Sunflower variety Marquis is a medium-late maturing three-striped hybrid, recommended for cultivation in the Volgograd and Orenburg regions, and included in the State Register for the Lower Volga and Ural regions. The plant is characterized by green leaf coloration, yellow ray florets, and medium height. A distinctive feature of the variety is the strongly pronounced marginal bands on the seeds. The vegetative period is 114 days, which allows the hybrid to develop successfully in the specified regions.
The average sunflower yield for Marquis in the Lower Volga region reaches 18.7 centners per hectare, with maximum indicators up to 37.7 c/ha, while in the Ural region the average yield is 13.0 c/ha with a maximum of 23.3 c/ha. The mass of 1000 seeds varies from 55.2 to 57.1 grams. The oil content in the seeds is approximately 49.44%, ensuring a high oil yield — up to 6.1 centners per hectare.
To protect sunflower crops of Marquis from dicot weeds, the use of herbicide Marquis BT is recommended, containing the active substance tribenuron-methyl at a concentration of 750 g/kg. The preparation is released in the form of water-soluble granules and is characterized by high efficiency, environmental safety, and compatibility with other pesticides. The herbicide application rate is 15 liters per hectare for spring barley and 20-25 liters per hectare for winter wheat, with processing recommended in warm and moist weather, and the product is not washed away by rain.
