Breeding programs and flavour hops in the czech republic

摘要

Hop breeding is based on selections from wild hop populations.This is how the original varieties of hop-growing regions (Saaz, Auscha, Dauba etc.) developed. All Czech hop varieties that have recently been bred have a good brewing value, which is dueto a genetic share of Saaz in their origin. One of the major selection criteria for breeding is hop aroma, which is hoppy in Czech varieties, with a different intensity depending on the content of hop oils. The longstanding breeding tradition has been particularly focused on the selection of mild aroma hops. However, in the recent years some breweries have become increasingly interested in varieties with a specific aroma, which are referred to as "flavour hops". Aromas of flavour hops are non-hoppy, distinctly citrusy, fruity, garlic or floral. As a result, the breeders have started aiming their attention on the selection of hops with a specific aroma.