New Guinea Impatiens Cultivar SAKIMP037 Variegated Leaf Stability
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Solution Overview
Problem
There is a need for a new cultivar of New Guinea Impatiens that combines compact growth habit, vigorous rooting, bright flower color, and variegated leaves, which existing varieties fail to consistently reproduce true to type in asexual propagation.
Innovation Solution
The development of the Impatiens hybrida hort cultivar 'SAKIMP037' through interspecific hybridization between proprietary lines 'NE-4391' and 'NF-4858', resulting in pink flowers and green leaves with yellow variegation, which are stable and reproduce true to type in successive generations via vegetative cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing Impatiens varieties are propagated asexually, then propagation is achieved, but the varieties fail to reproduce true to type consistently
Solution Approach 1:
The patent applies parameter changes by selecting and fixing specific genetic parameters through controlled hybridization between parent lines with different traits. The F1 hybridization event creates a new genetic parameter combination that stabilizes desirable traits (compact growth, variegation, flower color) for true-to-type reproduction in subsequent asexual propagations.
2Adaptability or versatility
If hybridization is performed to combine desirable traits, then new characteristics are achieved, but the complexity of breeding increases
Solution Approach 1:
The patent merges desirable traits from two different parent Impatiens lines through controlled hybridization. The female parent contributes compact growth habit and variegated leaves, while the male parent contributes other desirable characteristics, combining them into a single F1 hybrid that expresses all desired traits simultaneously.
Solution Approach 2:
The F1 hybrid variety exhibits self-service by maintaining stable trait expression through apomixis or highly stable asexual reproduction. Once the hybrid is created, it automatically reproduces true to type without requiring further breeding intervention, simplifying subsequent propagation.
3Manufacturing precision
If selection criteria include multiple traits, then plant quality is improved, but the difficulty of selection increases
Solution Approach 1:
The patent applies local quality by evaluating different traits (growth habit, leaf variegation, flower color, rooting vigor) independently at specific locations in the plant, then combining these local assessments into an overall selection decision. Each trait is measured and evaluated separately according to its own criteria before integrated selection.
Data Source
AI summary
An impatiens plant particularly distinguished by having pink flowers, and green leaves with yellow variegation, is disclosed.