STYRIAN GOLDING B (BOBEK)
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PEDIGREE |
A diploid hybrid between Northern Brewer and TG seedling of unknown origin |
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PICKABILITY |
Good |
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YIELD |
1300 to 3500 kg/ha |
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STORAGE STABILITY |
Good
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RIPENING TIME |
Medium late |
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OTHER INFORMATION: |
Released in 1979, an aroma hop variety with high yield |
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RESISTANCE TO DISEASE: |
- To downy mildew - Medium
- Rootstock to downy mildew - Weak
- To powdery mildew - Good
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BREWING QUALITY
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Aroma hop variety of high quality with excellent bitterness and aroma |
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BREEDING PROPERTIES |
Bobek is a diploid hybrid between Northern Brewer and TG seedling of unknown
origin. It is a medium late variety, its optimal picking time in Slovenia being
between August 28 and September 5. The plants have form of a dense cylinder or
basket, thin and markedly branched lateral shoots, with characteristically short
internodes, so that the bloom set can be well over the average. The vines are
thin, rough, of green - purple - grayish color. The leaves are small, of deep
green color, with typically dense venation. The rootstock is susceptible to
downy mildew, the leaves are resistant, the cones slightly susceptible. The
expected yield is about 3500 kg/ha. It has a well developed root system. It is
grown on moderately deep and deep clay soil. It is grown in Slovenia. Large
planting distance is required. The recommended pruning time in Slovenia is
between April 1 and 10. An average cone is 20 mm long, the average weight of 100
dry cones is 12 g. They are small, of round shape, dense, of green color and do
not get shattered when picked by picking machine. The drying temperature does not exceed
65 C.
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CHARACTERISTICAL INGREDIENTS AND BREWING QUALITY |
Bobek has an intense and pleasant hoppy aroma. It contains
2.5 - 7 % of Alpha-acids (28 - 34 %of
Cohumulone). The ratio between Alpha and Beta is about 1.
The essential oil content varies from 0.7 to 4.0 % of dry hops. The ratio
between Alpha-Humulene and Beta-Caryophyllene in the essential oil is about
3. Bobek has good storage stability. Beer prepared with this variety has good
organoleptical scores for its bitterness and aroma. It is worth mentioning that
among all the hop varieties in Slovenia this one has the highest content of
Beta-acids. |
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COMPONENTS |
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Bitter substances* |
Aroma substances* |
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Alpha acids |
3.5-7 %
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Beta acids |
4.0-6.1% |
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Cohumulone1 |
28-34 % |
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Colupulone1 |
48-53 % |
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Total Oil2 |
0.7-4.0 % |
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Mycrene3 |
49-57 % |
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Alpha-Humulene3 |
13-19 % |
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Beta-Caryophyllene3 |
4-6 % |
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Farnesene3 |
4-7% |
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1 Cohumulone and Colupulone in % of Alpha
and Beta Acids
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2 Total oil in % of dry matter
3 Single components of total oil in relative % of total oil |
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* Actual number varies by crop year due to weather patterns and a little by the farm also (based on micro-climate). Contact for specific numbers for a given year/order.
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Older USDA Report on Bobek CAUTION: Accuracy of variety tested or data not verified.