Vivaldi

Potato

Variety Description

Varieties used for comparison: 'Yukon Gold' and 'Dali'

Summary: The terminal leaflet of 'Vivaldi' has a wavier margin than the reference varieties. 'Vivaldi' has fewer pairs of primary leaflets than the reference varieties. 'Vivaldi' produces more flowers than the reference varieties which are white while 'Yukon Gold' has red-violet flowers. The tuber flesh of 'Vivaldi' is light yellow in colour while it is medium yellow for 'Dali'. The light sprout of 'Vivaldi' is conical in shape while it is ovoid for 'Yukon Gold' and broad cylindrical for 'Dali'. 'Vivaldi' has red-violet anthocyanin on the light sprout base and no anthocyanin on the tip while 'Dali' has blue-violet anthocyanin at the base and tip.

Description:

'Vivaldi' has a semi-erect growth habit and produces a tall, stem type plant. The stems are medium in thickness and have weak anthocyanin colouration. Stem wings are weakly prominent and straight single. The stem nodes have slight swelling and no anthocyanin. 'Vivaldi' produces a low number of branches.

The leaves of 'Vivaldi' are medium green in colour and have medium pubescence on the lower surface. The leaf silhouette is medium. The leaf rachis has no anthocyanin on the top and bottom. The rachis has very dense pubescence on the top and very weak pubescence on the bottom. The petioles have no anthocyanin and the stipules are medium in size. The terminal leaflets are medium ovate in shape with acute shaped tips and cordate shaped, strongly asymmetrical bases. The margins of the terminal leaflets have medium to strong waviness. 'Vivaldi' has four to five pairs of primary leaflets which are medium in size. They are narrowly ovate in shape with acute shaped tips and cordate shaped, moderately asymmetrical bases.

'Vivaldi' produces a medium number of inflorescences per plant and a medium number of florets per inflorescence. The flower buds have no anthocyanin and are moderately persistent. When fully expanded, the flowers are white in colour. There is no anthocyanin on the inner and outer side of the corolla. The corolla is medium in size with a prominent star. The calyx and peduncle have no anthocyanin colouration. The anthers are orange in colour when the flower is fully expanded and are arranged in a broad shaped cone. The stigma is capitate and medium green in colour.

The tubers of 'Vivaldi' have yellow coloured skin with no secondary colour. Skin texture is smooth and tuber shape is oval. Tuber eyes are shallow in depth, few in number and evenly distributed. The eyebrows are slightly prominent. The tuber flesh is light yellow in colour with no secondary colour. 'Vivaldi' produces a medium number of tubers per plant.

The light sprout of 'Vivaldi' is conical in shape with medium pubescence and medium, red-violet anthocyanin colouration at the base. The light sprout tip habit is moderate between closed and open. The tip has strong pubescence and no anthocyanin. The light sprout has a medium frequency of root initials and medium protrusion of lenticels. The lateral shoots on the light sprout are long in length.

Origin & Breeding History: 'Vivaldi' originated from a cross between TS 77-148 and 'Monalisa', made in Metslawier, The Netherlands in 1985. Selection criteria included yield, quality and disease resistance.

Tests & Trials: Tests and trials for 'Vivaldi' were conducted at Grand Falls, New Brunswick in 2000. A randomized block design was used with four replicates per variety. All entries were planted in single-row plots which were 5.5 metres long. Spacing between adjacent plots was 91 cm and spacing between adjacent hills within the plot was 30.5 cm.

Comparison table for 'Vivaldi' with reference varieties 'Yukon Gold' and 'Dali'

Colour of corolla (RHS)