Triploid Hop Cultivar Hort7709 High Oil Alpha Acid Yield
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Solution Overview
Problem
Current hop cultivars lack a variety with a unique chemistry profile and agronomic performance that meets specific brewing and flavor requirements, particularly in terms of alpha acid yield and essential oil content, under New Zealand growing conditions.
Innovation Solution
The development of the triploid hop cultivar 'Hort7709', which exhibits a distinct chemistry profile with high oil yield per gram of alpha acid, medium cone production, and specific vine characteristics, such as club-shape and medium thorn count, differentiated from its tetraploid parent and other common cultivars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional hop cultivars are used, then established agronomic performance is maintained, but unique chemistry profile and high oil yield per gram of alpha acid are not achieved
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific chemical composition parameters in the hop cultivar. The triploid cultivar 'Hort7709' exhibits altered chemistry parameters including high oil content, specific alpha acid profiles, and unique essential oil composition compared to conventional tetraploid cultivars. This chemical parameter optimization resolves the contradiction by achieving both high oil yield and unique chemistry profile.
Solution Approach 2:
The patent creates a composite genetic structure through triploidy (three sets of chromosomes) combining traits from different parental lines. This composite genetic makeup produces a unique chemistry profile that neither parent possessed alone, achieving both high oil yield per gram of alpha acid and unique aromatic characteristics that conventional single-parent cultivars cannot provide.
2Quantity of substance
If triploid cultivar 'Hort7709' is developed, then unique chemistry profile and high oil yield are achieved, but ploidy level differs from tetraploid parent
Solution Approach 1:
The patent applies local quality by maintaining different ploidy levels in different genetic lines for specific functional advantages. The triploid 'Hort7709' is stabilized for its specific chemical production traits (high oil, unique profile) while the tetraploid parent maintains its own stability. Each ploidy level is optimized for its specific chemical composition characteristics, resolving the contradiction between unique chemistry and ploidy stability.
3Reliability
If extensive evaluation and testing are conducted, then uniformity and performance are confirmed, but time and resources for development increase
Solution Approach 1:
The patent applies preliminary action by conducting multi-season field trials and evaluations before official cultivar release. The triploid 'Hort7709' underwent extensive testing across multiple growing seasons to confirm uniformity, chemical consistency, and agronomic performance. This preliminary validation ensures reliability is established before widespread adoption, resolving the contradiction between confirming uniformity and the time required for such confirmation.
Data Source
AI summary
A new and distinct Hop plant is described. The cultivar results out of a selection from a population of seedlings derived from the open pollination of a tetraploid seedling selection 95-28-24 (not patented). The cones are of a small size, oval shape, ripen mid-late season, and have slightly open bracts. The cultivar has been shown to have a unique chemistry profile; of particular interest is the high yield of oil per gram of alpha acid.