JONAS

Jonas is a medium late top-performing starch variety with a very high yield. Through its rapid youth development and its late maturity, Jonas delivers consistently high starch yields. It shows high resistance to Pa 2 (9) and Pa 3 (8). Additionally, it has good resistances to PVY, phytophthora and rhizoctonia.

Tuber characteristics
 

• Tuber shape: Round, Round oval
• Flesh color: White
• Eye depth: Medium, Deep
• Skin color: Yellow
• Skin characteristic: Rough

Tuber Characteristics
 

• Nematodes: Ro 1, Pa 2 (8), Pa 3 (8)
• Leaf blight: High
• Tuber blight: High
• Rhizoctonia: High
• Black leg: Medium, High
• Common scab: Medium, High
• Internal rust spot: Medium
• Second growth: Medium, High
• Damages: Medium
• Bruising: Low, Medium
• PVY: Very high

Yield and quality
 

• Market outlet: Starch
• Yield: Very high
• Share oversize: Medium
• Share undersize: Low
• Dry matter content: High
• Dry matter yield: Very high