Spiraea SMNSJSA Cultivar Stable Trait Reproduction
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Solution Overview
Problem
There is a need for new compact and mounding Spiraea plants with attractive leaves and numerous flowers that can reproduce stably and maintain their unique features across varying environmental conditions.
Innovation Solution
A new cultivar of Spiraea japonica, 'SMNSJSA', developed through planned breeding, exhibiting a compact, upright, and mounding habit with vibrant leaf color changes and abundant purplish-red flowers, achieved through asexual reproduction by softwood cuttings, distinguishing it from existing Spiraea plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional Spiraea breeding methods are used, then genetic diversity is achieved, but stable reproduction of unique features across generations is compromised
Solution Approach 1:
The patent applies preliminary action by selecting and propagating a specific plant that already exhibits the desired unique features (compact mounding habit, vibrant foliage, abundant flowers) through asexual reproduction. This preliminary selection and stabilization of traits before widespread propagation ensures that the cultivar will reliably reproduce its distinctive characteristics across generations while maintaining genetic consistency.
2Volume of moving object
If Spiraea plants are bred for compact mounding habit, then plant size is reduced, but growth vigor and rapidity may be compromised
Solution Approach 1:
The patent applies local quality by creating a plant with non-uniform growth distribution - the Spiraea exhibits compactness and mounding habit in its overall form while maintaining vigorous growth rates and rapid development. The plant achieves dense branching and compact structure in specific regions while preserving overall growth vigor, allowing it to fill space efficiently without sacrificing productivity.
3Ease of manufacture
If Spiraea plants are bred for vibrant foliage color, then leaf pigmentation is enhanced, but stability of color across varying environmental conditions may be reduced
Solution Approach 1:
The patent applies this principle metaphorically by selecting a cultivar that produces vibrant foliage color through stable genetic inheritance rather than relying on environmental factors or temporary conditions. The asexual propagation method ensures that the colorful foliage trait is reliably reproduced in each generation, making the visual appeal consistent and predictable across different growing seasons and environmental variations.
Data Source
AI summary
A new and distinct cultivar of Spiraea plant named ‘SMNSJSA’, characterized by its compact, upright, outwardly spreading and mounding plant habit; vigorous growth habit and rapid growth rate; freely branching habit; dense and bushy habit; leaves that are initially reddish orange in color, becoming bright greenish yellow and eventually darker yellow green with development; inflorescences with numerous bright purplish red-colored flowers; and good garden performance.