Compact Clematis Passion Plum Breeding for Extended Flowering
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Solution Overview
Problem
There is a need for a new Clematis cultivar with a compact plant habit, extended flowering period, and distinctive dark pink flowers that is stable across varying environmental conditions.
Innovation Solution
The cultivar 'Passion Plum' is developed by crossing Clematis lanuginosa 'Carnaby' with Clematis patens 'Rosa Konigskind', resulting in a compact, highly floriferous plant with long-lasting dark pink flowers, which maintains its unique characteristics under different environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If Clematis lanuginosa 'Carnaby' is crossed with Clematis patens 'Rosa Konigskind' to create a new cultivar, then the flowering period is extended and flower color is enhanced, but the plant size becomes unmanageably large
Solution Approach 1:
The patent applies parameter changes by selectively breeding for specific traits - maintaining the extended flowering period (15-20 weeks) and dark pink flower color while reducing plant height to a compact 30-60 inches through controlled genetic selection in the crossing program
2Quantity of substance
If Clematis lanuginosa 'Carnaby' is crossed with Clematis patens 'Rosa Konigskind' to achieve darker pink flowers, then flower color intensity is improved, but the plant becomes less compact
Solution Approach 1:
The patent changes genetic parameters through controlled crossing to achieve the desired phenotype - selecting for intense dark pink flower color (RHS 68A-70B) while simultaneously selecting for compact growth habit with 30-60 inch height and 20-30 inch spread
3Duration of action of moving object
If a new Clematis cultivar is developed with extended flowering period, then the flowering duration is increased, but the plant requires more space
Solution Approach 1:
The patent applies parameter changes by breeding for compact dimensions (20-30 inch spread) while maintaining the extended flowering duration of 15-20 weeks, achieving both goals through selective genetic combination from parent varieties
Data Source
AI summary
A new and distinct Clematis cultivar named ‘Passion Plum’ is disclosed, characterized by short, very compact plant growth and a long, continuous flowering period from Spring through Summer. Flowers are distinctively colored dark pink with a darker pink bar. The new cultivar is a Clematis, suitable for ornamental garden purposes.