SPC103 Sweet Cherry Cultivar Breeding for Late Harvest and Firmness
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Solution Overview
Problem
Existing cherry tree cultivars have limitations in extending the harvest season, fruit firmness, and self-fertility, which restricts their adaptability and productivity.
Innovation Solution
The development of the 'SPC103' sweet cherry tree cultivar, which exhibits a late harvest season, self-fertile flowers, intermediate to high precocity, and dark red-purple fruit with high sweetness, achieved through a breeding program and stabilized by asexual propagation methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If existing cherry tree cultivars are used, then fruit production is maintained, but the harvest season cannot be extended and fruit firmness is insufficient
Solution Approach 1:
The patent applies parameter changes by selecting and breeding trees with specific genetic parameters that control harvest timing and fruit firmness. The cultivar SPC103 was developed by changing the genetic parameters of the tree through controlled pollination and selection, resulting in a tree that harvests later in the season while producing firm fruit, thus resolving the contradiction between extending harvest season and maintaining fruit firmness.
2Adaptability or versatility
If existing cherry tree cultivars are used, then fruit production is maintained, but self-fertility is limited and adaptability is reduced
Solution Approach 1:
The patent applies universality by developing a cultivar that combines multiple desirable traits including self-fertility, late harvest, firm fruit, and high sweetness. The SPC103 cultivar is designed to perform multiple functions simultaneously - it is self-fertile (reducing the need for cross-pollination partners), produces firm fruit (improving handling and storage), and extends the harvest season, thereby enhancing both adaptability and productivity.
3Stability of the object's composition
If asexual propagation is used, then stability across generations is achieved, but the initial development time is extended
Solution Approach 1:
The patent applies preliminary action by first developing the desired genetic characteristics through controlled pollination and selection during the breeding program, then using asexual propagation (budding) to rapidly multiply the selected cultivar. This preliminary selection and stabilization of characteristics before mass propagation ensures genetic stability across generations while minimizing the overall development time through efficient breeding strategies.
Data Source
AI summary
A new cultivar of Prunus avium, ‘SPC103’, characterized by its very late harvest season, its flowers that are self-fertile, its intermediate to high precocity of fruit bearing, its spreading growth habit with horizontal one year-old shoots, its fruit skin and flesh that is dark red-purple in color with juice that is high in sweetness, and its firm and moderately juicy fruit that is kidney to cordate in shape.