Ostrozhenko V.Yu., Poleshchuk V.A.
Agrarian newsletter of Primoriye 2018; (9): 54-58
The forests of the Far East are vast. About 70% of their area is occupied by coniferous tree species: Korean pine (Pinus koraiensis Sieb. et Zucc.), Amur larch (Laris amurensis B. Kolesn.), Khingan fir (Abies nephrolepis (Trautv.) Maxim.), Manchurian fir (A. holophylla Maxim.) and Scots pine (Pinus silvestris L.). Scots pine is less common. This is promoted by active felling of pine in the past, its high fire danger and forest fires. High economic importance, biological and ecological features, engagement with selection of coniferous species demand its protection and carrying out active measures for its reproduction. However, seed years in the pine forests of the region are observed in three to four years. With this storage period, seeds reduce germination energy and laboratory germination. The application of growth stimulators can increase sawing quality of seeds. The aim of the research is to study the stimulating effect of aqueous solutions of growth stimulator Phytosont stimulating the germination energy, laboratory germination of seeds and the growth of Scots pine seedlings along the length and weight. The detection of stimulating effect of the growth stimulator Phytosont for seed quality of seeds was carried out in laboratory conditions, according to the requirements of the current GOSTs. Experiments include: 110-3, 1-2-10-3, 1-3-10-3, 1-4-10-3, 1-5-10-3, 1-6-10-3, 1-7-10-3 ml/l and control group - seeds soaked in distilled water. It was established that the concentrations of solutions 1310-3-1510-3 ml/l, at which the germination energy was 69,474,3 %, and the laboratory germination - 86,0-89,0 % are the most effective. The growth of sprouts along the length and mass is most effective at a solution concentration of 1-3-10-3-1-5-10-3 ml/l.
