Impatiens Imdobicor Compact Growth and Continuous Flowering
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Solution Overview
Problem
There is a need for a compact, early-flowering Impatiens cultivar with large, double flowers and attractive foliage that can be reliably reproduced asexually and thrives in various climatic zones, including as a perennial in zones 9 and 10 in the US.
Innovation Solution
A new cultivar of Impatiens walleriana, 'Imdobicor', developed through planned breeding, characterized by compact growth, early flowering, and large double flowers, reproduced via cuttings, with specific characteristics such as orange and white flowers without pollen cap or stigma, stable across generations, and suitable for containers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a compact growing habit is selected for breeding, then plant size is reduced and space efficiency is improved, but flower size and flowering duration may be compromised
Solution Approach 1:
The breeding program systematically varied genetic parameters to achieve a novel combination where compact growth habit coexists with extended flowering duration. The cultivar 'Imdobicor' demonstrates that by changing the genetic parameters of parent selections, it is possible to overcome the traditional trade-off between plant size and flowering duration, achieving both compact form (14 cm height) and prolonged blooming (Spring to Fall in gardens, year-round in greenhouses).
2Loss of time
If early flowering is prioritized in breeding, then time to first bloom is reduced, but overall flowering duration and total flower production may be reduced
Solution Approach 1:
The cultivar achieves continuous flowering from Spring to Fall in garden conditions and year-round in greenhouse settings. This continuous blooming cycle ensures that while individual flowers may have moderate longevity, the overall productivity is maximized through uninterrupted flower production, effectively resolving the contradiction between early flowering and total flower production.
3Shape
If large double flowers are selected, then aesthetic value and flower size are improved, but flowering duration and number of blooms may be reduced
Solution Approach 1:
The cultivar merges two previously conflicting traits: large double flowers (4.4 cm diameter with multiple petal layers) and high flower production (continuous blooming throughout the season). The breeding program successfully combined these traits by selecting parent plants that contributed both large flower genetics and high prolificacy, resulting in a cultivar that produces numerous large double flowers simultaneously throughout the flowering season.
4Stability of the object's composition
If asexual reproduction is used for propagation, then genetic stability and true-to-type reproduction are improved, but propagation time and production cycle may be extended
Solution Approach 1:
The breeding program performed preliminary selection and stabilization of desired traits through multiple generations of asexual propagation before commercial release. By pre-establishing the genetic stability of 'Imdobicor' through repeated cutting propagation and trait verification, the cultivar is now ready for efficient commercial production where the 6-8 week crop time from unrooted cutting to finished plant represents an optimized balance between genetic stability and production speed.
Data Source
AI summary
A new Impatiens plant, characterized particularly as to novelty by a strong and upright growing habit, freely branching, resulting in a compact growing habit with large, double, orange and white flowers, flowering above the foliage.