PEJamore Rose Color Stability and Disease Resistance
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Solution Overview
Problem
Current rose cultivars lack a variety with unique ivory and cranberry 'eye' flower coloration, excellent color stability, and a bushy spreading tall growing habit suitable for outdoor garden decoration, which are not adequately addressed by existing commercial rose cultivars.
Innovation Solution
The new Rosa hybrida variety 'PEJamore' combines unusual ivory with cranberry 'eye' flower coloration, excellent color stability, and a vigorous bushy spreading tall growing habit, achieved through asexual reproduction by budding and grafting, distinguishing it from its seed and pollen parents and closest commercially available cultivars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If existing commercial rose cultivars are used, then common flower colors and compact habits are available, but unique ivory with cranberry 'eye' coloration and bushy spreading tall growing habit are not achieved
Solution Approach 1:
The patent combines multiple genetic lineages through controlled breeding to create a composite rose variety with unique characteristics. The seed parent 'PEJamblu' contributes the ivory base color and cranberry eye coloration, while the pollen parent provides vigor and bushy spreading habit, resulting in a composite genotype that expresses both unique coloration and tall spreading growth pattern
Solution Approach 2:
The flower exhibits local quality through its distinctive two-tone coloration pattern where the cranberry 'eye' is concentrated at the center of the ivory petals. This localized color differentiation creates visual interest and uniqueness that distinguishes the variety from uniform-colored commercial cultivars
2Stability of the object's composition
If asexual reproduction by budding and grafting is used, then true-to-form coloration and growth habit are transmitted, but propagation complexity increases compared to seed propagation
Solution Approach 1:
The patent employs asexual reproduction methods (budding and grafting) that create genetic copies of the parent plant. This ensures the unique ivory with cranberry 'eye' coloration and bushy spreading habit are precisely replicated in offspring without the genetic variation introduced by seed propagation, maintaining composition stability
3Productivity
If small flower size is accepted, then vigorous growth and bushy spreading habit are achieved, but flower display impact is reduced compared to large-flowered varieties
Solution Approach 1:
The patent accepts a parameter change in flower size (smaller, 3.0-3.5 cm diameter) as a trade-off to achieve superior growth parameters (vigorous growth, bushy spreading habit, 165-200 cm height). This parameter optimization prioritizes overall plant productivity and architectural form over individual flower size impact
Data Source
AI summary
A new variety of Shrub rose suitable for garden decoration, having flowers of ivory with a cranberry ‘eye’ coloration.