Abstract
The relationship between the conservation of plant genetic resources and their culture history is intimate. Consequently, biodiversity research must also take into account historical and cultural factors. An inventory of plants collected from all over Sweden was made with the aim of establishing a national Swedish gene bank for once cultivated hop. Only female hop, which could be regarded as cultivated hop on the basis of history, were selected. In this study, two different inventory methods were used: one based on plant habitat and the other involving the use of historical documents, primarily large-scale maps from the first half of the seventeenth century, used to locate their cultivars today. The documented history of the hop, combined with its biology, is the basis for the methods used. Hop is the only Swedish crop that according to a 1442 law had to be cultivated. The law lasted for over 400 years. Since the hop is a perennial, dioecious plant and only female individuals are cultivated, over time very few genetic recombination events are expected. Today, it is possible to connect and identify living plants using historical documents. The degree of connection between today’s living plants and the historical evidence for hop cultivation differ between the two methods.
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Acknowledgments
This work was funded by Formas, the Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning and the Royal Swedish Academy of Agriculture and Forestry. The large-scale maps are scanned by the project “National edition of the oldest geometrical maps” at National Archives, financed by The Royal Academy of Letters and The Bank of Sweden Tercentenary Foundation.
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Strese, EM.K., Karsvall, O. & Tollin, C. Inventory methods for finding historically cultivated hop (Humulus lupulus L.) in Sweden. Genet Resour Crop Evol 57, 219–227 (2010). https://doi.org/10.1007/s10722-009-9464-9
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DOI: https://doi.org/10.1007/s10722-009-9464-9