such as germination capacity and germination rate (T50). The results make it possible to highlight substantial differences between subspecies relation to the ecological conditions and fruit ripening.