SPC342 Sweet Cherry Cultivar Breeding for High Stem Pull Force
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Solution Overview
Problem
Existing cherry tree cultivars lack improvements in fruit appearance, taste, flesh texture, tree quality, productivity, and precocity, with limited options for cultivars that combine desirable traits such as high fruit stem pull force, large fruit size, and good storage capacity.
Innovation Solution
The development of the new cultivar 'SPC342' of Prunus avium, which exhibits high fruit stem pull force, large attractive fruit, non-self-fertile flowers, distinctive maroon spots on leaves, and good fruit storage capacity, achieved through a breeding program and stabilized by asexual propagation methods like chip budding and grafting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing cherry tree cultivars are used, then traditional fruit production is maintained, but fruit appearance, taste, flesh texture, tree quality, productivity and precocity remain limited
Solution Approach 1:
The patent applies parameter changes by developing a new cultivar with specific genetic traits that alter fruit characteristics including stem pull force (10N minimum), fruit size (20mm diameter), and storage capacity. These parameter changes are achieved through selective breeding and asexual propagation to maintain consistent quality while improving productivity
2Volume of moving object
If cherry cultivars with large fruit size are selected, then fruit appearance is improved, but fruit stem pull force may be compromised
Solution Approach 1:
The patent applies local quality by ensuring that specific regions of the fruit (stem attachment area) have enhanced structural properties. The fruit exhibits localized strength at the stem attachment point with pull force of 10N or more, while maintaining overall large fruit size (20mm diameter), allowing both large size and strong stem attachment to coexist
3Duration of action of stationary object
If cherry cultivars are bred for extended storage capacity, then storage duration is improved, but fruit freshness and quality may deteriorate
Solution Approach 1:
The patent applies beforehand cushioning by breeding the cultivar with inherent protective characteristics that cushion against quality deterioration during storage. The fruit exhibits natural resistance to storage-related degradation, maintaining freshness and quality attributes for extended periods through pre-established physiological properties rather than post-harvest interventions
Data Source
AI summary
A new cultivar of sweet cherry tree, ‘SPC342’, that is characterized by its very high fruit stem pull force, its large fruit with an attractive appearance, its flowers that are not self-fertile, its distinctive maroon spots on its leaves, and its good fruit storage capacity in MAP (modified atmosphere packaging).