PR62A91

Genetic Potential and Protection

The PR62A91 hybrid by Pioneer s.a. is a three-way cross designed for stable yields in demanding phytosanitary conditions. The technical value of this genetics lies in the synergy between high oil content (50–55%) and robust resistance to major sunflower pathogens. Breeders have implemented a complex defensive barrier against Sclerotinia, Downy Mildew, and Phomopsis, effectively minimizing crop loss risks during the ripening phase.

Adaptability and Morphology

A critical characteristic of this hybrid is its flexibility in maturity timing. The adaptable vegetation period (ranging from 90 to 120 days) allows agronomists to tailor planting schedules to local climatic conditions and soil moisture levels. The plants reach a height of 140–160 cm, providing an architecture optimal for mechanical harvesting.

Key Functional Advantages:

• Parasite Control: Genetic resistance to various races of sunflower broomrape enables cultivation on infested fields, reducing reliance on intensive herbicide treatments.
• Crop Structure: The large, convex head shape promotes uniform grain filling and efficient moisture loss, which is vital for maintaining oil quality even during pre-harvest rainfall.
• Three-way Hybrid Type: This genetic architecture ensures high crop uniformity and vigorous early growth, providing a competitive edge over weeds during the critical early development stages.