Petunia Cultivar Breeding for Compact Mounding and Early Flowering
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Solution Overview
Problem
Existing Petunia cultivars lack vigorous, freely-branching, uniformly mounding plants with early and freely flowering habits and attractive flowers, along with good garden performance.
Innovation Solution
A new Petunia cultivar, 'WNPETSMVPC26', developed through controlled cross-pollination, exhibiting compact, upright to somewhat spreading and mounding plant habit, vigorous growth, dense branching, early flowering, and purplish pink flowers with white throats, demonstrating excellent container and garden performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing Petunia cultivars are grown, then they may have larger flowers or more spreading habit, but they lack vigorous growth, free branching, uniform mounding, and early flowering
Solution Approach 1:
The patent applies parameter changes by selecting and breeding for specific quantitative traits including plant height (15-20 cm), diameter (20-25 cm), flowering time (5-7 weeks after planting), and flower diameter (2-3 cm). These parameter specifications transform the plant's growth characteristics to achieve the desired balance between compactness and vigor.
Solution Approach 2:
The new cultivar exhibits multi-functionality by simultaneously providing compact mounding habit, vigorous growth rate, free branching, early flowering, and attractive flowers. This single cultivar fulfills multiple garden performance requirements that previously required multiple different cultivars.
2Shape
If Petunia plants are bred for compact mounding habit, then they achieve uniform shape, but may lose flowering vigor and growth rate
Solution Approach 1:
The patent specifies precise parameter ranges to achieve compact mounding while maintaining productivity: plant height of 15-20 cm with diameter of 20-25 cm creates the mounding shape, while simultaneously requiring 5-7 weeks to first flower and continuous flowering thereafter to maintain vigor.
Solution Approach 2:
The cultivar combines genetic traits from two parent cultivars ('BHTUN98901' and 'BBTUN91601M2') to create a composite genetic material that integrates both compact growth habit and vigorous flowering characteristics that neither parent possessed alone.
3Loss of time
If Petunia plants are bred for early flowering, then they achieve rapid bloom, but may compromise plant size and structural development
Solution Approach 1:
The patent establishes parameter specifications that resolve this contradiction: time to first flower is set at 5-7 weeks (early flowering), while plant height is maintained at 15-20 cm and diameter at 20-25 cm (adequate size). This demonstrates that early flowering and proper plant development can coexist within defined parameter ranges.
Data Source
AI summary
A new and distinct Petunia plant named ‘WNPETSMVPC26’, characterized by its relatively compact, upright to somewhat outwardly spreading and mounding plant habit; vigorous growth habit and rapid growth rate; freely branching habit; dense and bushy plant form; early and freely flowering habit; single-type flowers that are purplish pink in color with white-colored throats; and excellent container and garden performance.