F1 Mastak — high-yielding parthenocarpic hybrid with female flowering type, providing a prolonged and consistent harvest. Intended for cultivation in spring greenhouses, tunnels, open ground, as well as in the second crop cycle in heated greenhouses (July–October). Exhibits increased shade tolerance and adaptability to environmental conditions. Cucumbers have a beautiful dark green color, warty, white-spiculated, 11–14 cm long; high taste and pickling qualities. 1–2 fruits form per node. Medium branching. Due to strong heterosis (vitality), up to 7–10 cucumbers may simultaneously ripen on one plant. Hybrid is resistant to powdery mildew, olive spot, and common cucumber mosaic virus, and tolerant to false powdery mildew.
Planting density in greenhouses: 2.5 plants/m2; in open ground: 3–4 plants/m2.