The influence of pre-sowing treatment of seeds and vegetative plants on yield formation of pea sowing new varieties

The aim of the work is to study the methods of improving sowing qualities and yield properties of original pea seeds through the use of a new biologically active and growth-stimulating drug Relikt P-400 ml / t and systemic fungicidal dressing Redigo PRO, KS-0.45 liters / t on pea seed varieties Rodnik and Pharaoh in soil and climatic conditions of the Orel region. Field experiments were laid on the experimental field of "FSC of Leguminous and Cereal crops" on dark gray forest medium loamy soil, with humus horizon thickness of 25-30 cm. We determined the size of the accounting plot of 7.5 m2 with fourfold repetition and randomized placement. The sowing was carried out at the rate of 1.2 million/ha of germinating seeds. In the field conditions, pea plants were treated during vegetation in the phase of budding - beginning of flowering with Relikt P at a dose of 400 ml/ha. Pea yields were counted in each working plot. The studies were conducted in accordance with the Methodology of state variety testing of agricultural crops (1983). The effect of seed treatments with growth regulator Relikt, P and systemic fungicidal dressing Redigo PRO, KS on new pea varieties Rodnik and Faraon had a positive effect on seed germination. The stimulating effect of the growth regulator Relikt P and the protective effect of the systemic dressing Redigo PRO, KS was revealed, which ultimately contributed to increased yields of both pea varieties. Pharaoh variety showed more active responsiveness to seed treatment with biostimulant Relikt P, a mixture of biostimulant and mordant Relikt P + Redigo PRO, KS and treatment during vegetation with Relikt P in the phase of budding - beginning of flowering compared to Rodnik variety. The yield increase varied between 6.4-36.5%. The Rodnik variety had 4.7-16.0%. Pharaoh variety surpassed Rodnik variety in terms of yield, i.e. in natural-climatic conditions of the Orel region it is able to realize the genetic potential of yield to a greater extent than Rodnik variety.