Effects of seedbed preparation on their germination
In order to encourage mass seed germination and increase field germination, different ways of seedbed preparation are employed to overcome deep and induced seed dormancy. The action effectiveness depends on the species and biological characteristics of seeds, the dormancy type and the thoroughness in adherence to the preparation conditions. Some investigation results of seedbed treatment of Scots pine, American arborvitae and Biota orientalis have been revealed. The treatment was carried out in the climatic chamber BINDEP MKF- 240 made in Germany. The first-year maturity certified seeds were selected for the tests. After the treatment in the climatic chamber, the seed lots were weighed and compared to the control lot weight (raw seeds). Two series of experiments under different temperature and humidity conditions were conducted. The results demonstrated that thermal treatment not only accelerates, but also delays germination. A series of experiments are going to be continued