Stark Gugger Apple Tree Solid Flush Coloration
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Solution Overview
Problem
Existing Red Delicious apple tree varieties lack a consistent and intense red-purple fruit coloration and earlier maturation, with most having striped patterns and standard growth habits that are not significantly stronger than others.
Innovation Solution
The 'Stark Gugger' variety, derived from a sport limb mutation of 'Starking Delicious', exhibits a solid flush red-purple coloration on 100% of its surface, 5-7 days earlier maturation, and 20% stronger standard growth habit compared to other Red Delicious varieties, maintaining these characteristics through asexual propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional Red Delicious varieties are used, then they have standard growth habit and striped coloration, but they lack intense solid flush coloration and earlier maturation
Solution Approach 1:
The patent applies parameter changes by selecting and propagating a sport mutation that exhibits altered physiological parameters - specifically, the 'Stark Gugger' variety displays intensified anthocyanin production (resulting in solid flush red-purple coloration covering 100% of fruit surface) and accelerated maturation kinetics (5-7 days earlier than parent variety), thereby transforming the quantitative parameters of coloration intensity and maturation timing
2Illumination intensity
If sport limb mutation is selected for coloration, then intense red-purple solid flush coloration is achieved, but growth habit strength may be compromised
Solution Approach 1:
The patent applies local quality by preserving the advantageous local characteristics of the sport mutation (intense solid flush coloration) while maintaining the overall structural integrity and growth vigor of the plant. The 'Stark Gugger' variety exhibits localized expression of enhanced pigmentation in the fruit tissue without compromising the systemic growth habit, demonstrating that specific local traits can be enhanced independently of overall plant strength
3Loss of time
If earlier maturation is achieved through mutation, then 5-7 days anticipation is obtained, but consistency of coloration and maturation across generations may be compromised
Solution Approach 1:
The patent applies copying by utilizing asexual propagation methods (grafting and budding) to create genetically identical copies of the sport mutation. This ensures that the desirable traits of early maturation and intense solid flush coloration are precisely replicated across all propagated trees, maintaining complete genetic and phenotypic consistency without the variability inherent in sexual reproduction
Data Source
AI summary
Malus domestica Borkh ‘Stark Gugger’ variety is distinguished from the ‘Starking Delicious’ variety and other Red Delicious varieties by the a unique combination of characteristics including purple red fruits with solid flush coloration on 100% of the surface, a fruit shape that is long truncated-conical with pronounced crowning at distal end, fruit coloration that starts 10 days earlier than other Red Delicious varieties; an anticipation of fruit maturation of 5-7 days compared to other Red Delicious variety and a growth habit that is standard (not spur) 20% stronger than other Red Delicious standard.