Prim 25 Cherry Tree Breeding for Firm Fruit and Early Ripening
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Solution Overview
Problem
Existing sweet cherry tree varieties lack a combination of desirable traits such as early fruit ripening, firm fruit texture, and balanced growth habit, which are not adequately met by current cultivars like 'Tieton', 'Burlat', 'Bellise', 'Grace Star', and 'Kordia'.
Innovation Solution
The development of a new sweet cherry tree variety, 'Prim 25', resulting from a breeding program combining 'PC 7144-7' and an unnamed male parent, exhibits earlier ripening, firmer fruit, and a weaker growth habit compared to its parents, with characteristics like darker fruit color, larger fruit size, and earlier flowering, distinguishing it from other known varieties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cherry tree variety 'Tieton' is used, then fruit firmness is improved, but growth habit becomes too strong and ripening time is delayed
Solution Approach 1:
The patent applies parameter changes by selectively combining genetic parameters from different parent varieties to achieve optimal fruit firmness while maintaining earlier ripening. The new variety 'Prim 25' inherits firmness parameters from 'Tieton' while incorporating ripening time parameters from other early-ripening varieties, creating a balanced fruit with improved productivity characteristics.
2Ease of operation
If cherry tree variety 'Burlat' is used, then growth habit is improved, but fruit firmness is insufficient
Solution Approach 1:
The patent merges the desirable growth habit parameters from 'Burlat' with the fruit firmness parameters from 'Tieton' and other parent varieties. The new variety 'Prim 25' combines these complementary traits to achieve both manageable growth characteristics and firm fruit texture, resolving the contradiction between ease of operation and strength.
3Illumination intensity
If cherry tree variety 'Bellise' is used, then fruit color is improved, but fruit firmness is insufficient and ripening is delayed
Solution Approach 1:
The patent applies parameter changes to improve fruit firmness while maintaining desirable fruit color and early ripening characteristics. The new variety 'Prim 25' modifies the fruit quality parameters by incorporating firmness genes from 'Tieton' while preserving the color characteristics from 'Bellise' and other parent varieties, achieving a balanced improvement in multiple traits simultaneously.
4Loss of time
If cherry tree variety 'Kordia' is used, then flowering time is improved, but stem length becomes too long and growth habit is weak
Solution Approach 1:
The patent applies parameter changes to optimize the balance between early flowering time and manageable growth habit. The new variety 'Prim 25' adjusts stem length and growth characteristics by incorporating parameters from multiple parent varieties, achieving compact growth while maintaining early flowering characteristics for improved productivity.
Data Source
AI summary
A new and distinct variety of sweet cherry tree that produces dark red colored fruits with very firm fruit flesh.