INFLUENCE OF PRESOWING TREATMENT OF BARLEY SEEDS WITH PLANT GROWTH REGULATORS ON PHYTOSANITARY STATE OF SEEDS AND SOIL
The positive influence of presowing treatment of spring barley seeds with plant growth regulators has been established under conditions of Central Yakutia. It is shown that this technique improves the phytosanitary state of seed grain and harvest grain and decreases population of root rot causative agent in soil. Albit suppresses the pathogenic flora most effectively after both presowing seed treatment and harvest grain treatment. Sowing qualities are improved after application of Novosil, with that laboratory germination of barley increases by 8.3%, of harvest grain seeds by 13.2%. In soil under barley, the density of Bipolaris sorokiniana conidia decreases 2.9 times as compared with the control, when growing seeds treated with Albit, and 2.7 times, when used Novosil.