RUBIS Seed potatoes Rubis

Seed potatoes

Seed potatoes

Genetic origin: Roseval X INRA 71

Breeder (s): Britons Federation of Trade Unions – France

Catalogue registration: 1993

Category: Consumption

Maturity: Medium-early

Descriptive characters

Tuber: Long oval, regular, very shallow eyes,

red skin, pale yellow flesh .

Sprout: Purplish red, cylindrical, very strong hair.

Plant: Medium height, semi-upright habit, leafy type.

Stem: Weak pigmentation, with narrow, straight wings.

Leaf: Clear green, matt, moderately divided, half-opened;

leaflet average, elongated oval (I = 1, 90); limbus plan.

Flowering: Moderately profuse.

Flower: Purplish red, partially pigmented flower bud.

Fruit: Moderately abundant.

cropping characters and use

Yield: 92% of Bintje.

Grading: Proportion of large tubers: high.

disease Sensitivity: Mildew foliage: fairly susceptible.

Tuber blight: moderately susceptible.

wart: sensitive. Common scab: moderately

susceptible. Virus X: NTR Virus A: NTR Virus Y: fairly susceptible.

Leaf roll: moderately susceptible.

NématodeROl-4: RAS

Internal tuber defects: Fairly susceptible to

stains. Rust, slightly susceptible to hollow heart and black spots

Sensitivity to sprouting: Moderately susceptible.

Dormancy period: Fairly short.

Culinary quality: Fairly good to good for cooking,

culinary group B, slight blackening after cooking, colouration

fry: RAS

Dry matter content:. Low

Keeping quality : Avg.

General characters

mid-early variety, giving large tubers with red skin, regular shape.