Impatiens Silte Reeda Cultivar Breeding for Double Rose-Shaped Flowers
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Solution Overview
Problem
There is a need for new cultivars of Impatiens walleriana that exhibit distinct and desirable traits such as double, rose-shaped flowers, semi-compact growth habits, and free flowering characteristics, which are not adequately met by existing cultivars.
Innovation Solution
The development of the 'Silte Reeda' cultivar, which originated from controlled self-pollination of the proprietary red-flowered Impatiens plant 'ID03-14-4', featuring double, rose-shaped red flowers, semi-compact, upright growth, and moderate vigor, achieved through asexual propagation and tissue culture, retaining these characteristics across multiple trials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If existing Impatiens cultivars are used, then basic flowering is achieved, but distinct double rose-shaped flowers and semi-compact growth habits are not obtained
Solution Approach 1:
The patent applies parameter changes by selectively breeding for specific floral parameters (double flower structure, rose-shaped form) and growth parameters (semi-compact habit, upright posture). The controlled self-pollination process modifies genetic parameters to produce the distinctive 'Silte Reeda' cultivar with its unique combination of double petals, rose-shaped blooms, and compact mounded growth, resolving the contradiction between achieving basic flowering and obtaining distinct specialized flower forms.
2Productivity
If vigorous growth is pursued, then plant size increases, but semi-compact mounded habit is lost
Solution Approach 1:
The patent modifies growth parameters through controlled breeding to achieve a balanced state. The 'Silte Reeda' cultivar exhibits moderate vigor with semi-compact mounded habit rather than excessive vertical growth. The breeding process adjusted growth rate parameters and architectural parameters simultaneously, creating a plant that maintains productivity while achieving the desired compact upright form with good basal branching.
3Ease of manufacture
If single flowers are produced, then simpler development is achieved, but double rose-shaped flowers are not obtained
Solution Approach 1:
The patent employs preliminary action through controlled self-pollination before seed set, allowing selection of specific floral traits in the parent generation. By performing controlled pollination and selecting for double flower formation early in the breeding process, the complex double rose-shaped flower structure was achieved through planned preliminary breeding actions rather than random mutation, resolving the contradiction between breeding simplicity and floral complexity.
Data Source
AI summary
A new Impatiens plant particularly distinguished by double, rose-shaped, red flowers, semi-compact, upright, outwardly spreading and mounded plant habit, free flowering, good basal branching, and moderately vigorous growth habit, is described.