SIRTEMA Seed potatoes Sirtema
Genetic origin: Hl 23a X Frûhmôlle
Breeder (s): JC Dorst – Netherlands
Catalogue registration: 1952
Maturity: Very early to early
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.
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
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
Early variety, productive, very early tuber development, giving large tubers, somewhat round, with eyes sometimes slightly sunken.