Zharkikh O.A., Trukhachev V.I., Efanova E.M., Sushkova L.O., Belopukhov S.L.

The effect of short peptides on the growth and development of barley seedlings

The use of peptide preparations is one of the current trends in modern agriculture. These preparations can be used at the stage of seed germination, which is an effective strategy for increasing the dynamics of growth and successful development of plants. The article presents the results of laboratory experiments aimed at studying the effect of a complex of short peptides AC-5 (aspartic acid, glutamic acid, arginine) on the germination of spring barley seeds (Hordeum vulgare L.) - Vladimir variety and the intensity of their germination. The maximum values of germination energy (95%, 71% at the control) and seed germination (99%, 82% at the control) were obtained in variants with seed treatment with a complex of short peptides at concentrations of 1*10-12 and 1*10-13 g/l, the minimum – in variants with seed treatment at concentrations of 1*10-8 g/l. To determine the effective concentration of short peptides that cause the greatest growth-stimulating effect, morphometric characteristics of barley seedlings (length of roots and sprouts, yield of raw biomass, dry mass of sprouts and dry mass of roots) were studied. According to the totality of the maximum values, the optimal concentration of a complex of short peptides for pre–sowing treatment of spring barley seeds of the Vladimir variety is 1*10-13 g/l.

Keywords: SPRING BARLEY, A COMPLEX OF SHORT PEPTIDES, SEED GERMINATION, GERMINATION ENERGY, LABORATORY EXPERIENCE