Search

Drying of pulpwood bolts of Scots pine ( L.), birch ( spp.) and Norway spruce ( (L.) H. Karst.) was studied by measuring the drying of sample bolts placed in experimental piles. The results revealed that the main factors affecting timber drying are debarked surface area, moisture content at the time of felling and the size of the bolt. Furthermore, pine and spruce bolts located in the upper part of the pile dry better than bolts near the ground.Pinus sylvestrisBetulaPicea abies

Soft X-ray radiation (Grenz rays) has been used in the X-ray radiography of seeds. It is based on the principle that the different parts of the seed absorb X-rays to a slightly varying extent. Empty seeds and empty regions in the seeds appears as dark areas on the film. X-ray radiography without staining and X-ray contrast radiography were compared to study the stored seeds of Scots pine ( L.). The results were compared with the results of germination in a Jacobsen germinator according to ISTA norms.Pinus sylvestris