Kokanee Raspberry Cultivar Breeding for Fruit Firmness and Yield
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Solution Overview
Problem
Existing raspberry cultivars lack a combination of firmness, uniform shape, and delayed ripening with high yields of large, bright-red, sweet, and flavorful fruit, which are not consistently met by current varieties like 'Vintage' and 'Heritage'.
Innovation Solution
The new raspberry cultivar 'Kokanee' (Rubus idaeus L.) is developed through crossing ORUS 1173-2 and 'Vintage', resulting in a firmer, more uniformly shaped, and later-ripening plant with conic, sweet, and flavorful fruit, characterized by moderate to high yields, achieved through asexual reproduction using root cuttings and microcuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing raspberry cultivars like 'Vintage' and 'Heritage' are used, then they produce fruit with certain yield and size, but they lack the combination of firmness, uniform shape, and delayed ripening with high yields of large, bright-red, sweet, and flavorful fruit
Solution Approach 1:
The patent applies parameter changes by crossing two different raspberry cultivars (ORUS 1173-2 and 'Vintage') to create a new cultivar 'Kokanee' with optimized parameters including later ripening time, improved firmness, more uniform conical shape, and maintained high yield. This breeding approach changes the genetic parameters to achieve the desired combination of traits.
2Duration of action of moving object
If existing raspberry cultivars are used, then they ripen at certain times, but they do not achieve the combination of delayed ripening with high yields of large, bright-red, sweet, and flavorful fruit
Solution Approach 1:
The new cultivar 'Kokanee' changes the ripening time parameter by being later-ripening compared to its parents, while simultaneously maintaining or improving yield. This parameter change in ripening duration allows for extended growing season and potentially better fruit quality characteristics.
3Strength
If existing raspberry cultivars are used, then they produce fruit with certain quality characteristics, but they lack the combination of firmness with large size and bright-red color
Solution Approach 1:
The patent achieves parameter changes that simultaneously improve fruit firmness and maintain large fruit size. The new cultivar produces large, firm fruit with bright-red color, overcoming the trade-off between firmness and size present in existing cultivars.
Data Source
AI summary
A new and distinct red raspberry cultivar distinguished by its moderate to high yields of large, bright-red-colored, firm, conic, sweet, flavorful fruit with excellent fresh fruit quality borne on primocanes in late summer