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Imprint
Generation of homozygous lines of caraway (Carum carvi) with high yield efficiency as prerequisite for synthetic varieties
Project
Project code: JKI-ZGO-08-4149
Contract period: 01.06.2012
- 30.09.2020
Purpose of research: Applied research
Several years ago for caraway (Carum carvi) it became possible to add an annual production system to the traditional biennial ones. With this new system harvest takes place already in the year of sowing with an annual contribution to profit and higher flexibility in rural land use and volume of production. The protection of a first annual variety was prerequisite for this. For further improvement by breeding the necessary pool of varieties is not available. From this creating a gene pool with new variability is of essential importance. For this purpose following characters are of special interest: seed yield as well as amount and combination of essential oil according to Pharmacopoea Europaea (Ph. Eur. 7. Edition) and German Pharmacopoeia (DAB 2011). For generation of new variability in annual caraway, biennial varieties and accessions rich in essential oil and with high seed yield were crossed with cultivar 'Sprinter'. The progenies were selected for annuality. The nearly homozygous lines have to be characterized for their yield of seeds and essential oil in extensive tests in the experimental field. These tests will describe for the first time the potential inbreeding depression in species caraway. For selected lines of summer annual caraway (Carum carvi) we were successful in developing two inbred generations each. For this seeds from self pollinations were produced by isolation of the main umbel with a perforated plastic bag. The surrounding free pollinated umbels were harvested separately. For the seeds of these umbels the amount and combination of the essential oil was measured. The method of near infrared spectroscopy (NIR) was used for the characterization. As reference test method distillation according to pharmacopoeia was used with gas chromatographic analysis of the essential fruit oils. Based on amount of essential oil high-performance single plants were selected and self pollinated again. In this way all in all 30 lines could be enhanced for level of homozygosity and amount of essential oil.
Section overview
Subjects
- Plant Breeding
- Horticulture
- Specialised crops
Framework programme
Funding programme
Excutive institution
Institute for Breeding Research on Horticultural Crops (JKI-ZG)
