Interpopulation germination response of Senecio coincyi (Asteraceae) cypselas to various nitrate (KNO3) concentrations

Senecio coincyi (Asteraceae) is a threatened endemic plant of central and north western Spain with a very narrow occurrence. In this study, germination tests under controlled conditions of light and temperature were carried out to evaluate interpopulation variation in the germination patterns of S. coincyi cypselas from 12 populations. The effects of nitrate (1, 5, 10, 25 and 50 mM KNO3) on percentage and rate of germination were also...