BELLE DE FONTENAY Seed potatoes Belle de Fontenay
Genetic origin: Unknown, an old French variety
Breeder (s): Unknown
Catalogue registration: 1935
Category: flesh consumption farm
Maturity: Very early
Tuber: claviforme very regular, very shallow eyes,
yellow skin, dark yellow flesh.
Germ : Purple, conical, medium hairiness.
Plant: Medium height, semi-upright habit, branching type.
Upper: Entrenceuds nodes moderately pigmented, nodes slightly
pigmented, with wings slightly pronounced, straight and wavy.
Leaf: Dark green, glossy, moderately divided, half-opened;
small leaflet, rounded oval (I = 1.61); Semi-Knocked limb.
Flowering: Quite rare.
Flower: Blue white tip, bud partially
Fruit: Very rare.
cropping characters and use
Yield: 70% of Bintje.
Grading: Proportion of large tubers: fairly low.
Susceptibility to diseases: Leaf blight: susceptible.
Tuber blight: very susceptible. Wart: not
attacked. Common scab: slightly susceptible.
Virus X: NTR Virus A: resistant. Virus Y: susceptible.
Leaf roll: susceptible. Nematode ROI -4: RAS
Internal tuber defects: Slightly susceptible to
stains. Rust, hollow heart and black spots
sensitivity to sprouting: susceptible.
Dormancy period: Average.
Culinary quality: good for cooking,
group Culinary A, blackening after cooking: nil; colouration
Dry matter content: Fairly low
Keeping quality: very low.
Variety whose low productivity and susceptibility to certain diseases are largely offset by precocity and very good culinary quality.