Illustrated variety description

Spunta

Genetic origin : Béa X U.S.D.A. 96-56
Breeder(s) : J. OLDENBURGER - (PAYS BAS)
Registered in the : Catalogue français (1967)
Type : Liste A
Category : Consommation
Maturity : Medium-early

Descriptive characters

Tuber : Long oval, regular, very shallow eyes, yellow skin, yellow flesh.

Sprout : Purple, conical, medium hairiness.

Plant : Tall, upright habit, branching type.

Stem : Internodes slightly pigmented, nodes not pigmented, with developed wings, straight and wavy.

Leaf : Clear green, little divided, half-opened; medium-sized leaflet, round oval (I = 1.61); blistered lamina.

Flowering : Fairly abundant.

Flower : White, partially pigmented flower bud.

Fruit : Very rare.

Growing and use-related characters

Yield : 111 % of Bintje.

Grading : Proportion of large tubers: very high.

Susceptibility to diseases :
Leaf blight : moderately susceptible.
Tuber blight : moderately susceptible.
Black wart : not attacked.
Common scab : fairly susceptible.
Virus X : NTR.
Virus A : resistant.
Virus Y : rather slightly susceptible.
Leaf roll : susceptible.
Nematode RO 1-4 : NTR.

Internal tuber defect : Rather slightly susceptible to rust spots, moderately susceptible to hollow heart, black spots: NTR.

Susceptibility to desprouting : Fairly susceptible.

Dormancy period : Medium.

Culinary quality : Table-use group B, very slight blackening after cooking, fry colour: NTR.

Dry matter content : Very low.

Keeping quality : Fairly poor.

General characters

Vigorous and very productive variety, with relatively early tuber development,

giving large regular tubers, of long shape, but with low dry matter content.