JAERLA Seed potatoes Jaerla
Genetic origin: Sirtema X MPI 1 9268
Breeder (s): Friese Maatschappij van Landbouw – Netherlands
Catalogue registration: 1971
Tuber: Long Short oblong, fairly regular, quite eyes
superficial, yellow skin pale yellow flesh.
Sprout: Purplish red, slightly colouration, conical, slight hairiness.
Plant: Medium height, semi-spreading habit, leafy type.
Upper: internodes moderately pigmented, very nodes
slightly pigmented, with developed wings, straight.
Leaf: Dark green, little divided, closed; leaflet large, oval
curve (I = 1, 70); limbus plan.
Flowering: Moderately profuse.
Flower: White upper face, purplish red lower face,
partially pigmented flower bud.
cropping characters and use
Yield: 98% of Bintje.
Grading: Proportion of large tubers: high to very strong.
Susceptibility to diseases: Leaf blight: fairly
susceptible. Tuber blight: slightly susceptible.
Wart: not attacked. Common scab: fairly
susceptible. Virus X: NTR Virus A: resistant.
Virus Y: moderately susceptible. Leaf roll: fairly susceptible.
Nematode ROI -4: RAS
Internal tuber defects: Slightly susceptible to stains
rust, moderately susceptible to hollow heart,
black spots: NTR
Sensitivity to sprouting: susceptible.
Dormancy period: Short.
Culinary quality: on cooking, culinary group B,
blackening after cooking: nil, fry color: NTR
Dry matter content:. Very low
Keeping quality. Low
Early variety, productive, giving large tubers sometimes form very regular and very marked eyes.