Cornus Florida Cultivar With Red-Pink Bracts and Mildew Resistance
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Solution Overview
Problem
Existing cultivars of Cornus florida lack distinct red-pink flowers with yellow centers, strong central leaders, rapid growth, and resistance to powdery mildew, making them less desirable for ornamental landscaping.
Innovation Solution
The development of the 'Elsie Red' cultivar, which exhibits bright red-pink flowers with yellow centers, good branching, a strong central leader, rapid growth, and resistance to powdery mildew, achieved through asexual propagation by budding onto seedlings of Cornus florida.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If existing cultivars of Cornus florida are used, then they have white flowers, but they lack distinct red-pink flowers with yellow centers desired for ornamental landscaping
Solution Approach 1:
The patent applies parameter changes by selecting and propagating a mutant plant with altered flower color parameters (red-pink bracts with yellow centers) from the original white-flowered population. This color parameter change creates the desired ornamental quality that distinguishes the new cultivar for landscaping use.
2Strength
If existing cultivars are used, then they have weaker branching, but they lack strong central leaders needed for desirable plant form
Solution Approach 1:
The patent utilizes parameter changes in the plant's structural development by selecting a mutant that exhibits altered branching parameters, specifically stronger central leaders and improved branch strength. This structural parameter change produces the desired plant form without excessive complexity.
3Productivity
If existing cultivars are used, then they have slower growth, but they lack rapid growth habit desired for quick landscaping establishment
Solution Approach 1:
The patent applies parameter changes by selecting a mutant plant with altered growth rate parameters. The new cultivar exhibits faster growth velocity and earlier maturity compared to existing cultivars, allowing quicker establishment in landscaping applications while maintaining proper development.
4Reliability
If existing cultivars are used, then they have poor disease resistance, but they lack resistance to powdery mildew needed for low-maintenance landscaping
Solution Approach 1:
The patent utilizes parameter changes by selecting a mutant plant with altered disease resistance parameters. The new cultivar shows enhanced reliability against powdery mildew and other diseases, reducing susceptibility to harmful factors and lowering maintenance requirements for landscaping applications.
5Strength
If existing cultivars are used, then they have less wind tolerance, but they lack sturdy flowers with high wind tolerance needed for reliable performance
Solution Approach 1:
The patent applies parameter changes by selecting a mutant with altered flower strength parameters. The new cultivar exhibits sturdier flowers with improved structural integrity that can withstand wind forces, reducing wind damage and improving reliable performance in various weather conditions.
Data Source
AI summary
A new cultivar of Cornus florida plant named ‘Elsie Red’ that is characterized by its flowers that are bright red-pink in color (bracts) with yellow centers, its rapid growth habit, its good resistance to powdery mildew, and its flowers that are sturdy and have a high tolerance to wind.