Catharanthus Suncatha 2243 Basal Branching and Prolonged Bloom
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Solution Overview
Problem
Current Catharanthus roseus cultivars lack vigorous, upright growth with abundant basal branching and prolonged blooming of red-pink, irregularly incised flowers, which are desirable traits for flower bedding and potting.
Innovation Solution
The development of the new Catharanthus cultivar 'Suncatha 2243' through cross-pollination of proprietary strains 'MC21-52' and 'MC21-5', resulting in a plant with vigorous, upright growth, abundant basal branching, and a profusion of single, red-pink flowers with irregularly incised petals that remain in bloom for an extended period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional Catharanthus roseus cultivars are used, then they can be grown for flower bedding and potting, but they lack vigorous upright growth with abundant basal branching and prolonged blooming of red-pink flowers
Solution Approach 1:
The patent applies parameter changes by cross-breeding parent plants with different genetic parameters to produce offspring with improved characteristics. Specifically, the breeding process combined traits for upright growth habit, basal branching pattern, red-pink flower color, and extended blooming duration, resulting in a cultivar that simultaneously optimizes multiple parameters that were previously separate or conflicting in conventional varieties.
2Reliability
If cross-pollination of proprietary strains is conducted to achieve unique characteristics, then new cultivar with vigorous growth and prolonged flowering is obtained, but the breeding process requires multiple generations and validation time
Solution Approach 1:
The patent applies preliminary action by conducting systematic preliminary breeding operations and multi-generational validation processes before commercial release. The breeder performed cross-pollination, then systematically evaluated F1, F2, and subsequent generations for trait stability, uniformity, and expression consistency. This preliminary validation ensured the new cultivar's reliability and stability before propagation, preventing future variability issues.
3Stability of the object's composition
If the new cultivar is propagated asexually by cuttings, then homogeneity and stability are confirmed, but the propagation process requires controlled environmental conditions and time for root development
Solution Approach 1:
The patent applies self-service by utilizing the plant's own vegetative propagation capability through stem cuttings. The cutting propagation method leverages the plant's natural ability to develop roots from stem tissue, allowing asexual reproduction that maintains genetic homogeneity. This self-service propagation approach ensures clonal fidelity and genetic stability while being relatively simple to execute with proper environmental control.
Data Source
AI summary
Disclosed herein is a new and distinct variety of Catharanthus plant having vigorous, upright plant characteristics, abundant branching, especially basally branching, developed from the base of the plant throughout the growing season, great profusion of single, red-pink flowers, the whole bush remaining in bloom for a considerable period of time and deeply bitten petals, shaped of hastate, incurvated.