SIRTEMA Seed potatoes Sirtema

Seed potatoes

Seed potatoes

Genetic origin: Hl 23a X Frûhmôlle

Breeder (s): JC Dorst – Netherlands

Catalogue registration: 1952

Category: Consumption

Maturity: Very early to early

Descriptive characters

Tuber: Long Short, fairly regular, rather shallow eyes,

yellow skin, flesh yellow.

Sprout: Purplish red, spherical, weak hair.

Plant: fairly low height, spreading habit, leafy type.

Stem: Weak pigmentation, little spoken, straight wings.

Leaf: Clear green, moderately divided, closed; leaflet large,

rounded oval (I = 1.70); Semi-Knocked limb.

Flowering: Few abundant.

Flower: White upper face, purplish red lower face,

partially pigmented flower bud.

Fruit: Rare.

cropping characters and use

Yield: 89% of Bintje.

Grading: Proportion of large tubers: strong.

disease Sensitivity: Leaf blight: susceptible.

Tuber blight: moderately susceptible.

wart: not attacked. Common scab: slightly susceptible.

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

Leaf roll: moderately susceptible.

Nematode ROI -4: RAS

Internal tuber defects: Slightly susceptible to stains

rust, fairly susceptible to hollow heart and moderately sensitive

black spots.

Sensitivity to Pégermage: Rather slightly susceptible.

Dormancy period: Very short.

Culinary quality: for cooking, culinary group B,

blackening after cooking: nil, fry color: NTR

Dry matter content: Low.

Keeping quality. Low

General characteristics

Early variety, productive, very early tuber development, giving large tubers, somewhat round, with eyes sometimes slightly sunken.