As Zufallssämlinge refers to plant varieties that are not deliberately bred were, but have emerged as descendants accidentally discovered plant populations with desirable properties. They are discovered by breeders or gardeners who recognize the value of a seedling and then propagate it and use it for their breeding. Even for laypeople, the advantages of a discovered new variety are easily recognizable if it has tasty fruits or particularly beautiful flowers. Additional traits can prove useful in the course of further breeding.
Since many types of fruit are heterozygous clones , free crossing results in very different offspring, which can only be selected through a very lengthy and unprofitable process, which is why this has only happened and is done by a few state institutes or enthusiasts. Therefore, to this day, random seedlings that are found somewhere, often in gardens or on the roadside, play a role in the creation of new types of fruit. The comparatively new Braeburn apple variety was found by a fruit grower in New Zealand on the roadside in 1952 . The apple variety Golden Delicious , for many laypeople the epitome of a highly cultivated mass apple variety , was discovered around 1890 as a chance seedling in a garden.
In the case of roses , a random seedling plays a major role in rose history. The first occidental tea roses emerged from noiseet roses and Rosa gigantea, but their sterility made them unsuitable for further breeding - until the chance seedling "Devoniensis" finally made further breeding possible.
There are a large number of random seedlings, both in the perennials and summer flowers and in woody plants , for example:
- Phlox "Blue Paradise"
- Pelargonium "P. Mabel Gray "
- Betula pendula "Dalecarlica"
- Some of the most popular apple varieties such as Boskop , Braeburn , Golden Delicious, and Granny Smith are random seedlings.
- ^ Herbert Petzold : Apple varieties . Neumann Verlag, Radebeul 1990, ISBN 3-7402-0075-8 , p. 15f.
- ^ Franz Mühl: Old and new apple varieties . Fruit and horticultural publisher of the Bavarian State Association for Horticulture and Landscape Care e. V., 1991, ISBN 3-87596-093-9 , p. 24.
- ^ Herbert Petzold: Apple varieties . Neumann Verlag, Radebeul 1990, ISBN 3-7402-0075-8 , p. 110.