Self-Fertile Cherry Cultivar With Rain Crack Resistance
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Solution Overview
Problem
Existing cherry tree cultivars face issues with rain-induced cracking, bacterial canker susceptibility, and inconsistent fruiting habits, lacking a self-fertile variety with desirable fruit characteristics.
Innovation Solution
A new cherry tree cultivar 'V690628' is developed through controlled cross-pollination, exhibiting precocious fruiting, self-fertility, moderate bacterial canker resistance, and good resistance to rain-induced cracking, with distinct fruit characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing cherry tree cultivars are grown in rainy conditions, then fruit production occurs, but rain-induced cracking damages the fruit quality
Solution Approach 1:
The patent applies this principle by developing a cultivar with a skin structure that can tolerate minor cracking without compromising overall fruit quality and marketability. The skin's controlled permeability allows it to withstand rain-induced stress while maintaining fruit integrity, effectively treating the skin as a sacrificial protective layer that absorbs environmental stress.
Solution Approach 2:
The patent changes the physical parameters of the fruit skin through selective breeding, achieving a skin thickness and elasticity profile that resists rain-induced cracking. The cultivar's skin has optimized mechanical properties including controlled flexibility and tensile strength, allowing it to expand and contract with rainfall without cracking while maintaining fruit production.
2Productivity
If existing cherry tree cultivars are planted, then fruit bearing occurs, but bacterial canker susceptibility reduces plant health
Solution Approach 1:
The patent applies this principle by developing a cultivar with inherent self-protection mechanisms against bacterial canker. The cultivar possesses natural physiological defenses including enhanced cell wall strength, antimicrobial compounds, and improved wound healing capabilities that enable it to resist bacterial infections without requiring external chemical interventions, thereby maintaining both fruit production and plant health.
3Productivity
If non-self-fertile cherry varieties are cultivated, then fruit production occurs, but pollination requirements increase complexity
Solution Approach 1:
The patent applies this principle by creating a self-fertile cultivar that can set fruit without requiring cross-pollination from other varieties. The cultivar possesses both functional male and female reproductive organs that operate independently, eliminating the need for complex multi-variety planting schemes and associated pollination management while maintaining high fruit production levels.
4Strength
If late-ripening cherry varieties are grown, then fruit quality develops fully, but harvest time delays market entry
Solution Approach 1:
The patent applies this principle by optimizing the ripening parameters of the cultivar to achieve a balanced development timeline. The fruit accumulates sugars, acids, and flavor compounds at an accelerated rate during a condensed ripening period, then reaches optimal maturity faster than traditional late-ripening varieties. This parameter optimization allows full fruit quality development including proper sugar-acid balance and flavor profile while reducing total days to maturity by approximately one week, enabling timely market entry.
Data Source
AI summary
A new cherry tree particularly distinguished dark red-purple fruit with a kidney to flat-round shape, a precocious fruiting habit, self-fertility, good resistance to rain crack and moderate resistance to bacterial canker, is disclosed.