Catharanthus Suncatso 23 Breeding for Vigorous Growth and Double Flowers
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Solution Overview
Problem
There is a need for new Catharanthus roseus cultivars with vigorous growth, extensive branching, and long-lasting double-type flowers that are stable across various environmental conditions and cultural practices, as existing cultivars often lack these traits or exhibit variability in flower color and form.
Innovation Solution
The development of Catharanthus 'Suncatso 23' through controlled cross-pollination between proprietary selections S22-P-30 and SIR22-10, resulting in a plant with an upright to spreading habit, vigorous growth, freely branching, and long-lasting purple-violet double-type flowers, which are stable through asexual reproduction by vegetative tip cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing Catharanthus cultivars are used, then they may have simple growth habits, but they lack vigorous growth and extensive branching
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific genetic traits that control growth vigor, branching patterns, and flower characteristics. The breeding program modifies genetic parameters to achieve vigorous upright growth, extensive basal branching, and prolonged flowering while maintaining stability across environmental conditions.
2Duration of action of moving object
If existing Catharanthus cultivars are used, then they may have shorter flowering periods, but they lack long-lasting double-type flowers
Solution Approach 1:
The patent changes the floral parameters by breeding for double-type flowers with multiple petal layers, which inherently extend the flowering duration. The complex flower structure with numerous petals and layers is achieved through controlled breeding while maintaining the plant's overall vigor and adaptability.
3Reliability
If existing Catharanthus cultivars are used, then they may have uniform flower colors, but they lack stable purple-violet double-type flowers
Solution Approach 1:
The patent stabilizes specific color and form parameters through breeding. The purple-violet coloration and double-type flower structure are fixed genetic traits that are reliably transmitted to progeny, achieving consistency in both color and complex form simultaneously.
4Ease of operation
If existing Catharanthus cultivars are used, then they may require complex cultivation regimes, but they lack good garden performance and weather tolerance
Solution Approach 1:
The patent creates a cultivar with universal adaptability to various garden conditions and weather patterns. The plant exhibits multi-functionality by tolerating different temperature ranges, soil types, and cultural practices while maintaining vigorous growth and prolific flowering, reducing the need for specialized cultivation regimes.
Data Source
AI summary
A new and distinct cultivar of Catharanthus plant named ‘Suncatso 23’, characterized by its upright to outwardly spreading and mounding plant habit; vigorous growth habit; freely basal branching habit; freely flowering habit; long flowering period; double-type flowers that are purple violet in color; and good garden performance.