Ligularia Bottle Rocket Compact Cultivar Mutation
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Solution Overview
Problem
There is a need for a new and distinct cultivar of Ligularia that is more compact and denser in foliage with unique characteristics such as vertical columnar scapes producing dense clusters of golden yellow flowers, which differentiate it from existing Ligularia varieties.
Innovation Solution
The development of Ligularia 'Bottle Rocket', a compact and denser cultivar with shorter scape height, bidentate to palmatifid incised leaves of primarily dark green, and dense clusters of golden yellow flowers, derived from a single uninduced mutation of Ligularia 'Little Rocket' and propagated through sterile plant tissue culture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If Ligularia 'Little Rocket' is used as the parent cultivar, then the plant produces golden yellow flowers with upright scapes, but the plant height and foliage spread are too large for compact garden applications
Solution Approach 1:
The patent applies parameter changes by selecting a spontaneous mutation that altered the growth parameters of the parent plant. The mutant plant exhibits reduced height (100-120 cm vs. larger parent), reduced foliage spread, and increased foliage density while maintaining the golden yellow flower production and upright scape characteristics. This natural parameter change resolves the contradiction between compact size and reliable flower production.
2Quantity of substance
If existing Ligularia cultivars with deeper reddish-brown foliage are used, then the foliage color is more striking, but the foliage density and compactness are reduced
Solution Approach 1:
The patent applies local quality by maintaining the dark green foliage color characteristic of the parent cultivar while achieving superior foliage density and compactness. The mutant plant produces darker, more densely packed foliage with a compact mounded habit, creating aesthetic appeal through density rather than color variation. This resolves the contradiction by achieving quantity (density) without sacrificing quality (aesthetic appeal).
3Length of stationary object
If Ligularia cultivars with taller scape height are used, then the flowers are more visible, but the overall plant becomes less compact and harder to manage in small spaces
Solution Approach 1:
The patent applies parameter changes by establishing an optimal scape height range of 60-80 cm, which is shorter than the parent cultivar but still sufficient for flower visibility. This parameter change achieves the dual goal of maintaining flower display effectiveness while improving plant compactness and manageability in small garden spaces, resolving the contradiction between scape length and overall compactness.
Data Source
AI summary
The new and distinct cultivar of ornamental Ligularia plant, Ligularia ‘Bottle Rocket’ with compact habit, vertical columnar scapes producing dense clusters of golden yellow inflorescences and broad bidentate to palmatifid incised dark green leaves.