Catharanthus Eld Stjarna Compact Growth and Flower Color Mutation
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Solution Overview
Problem
There is a need for a new and distinct Catharanthus roseus cultivar that exhibits specific traits such as compact growth, vigorous flowering, and unique flower color, which are not met by existing cultivars like 'Suncatha 2460', particularly in terms of internode length and flower color.
Innovation Solution
The cultivar 'Eld Stjarna' is a naturally occurring branch mutation of Catharanthus roseus, characterized by a compact, semi-upright growth habit, vigorous branching, long flowering period, and small red-purple star-shaped flowers that lighten with development, distinguished by its stable reproduction through vegetative tip cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If existing cultivars like 'Suncatha 2460' are used, then light red purple flowers are produced, but the flower color and internode length do not meet the desired specifications
Solution Approach 1:
The patent applies parameter changes by selecting a natural branch mutation that exhibits altered phenotypic parameters - specifically, the new cultivar 'Eld Stjarna' has lighter red-purple flowers compared to the deep pink of its parent and different internode length characteristics compared to 'Suncatha 2460'. This mutation-based approach allows modification of color and growth parameters while maintaining species stability.
2Volume of moving object
If compact growth habit is achieved through selection, then plant size is reduced, but growth vigor may be compromised
Solution Approach 1:
The patent applies local quality by achieving compact overall plant architecture through specific branching patterns and internode length characteristics while maintaining vigorous local growth activity. The cultivar exhibits freely basal branching and semi-upright habit that creates a compact mounding form, yet the plants maintain strong flowering capacity and continuous bloom, demonstrating that compactness and vigor are not mutually exclusive when local growth characteristics are optimized.
3Device complexity
If freely basal branching habit is promoted, then plant complexity increases, but ease of cultivation may be reduced
Solution Approach 1:
The patent applies self-service by selecting a cultivar that naturally exhibits freely basal branching as an inherent trait rather than requiring人工 intervention to achieve the branching pattern. The plant self-regulates its branching architecture through its genetic programming, producing a compact mounding form with numerous basal branches without requiring pruning or training, thereby maintaining cultivation ease despite the complex appearance.
Data Source
AI summary
A new and distinct cultivar of Catharanthus plant named ‘Eld Stjama’, characterized by its compact, semi-upright and uniformly mounding plant habit; vigorous growth habit; freely basal branching habit; freely flowering habit; long flowering period; relatively small star-shaped red purple-colored flowers that become light red with development; and good garden performance.