Verbena Duempdared Cultivar Compact Habit Large Red Flowers
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Solution Overview
Problem
There is a need for new Verbena cultivars with uniform, attractive, and stable large flowers that can thrive under varying environmental conditions and cultural practices, while differing from existing cultivars in terms of branching, flower color, leaf size, and inflorescence characteristics.
Innovation Solution
The development of a new Verbena hybrida cultivar, 'Duempdared', resulting from a controlled breeding program, which exhibits a compact, mounding, and cascading plant habit with freely branching and flowering traits, featuring large dark red flowers held above the foliage, and distinct differences in leaf and flower size compared to its parents and other cultivars like 'Sunmaribisu'.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a controlled breeding program is used to create new Verbena cultivars, then uniform and stable large flowers can be achieved, but the development time and complexity of the breeding process increase
Solution Approach 1:
The breeding program employed preliminary actions by selecting and crossing specific parent plants (V00-3814-1 and F-20-19) with desired traits before the actual flowering and seed production. The controlled cross-pollination was performed in advance to ensure uniformity from the outset, and the selected plant was propagated asexually through terminal cuttings to maintain stability without requiring continuous breeding cycles.
2Reliability
If asexual reproduction by terminal cuttings is used, then stable and true-to-type reproduction is achieved, but the propagation time and labor requirements increase
Solution Approach 1:
The selected Verbena plant performed self-service by producing terminal cuttings that naturally rooted and reproduced true-to-type without requiring external intervention. The cuttings were taken in May 2005 and propagated in a controlled greenhouse environment, where the plant's own genetic material was used to create identical copies, ensuring reliability while minimizing the need for complex breeding procedures.
3Volume of moving object
If the plant habit is made compact and mounding, then space efficiency is improved, but the overall plant size and flower display area are reduced
Solution Approach 1:
The Verbena plant solved the spatial contradiction by transitioning from a linear growth pattern to a three-dimensional mounding habit. The compact growth form with cascading branches creates vertical density while the inflorescences extend outward and upward, effectively utilizing multiple spatial dimensions to maintain large flower display area despite reduced overall plant volume.
4Productivity
If freely branching and flowering habits are cultivated, then productivity and ornamental value are improved, but the plant structure becomes more complex
Solution Approach 1:
The Verbena plant exhibited dynamic growth patterns where branches and inflorescences developed freely in response to environmental stimuli. The plant structure was not rigid but adaptable, allowing continuous branching and flowering throughout the growing season. This dynamic behavior increased productivity while the natural growth patterns kept the structural complexity manageable compared to forced or pruned structures.
Data Source
AI summary
A new and distinct cultivar of Verbena plant named ‘Duempdared’, characterized by its compact, mounding and cascading plant habit; freely branching habit; freely flowering habit; and large dark red-colored flowers that are held above and beyond the foliage in mounded umbels.