EFFECT OF BIOANTIOXIDANT ON GERMINATION OF AGRICULTURAL SEEDS
The influence of bioantioxidants on the germination of seeds of various crops in the laboratory was studied. An experiment was conducted on seeds of cereal crops: spring soft wheat (Triticum aestivum) and barley-holed (Hordeum vulgare. L), on seeds of perennial leguminous grasses: clover meadow (Trifolium pratense) and lucerne variability (Medicago varia). Salicylic acid (I) (reference preparation) and bis[3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propyl]sulfide (II) were used as bio-antioxidants, control - distilled water, micellar water. Seed processing was carried out based on the consumption of working fluid - 10 liters per 1 ton of seeds. Determined seed quality of seeds - germination energy and laboratory germination. The germination of seeds of agricultural crops, depending on the concentration and effectiveness of the bio-antioxidant, has changed in accordance with the complex bimodal dependence. Seeds of alfalfa changeable were characterized by low seeding qualities and hardness, germination energy was 80%, laboratory viability - 90%. After treatment with a 0,1-1% solution of sulfide II, a decrease in the germination energy by 8±2 (p£0,014) - 30±1(p£0,016) % was observed, by 6±3 (p£0,016) - 28±2 % (p£0,013) of laboratory germination. In the studies of the germination of seeds of barley-holed, the low germination energy and seed germination in the control variant were noted (each 72%). The lowest energy of seed germination was observed in variants using sulfide II (0,1-1%) - 46-60%. The seeds of alfalfa changeable were characterized by low seeding qualities and hardness, in the control variant the energy of germination was 51%, laboratory germination 54%. The increase in the sowing quality of the alfalfa variable seeds was observed after treatment with 0,1-1% sulfide II solution, while the energy of seed germination increased by 15±3 (p£0,027)% and laboratory viability increased by 16±3 (p£0,019) %. The relationship between the structure and inhibitory properties of bio-antioxidants has been established. The effect of sulfide II is based on its ability in the biological membrane to effectively terminate oxidation chains when interacting with peroxy radicals and to destroy hydroperoxides in a molecular way. The efficiency of synergy in the joint presence of sulfide II and a-tocopherol in lipids is up to 50%; sulfide II and phospholipids - up to 25%; sulfide II, a-tocopherol and phospholipids - up to 56%.