Begonia KRELARE02 Compact Breeding for Longevity
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Solution Overview
Problem
Existing Begonia cultivars lack compact, freely branching plants with attractive flower color and excellent post-production longevity, which are stable across varying environmental conditions.
Innovation Solution
The development of Begonia x hiemalis 'KRELARE02' through controlled cross-pollination between a proprietary Begonia x tuberhybrida hybrid and Begonia socotrana, resulting in a compact, upright, freely branching plant with dark green leaves and red, double-type flowers that maintain longevity and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If existing Begonia cultivars are used, then flower production is maintained, but post-production longevity is insufficient
Solution Approach 1:
The patent applies parameter changes by selecting and breeding Begonia plants with specific genetic parameters that confer both longevity and productivity. The cultivar 'KRELARE02' was developed through controlled cross-pollination of specific parent lines (KV10K1804-003 and S00) to achieve optimal genetic composition that maintains high flower production while extending post-production longevity to over 40 days.
2Length of moving object
If plant size is increased to improve branching, then freely branching habit is achieved, but compactness is reduced
Solution Approach 1:
The patent utilizes parameter changes in plant morphology through selective breeding. The cultivar 'KRELARE02' exhibits a compact height of approximately 25.7 cm while maintaining a freely branching habit with about four primary branches and two secondary branches per plant. This optimal parameter combination achieves both compactness and branching freedom through controlled genetic selection.
3Area of stationary object
If flower size is increased for better appearance, then attractive flower color is achieved, but double-type flower structure is lost
Solution Approach 1:
The patent applies parameter changes in flower morphology through controlled cross-pollination. The cultivar 'KRELARE02' produces double-type flowers with approximately 4-5 tepals and numerous tepaloids, creating a complex flower structure that is smaller (about 5.2 cm diameter) but highly attractive. The double-type structure is maintained through specific genetic inheritance from the parent lines.
4Adaptability or versatility
If environmental adaptability is improved, then phenotypic stability is achieved, but genetic diversity is reduced
Solution Approach 1:
The patent applies universality by developing a cultivar with broad environmental adaptability that maintains consistent phenotypic expression across different growing conditions. The cultivar 'KRELARE02' has been observed to maintain its characteristic compact form, branching habit, and flower properties under varying temperature, daylength, and light intensity conditions, demonstrating multi-functional adaptability while preserving phenotypic stability.
Data Source
AI summary
A new and distinct cultivar of Begonia plant named ‘KRELARE02’ characterized by its compact, upright to outwardly spreading and mounded plant habit; moderately vigorous growth habit; freely branching habit; dark green-colored leaves; freely flowering habit; relatively small double-type flowers that are red in color and held above and beyond the foliar plane; and excellent postproduction longevity.