Fragaria × vescana

Fragaria x vescana is a Arthybride. The crossing had the aim to combine the properties of both parental species - fruit size and yield of the garden strawberry and the flavor of the wild strawberry.

History

Already in the 1920s were trying to increase in crop yield by polyploidization. In the genus Fragaria Artkreuzungen conducted by Yarnell at Harvard University. He found the first dekaploiden plants among the seedlings from free petal fall a pentaploiden interspecific hybrids of forest and Chile strawberry.

In Germany, Rudolf Bauer led in the 1950s at the Max Planck Institute for Plant Breeding Research in Cologne - Volgelsang Artkreuzungen and polyploidization in several crops by. In the strawberry should the garden be combined with the wild strawberry. The two parental species are indeed interbreed with each other, but the offspring are sterile because the garden strawberry oktoploid and the wild strawberry is diploid. Therefore, it was created with doubled chromosome set as an intermediate step, a hexaploid Arthybride from a garden strawberry and a strawberry month. This hybrid tends to form unreduced female gametes, ova are so hexaploid. From the fertilization with the pollen of the tetraploid garden strawberry result dekaploide plants.

Vescana varieties

The following varieties are from the Swedish breeding program in Balsgård:

• ' Annelie ' (1977 )
• ' Sara ' (1988 ) - ' Annelie ' × [( ' Sparkle ' × F. vesca × 4 ) free petal fall ]
• ' Rebecca ' (1998 ) - ( ' remote ' × F. vesca × 4 ) × F. × ananassa F861502

The following varieties are from the breeding program of Rudolf Bauer in Germany:

• ' Spadeka ' (1977 )
• ' Florika ' (1989 ) - ( ' Sparkle ' × F. vesca ' Semperflorens ' 4x) × ' climbing strawberry Hummi '

Characteristics of Vescana varieties

The plants have on the basis of heterosis on a tight growth with large, dark green foliage. The inflorescences are erect and often above the foliage. Due to the low tillering the individual plant is aging very little, so it can be much older than the garden strawberry. Due to the strong spur formation a good ground cover is achieved quickly.

The fruits are smaller than in the garden strawberry, they are soft fleshy and very aromatic.

Cultivation

The completely different growth type of Vescana hybrids requires a flat mounting system. The cultivated for the commercial cultivation of varieties ' Spadeka ' was pointed like pulled and harvested by machine. The fruits were processed.

The newer cultivar ' Florika ' was tested in plants for -your-own and offered for private gardens. Through the good ground cover and low susceptibility to disease, a plant protection is required.

Evidence

• Fruit plant
• Rose Family
• Rosaceae
• Hybrid