Short communication. Seed germination of different populations of wild (n=9) Brassica montana and B. oleracea

Abstract

The aim of this work was to evaluate seed germination characteristics of wild populations of Brassica montana (8 accessions) and B. oleracea (30 accessions). Seed germination at 25ºC under a photoperiod of 16-h light/8-h darkness was variable in B. montana (0 to 86%) and more uniform in B. oleracea (73 to 100%). In both species, germination rate (as expressed by mean germination time) varied significantly among populations. A presowing treatment with gibberellic acid only significantly promoted germination in one of 14 populations tested from both species. The results of this study show high intraspecific variation in the germination pattern of seed from different B. montana populations and less variation in populations of B. oleracea.