New Guinea Impatiens Cultivar SAKIMP005 Breeding
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Solution Overview
Problem
There is a need for a new cultivar of New Guinea Impatiens that exhibits a unique combination of pinkish-red flower color, spreading growth habit, vigorous rooting, and variegated leaves, which are not adequately met by existing Impatiens varieties.
Innovation Solution
The cultivar 'SAKIMP005' is developed through interspecific hybridization between 'NG-02WM1' and 'NG-01H-15B', resulting in a plant with pinkish-red flowers, spreading growth habit, vigorous rooting, and variegated leaves, which are stable across successive generations of asexual propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If interspecific hybridization is performed between different Impatiens varieties, then unique flower color and growth habit are achieved, but breeding complexity and time increase
Solution Approach 1:
The patent applies preliminary action by pre-selecting parent lines with specific desirable traits (deep-orange flowers from 'NG-02WM1' and magenta flowers from 'NG-01H-15B') before hybridization. This preliminary selection of parents with complementary characteristics streamlines the breeding process and increases the likelihood of obtaining offspring with the desired pinkish-red flower color and spreading growth habit, reducing the complexity of subsequent selection steps.
2Reliability
If strict selection criteria are applied during field trials, then plant quality and trait stability are improved, but evaluation time and resources increase
Solution Approach 1:
The patent applies segmentation by dividing the evaluation process into distinct phases: initial field trials in Misato, Japan (open field trial), followed by regeneration and reevaluation in Salinas, Calif. (controlled greenhouse conditions). This segmented approach allows for systematic assessment of trait stability across different environments and generations, ensuring reliable selection while managing evaluation time through structured progression.
3Adaptability or versatility
If multiple evaluation locations are used, then environmental adaptability is improved, but trial complexity and cost increase
Solution Approach 1:
The patent applies local quality by conducting evaluations at two distinct locations with different environmental conditions: Misato, Japan (open field trial) and Salinas, Calif. (greenhouse conditions). Each location provides specific environmental qualities that test different aspects of plant adaptability. The F1 plants were evaluated in Misato under natural field conditions, then selected plants were regenerated in Salinas under controlled greenhouse conditions, allowing assessment of trait stability across diverse environments.
Data Source
AI summary
A New Guinea Impatiens cultivar particularly distinguished by having large, pinkish-red flowers, vigorous rooting, spreading growth habit and variegated leaves is disclosed.