Stratification, Scarification and Application of Phytohormones Promote Dormancy Breaking and Germination of Pelleted Scots Pine (Pinus sylvestris L.) Seeds

Seed quality is an important issue in forestry as it essential parameter the production of high planting material. Many factors may hinder harvesting seeds, including insufficient number sunny days, external conditions temperate climate zones, and fungal pathogens affecting development seedlings. We undertook to develop a procedure maximizing seed protection promoting optimum physiological seedlings by examination impact pelleting (a general method) on germination rates seedling Scots pine (Pinus sylvestris L.). Germination pelleted seeds was examined relation substrate (water vs. soil) LED light spectrum (white red-blue). Several dormancy breaking treatments were applied: stratification/scarification, growth regulator gibberellic acid (GA3), indole-3-acetic (IAA) 1-naphthaleneacetic (NAA), stimulate germination. Experiments included independent tests for each treatment (stratification/scarification plant regulators), combinations both stratification/scarification phytohormone treatments. The impacts these various controlled fluorescence chlorophyll analyzed using maximum efficiency photosystem II photochemistry (Fv/Fm). In addition, b content germinated from quantified high-performance liquid chromatography (HPLC). combined most effective method seeds. are highly likely be photoblastic. best rate, while maintaining optimal parameters, achieved acidic soil (pH 5.0) with white light.