The Greya soybean variety is a high-protein mid-early variety bred by individual selection from a hybrid population. The plants are indeterminate, of medium height — from 82 to 98 cm, with grey pubescence and light brown pods. The corolla is purple, and the seed coat has a yellow hue. The lower pods, at optimal density, are positioned 15-17 cm above the soil surface, which facilitates harvest collection. The variety is resistant to lodging and pod shattering, which improves yield quality and preservation.
Protein content in the seeds of the Greya variety reaches 46%, and under drought conditions can increase to 47–48%, making it one of the high-protein soy varieties. Oil content is about 18%, while oil content is slightly lower than that of medium-protein varieties, which is characteristic of the lipid-degradative biotype. The mass of 1000 seeds is approximately 149 g. The vegetative period of the variety varies from 108 to 117 days, allowing cultivation in various regions, including the North Caucasus, Lower Volga, and Far East.
The yield of the Greya variety under optimal conditions reaches from 1.75 to 2.93 t/ha, with an average yield of about 2.23 t/ha during variety testing. High yield and resistance to diseases and pests make this variety attractive for agricultural production. Greya soy is suitable for cultivation in regions with various climatic conditions, especially in the Lower Volga region, where it demonstrates stable yield and seed quality indicators.
