Changes of Seed Germination During the Year

摘要

Each plant species (cultivars) has typical germination season to optimise successful reproduction and survival. The reasons of this biological phenomenon are known, but during the year there is something like biological clock, because of the existenceof the influence on the level of seed germination exists. This physiological phenomenon has large influence on rapidity of germination and on the germinability. The eight species of crops were tested in laboratory experiments in order to analysis of changes rapidity of germination and germinability during the year.The four repetitions in every type of test were provided. Sowing of one hundred of seeds of every species in every repetition was provided. Germinability was analysed in Petri dishes with filter paper. Petri dishes were located in climatic chamber with the standard temperature 21 deg C. Regularly humidification of filter paper with spirituous water was provided.