Grey soybean is a high-protein mid-early variety bred by individual selection from a hybrid population. The plants have a height ranging from 82 to 98 cm, featuring gray pubescence on the main stem and lanceolate-obovate side leaflets. The flowers are purple, the seed coat is yellow, and the pod color is light brown. The lower pods are located at a height of 15-17 cm from the soil surface, which facilitates harvest collection. The plants are resistant to lodging and pod cracking, which enhances crop quality and preservation.
The Grey variety is characterized by a high protein content in seeds – up to 46.3%, as well as a fat content of about 17.4%. The vegetative period is approximately 115 days, which allows the variety to be used in various regions with a moderate climate. The average yield of the variety over four years of variety trials reached 2.23 t/ha, which significantly exceeds the indicators of standard high-protein varieties. Under optimal cultivation conditions and in the presence of mineral or bacterial nitrogen in the soil, the variety demonstrates maximum productivity.
Grey is recommended for cultivation in various regions, including the Far Eastern and Lower Volga regions, where it shows stable results in terms of yield and seed quality. The variety has a semi-determinate or indeterminate growth type, which ensures flexibility in agronomy. The high protein and fat content makes this variety attractive for use in the food industry and animal feed production. Due to resistance to adverse factors and high technological characteristics, Grey soybean is a promising choice for agricultural producers.
