Euonymus DANDEL Variegated Foliage Cultivar
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for a new cultivar of Euonymus fortunei that exhibits unique and stable variegated foliage characteristics, compact growth habit, and resistance to pests and diseases, distinct from existing cultivars like 'Emerald Beauty', 'Emerald Green', and 'Emerald Gaiety'.
Innovation Solution
The cultivar 'DANDEL' is a naturally occurring branch mutation of Euonymus 'Emerald Beauty' with variegated foliage, compact and spreading habit, and slow growth, achieved through asexual propagation by softwood stem cuttings, maintaining its characteristics in successive generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If asexual propagation by softwood cutting is used, then the characteristics of the new cultivar are stable and reproduced true to type, but the propagation process requires specific technical expertise and time
Solution Approach 1:
The patent performs preliminary selection and identification of the branch mutation before propagation, ensuring that only the desired variegated form is propagated. This preliminary action ensures characteristic stability from the outset, avoiding the need for repeated selection processes in subsequent generations.
Solution Approach 2:
The patent uses asexual propagation by softwood cutting to create exact genetic copies of the parent plant. This copying method ensures that the variegated characteristics are reproduced true to type in successive generations, maintaining stability without genetic variation.
2Shape
If the cultivar exhibits compact growth with short internode lengths, then the plant achieves a dense ornamental appearance, but the plant size is reduced
Solution Approach 1:
The patent exhibits variegated foliage with broad creamy white margins and dark green and grey-green centers, creating local quality variations in the leaves that enhance ornamental value without affecting overall plant size. The compact growth habit with dense branching also represents local quality optimization for ornamental purposes.
3Shape
If the foliage margins are broad and creamy white, then the variegation pattern is highly ornamental, but the green tissue area is reduced
Solution Approach 1:
The patent creates local quality variations within the leaf structure by developing broad creamy white margins contrasting with dark green and grey-green centers. This local differentiation enhances the ornamental variegation pattern while maintaining sufficient green tissue for photosynthesis in the leaf centers.
Solution Approach 2:
The patent exhibits variegated foliage with broad creamy white margins and dark green and grey-green centers, utilizing color changes to create an ornamental pattern. The color variation is distributed across the leaf surface, with the green centers maintaining photosynthetic function while the white margins provide aesthetic value.
Data Source
AI summary
A new cultivar of Euonymus, ‘DANDEL’, that is characterized by its variegated foliage with broad creamy white margins and dark green and grey-green centers, its compact, upright and spreading plant habit with dense branching and stems with short internode lengths, and its slow growth habit.