Clematis Evipo057 Compact Growth and Disease Resistance
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Solution Overview
Problem
Clematis plants in commercial cultivation lacked uniform and abundant white and pink flowers, compact growth suitable for container culture, and improved disease resistance, which are essential qualities for nursery culture.
Innovation Solution
A new Clematis variety 'Evipo057' was developed through controlled crossing, exhibiting white flowers with a pink central bar, vigorous and compact growth, and enhanced disease resistance, achieved through asexual reproduction by vegetative stem cuttings and traditional layering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional clematis varieties are used in commercial cultivation, then they are available for growing, but they lack uniform and abundant white and pink flowers
Solution Approach 1:
The patent applies parameter changes by creating a new variety through controlled hybridization that alters flower color parameters (introduction of pink central bar on white background) and flowering parameters (increased abundance and uniformity). The new variety 'Evipo057' exhibits these improved parameters compared to traditional cultivars, directly resolving the contradiction between flower abundance and uniformity.
2Adaptability or versatility
If traditional clematis varieties are used, then they are available for cultivation, but they lack compact growth suitable for container culture
Solution Approach 1:
The patent changes the growth parameter of the clematis variety through selective breeding, creating 'Evipo057' with compact growth habits. The new variety exhibits reduced plant size and more compact architecture compared to traditional climbing clematis, making it adaptable to container culture while maintaining the desired flowering characteristics.
3Reliability
If traditional clematis varieties are cultivated, then they are established in commerce, but they lack improved disease resistance
Solution Approach 1:
The patent changes the disease resistance parameter through hybridization, combining genetic material from parents with complementary resistance traits. The new variety 'Evipo057' demonstrates improved reliability against common clematis diseases while maintaining ease of commercial cultivation through standard nursery practices.
4Adaptability or versatility
If controlled hybridization is performed to create new varieties, then unique qualities are achieved, but the breeding process becomes more complex
Solution Approach 1:
The patent applies preliminary action by carefully selecting parent plants with specific desired traits before performing the cross. The female parent contributed white flower color and the male parent contributed disease resistance and growth habits. This preliminary selection and controlled pollination process, while complex, efficiently produced the unique qualities seen in 'Evipo057' with white flowers featuring a distinctive pink central bar.
Data Source
AI summary
A new Clematis plant with a compact growth habit, profuse, white and pink 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.