Primocane Raspberry Variety for Dual-Crop Sweet Large Fruit
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Solution Overview
Problem
There is a need for a new variety of raspberry that produces large fruits, has a sweet flavor, and is highly productive with two crops per season, while maintaining disease and pest resistance.
Innovation Solution
The development of a new raspberry variety, 'Aine', which is a primocane variety capable of producing two crops per season, with large fruits and sweet flavor, and is vegetatively propagated from a seed found in Spain, exhibiting specific characteristics such as height, growth habit, and fruit attributes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a new raspberry variety is developed to produce large fruits with sweet flavor, then fruit quality is improved, but breeding time and resource investment increase
Solution Approach 1:
The patent applies preliminary action by conducting extensive controlled crosses and selections before the final variety stabilization. The breeding program systematically evaluated multiple crossing combinations (e.g., 'Tulameen' × 'Heritage', 'Boyne' × 'Heritage') over several years, performing preliminary screenings for desired traits including fruit size, flavor, and productivity before releasing the final 'Aine' variety. This preliminary work ensured that the final variety met all quality requirements without requiring extended post-release adjustments.
2Productivity
If a raspberry variety is designed to be highly productive with two crops per season, then productivity is improved, but plant complexity and management difficulty increase
Solution Approach 1:
The patent applies dynamics by utilizing the primocane flowering trait that allows the plant to dynamically switch between two cropping cycles within the same growing season. The 'Aine' variety produces one crop on primocanes (first flowering in spring, fruiting in summer) and a second crop on floricanes (flowering in autumn, fruiting in winter). This dynamic dual-cropping capability increases productivity while the plant self-manages the complexity through its natural growth cycle, requiring standard horticultural practices rather than complex intervention systems.
3Manufacturing precision
If a raspberry variety is selected for large fruit size, then market value is improved, but number of drupelets per berry increases making processing more difficult
Solution Approach 1:
The patent applies parameter changes by selecting for a specific drupelet configuration that optimizes both fruit size and processing characteristics. The 'Aine' variety produces large berries (average weight 6.3g) with approximately 77 drupelets per berry, which is a controlled parameter that balances market appeal with processing suitability. This parameter optimization was achieved through systematic selection during breeding, evaluating fruit morphology, weight, and drupelet structure to identify the ideal combination for both fresh market and processing applications.
Data Source
AI summary
A new raspberry plant named ‘Aine’ particularly distinguished by large fruit for use in fresh market, primocane variety with two crops per season and very productive plant, and sweet flavor, is disclosed.