Vigorous early maturity plant type with medium fine beads, Widely adaptable variety performing well under both cool and warm growing areas, Rock F1 is suitable for use in both fresh and processing industries, Recommended standard spacing: 60 * 45 cm in warmer areas and 60* 60 cm for cool humid areas, Plant features: Dome shaped with quality uniform heads, Medium maturity in 75 days after transplanting, Intermediate tolerance to Downy mildew, Average head size: 650 – 1000gm, Yield potential: 8-9 tons/acre, Suitable for year round production