Frigo plants
Under Frigo plants refers to a particular form of processing plants that the plant propagation are intended. Frequent forms of application are strawberry frigo plants. This type of seedling is intended for spring planting (April to July), while strawberry green plants are planted in late summer. The frigo plants are particularly suitable for future crops .
The strawberry frigo plant is a normal strawberry plant which, as the name "frigo" suggests, is frozen. It is cleared in the cold months of the year (between late November and February) and kept in an artificial winter by being stored at −1 to −2 ° C. The frigo plants are trimmed down to a few leaves . For the most part, they only consist of the rhizome and the roots . Frigo plants have the advantage over green plants that they can be stored and transported easily. In addition, planting is possible at any time. Allotment gardeners who missed the planting in autumn can use frigo plants to plant their seedlings in April and harvest strawberries in the same year.
background
The meaning behind this system is as follows: the plant forms the flower arrangements for the next harvest in the autumn before clearing. Storage in frost is nothing more than prolonging the winter. If now these plants z. B. be planted in May, at temperatures of more than 15 degrees, you can control exactly when the next harvest should start. Harvesting of the strawberry plants begins almost exactly seven to eight weeks after planting, depending on the planting date and variety. It is therefore possible to extend the normal strawberry harvest, which lasts from mid-May to mid-July, with the help of this system. B. plant frigos every two weeks. To elaborate on this example: The strawberries planted in mid-May are harvested around the beginning / mid-July, i.e. exactly when the normal harvest is slowly waning and prices are often rising.
A large part of the frigo plants in Germany is not used for a date culture, but as a substitute for green plants. The yield of green plants at the beginning of August is low compared to frigo plants, so green plants are more expensive. In addition, frigo plants are less problematic to grow.
Waiting bed plants
In addition to strong (A +) frigo plants, waiting bed plants are often used to create a strawberry appointment culture. Waiting bed plants are produced by clearing green plants in August and planting them in a separate field, the "waiting bed". There they are cultivated until winter and then cleared and stored similar to frigo plants. The yield potential of waiting bed plants is significantly greater, but these plants are also significantly more expensive.
Historical
Frigo plants are a type of propagation that grows in the warm winter areas of the USA, e.g. B. California , was developed. Here the winter months are usually so warm that the number of hours with temperatures between 0 and +7 ° C is not sufficient to break the hibernation ( vernalization ). The plant growth lagged behind the normal growth. So a method was developed to "fool" the plants into a longer and cold winter.
swell
- ↑ W. Dierend (Ed.): Erdbeeranbau . Ulm Stuttgart 2012, ISBN 978-3-8001-5982-6 , p. 54.
- ↑ W. Dierend (Ed.): Erdbeeranbau . Ulmer Stuttgart 2012, ISBN 978-3-8001-5982-6 , pp. 54-55.
- ↑ W. Dierend (Ed.): Erdbeeranbau . Ulmer Stuttgart 2012, ISBN 978-3-8001-5982-6 , pp. 107-109.
- ↑ W.-D. Naumann, D. Seipp: Strawberries: Basics for cultivation and marketing . Ulm Stuttgart 1989, ISBN 3-8001-5531-1 , p. 101.
- ↑ W. Dierend (Ed.): Erdbeeranbau . Ulm Stuttgart 2012, ISBN 978-3-8001-5982-6 , p. 57.
- ↑ W.-D. Naumann, D. Seipp: Strawberries: Basics for cultivation and marketing . Ulm Stuttgart 1989, ISBN 3-8001-5531-1 , p. 108.