Clematis Evipo099 Compact Growth and Violet Purple Flowering
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Solution Overview
Problem
Clematis plants in commercial cultivation lack uniform and abundant violet purple flowers, compact growth suitable for container culture, and improved disease resistance, which are essential qualities for nursery culture.
Innovation Solution
A new Clematis variety 'Evipo099' was developed through controlled crossing, exhibiting vigorous and compact growth, uniform violet purple flowers, and enhanced disease resistance, achieved through asexual reproduction by vegetative stem cuttings and traditional layering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If clematis plants are grown for commercial cultivation, then they can be propagated and sold, but they lack uniform and abundant violet purple flowers, compact growth, and disease resistance
Solution Approach 1:
The patent applies parameter changes by selecting specific parental plants with desirable traits and controlling the hybridization process to produce offspring with improved characteristics. The new variety 'Evipo099' exhibits changed parameters including uniform violet purple flower color, compact growth habit, and enhanced disease resistance compared to commercial cultivars.
2Productivity
If clematis plants are bred for vigorous growth, then they can thrive, but they become too large for container culture
Solution Approach 1:
The patent applies local quality by creating a variety with differentiated growth characteristics - vigorous in terms of health and flowering but compact in terms of overall size. The new variety 'Evipo099' exhibits compact growth habit with reduced internode length and smaller overall dimensions while maintaining vigorous flowering and health, making it suitable for container culture.
3Adaptability or versatility
If clematis plants are propagated sexually, then genetic diversity is achieved, but characteristics are not true to type
Solution Approach 1:
The patent applies preliminary action by performing controlled hybridization to establish a new variety with stabilized characteristics, then using asexual propagation methods to maintain those characteristics true to type. The preliminary hybridization step creates the desired genetic combination, and subsequent vegetative propagation preserves it uniformly across all plants.
4Reliability
If new clematis varieties are developed through hybridization, then unique qualities are achieved, but the breeding process is time-consuming
Solution Approach 1:
The patent applies copying by using asexual propagation methods (vegetative stem cuttings and traditional layering) to replicate the new variety 'Evipo099' exactly as it was originally developed through hybridization. This copying process maintains all unique qualities while significantly reducing the time required compared to repeated sexual breeding cycles.
Data Source
AI summary
A new Clematis plant with a compact growth habit, profuse, violet purple flowers, and continuous summer flowering. The variety successfully propagates from softwood cuttings and is suitable for cultivation in commercial nursery culture. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation from vegetative cuttings.