The UH6303 is a three-way white maize hybrid renowned for its exceptional yield potential, capable of producing 8 to 9 tonnes per hectare when planted at a density of 50,000 to 55,000 plants per hectare. Under optimal conditions, this hybrid can yield up to 19 tonnes. It is a late-maturing variety, reaching physiological maturity within 100 to 120 days, depending on the altitude.