Petunia SAKPET098 Star-Patterned Flower Trait Stability
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Solution Overview
Problem
There is a need for a new and distinct variety of Petunia hybrida that exhibits stable and reproducible traits, particularly in flower color and plant habit, which existing petunia varieties fail to consistently provide.
Innovation Solution
The development of the Petunia hybrida variety 'SAKPET098' through hybridization of proprietary lines '9BCR-49a' and '9BCR-27-V2', resulting in reddish-purple and white star-patterned flowers and a semi-mounding plant habit, which is stable across successive generations of asexual propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing petunia varieties are used, then cultivation is straightforward, but stable and reproducible flower color and plant habit traits are not consistently provided
Solution Approach 1:
The patent applies preliminary action by performing multiple generations of selective breeding and evaluation before the variety is ready for commercial propagation. The breeders conducted systematic selection across F1, F2, and subsequent generations, evaluating plants for stable inheritance of flower color patterns and plant habit traits. This preliminary selective breeding process ensured that the final variety 'SAKPET098' would reliably reproduce its distinctive reddish-purple and white star-patterned flowers and semi-mounding habit in commercial production.
2Reliability
If hybridization of proprietary lines is performed, then stable and reproducible traits are achieved, but the breeding process becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the breeding process into distinct generational stages (F1, F2, and subsequent generations) with specific selection criteria for each stage. The F1 generation was evaluated for initial trait expression, the F2 generation for segregation patterns, and later generations for stabilization of desired traits. This segmented approach to multi-generational breeding allowed the complex hybridization process to be systematically managed while achieving reliable trait reproducibility in the final variety.
3Reliability
If selective breeding across multiple generations is conducted, then stable flower color and plant habit are achieved, but time and resources are increased
Solution Approach 1:
The patent applies feedback by implementing continuous evaluation and selection across multiple generations of the breeding program. Each generation was assessed for the presence and stability of desired traits (reddish-purple and white star-patterned flowers, semi-mounding habit), and only plants demonstrating the target phenotype were selected for further propagation. This feedback-driven selection process enabled the breeders to efficiently track trait inheritance patterns and make informed decisions about which plants to advance, thereby achieving reliable flower color stability while managing the time investment through systematic rather than random selection.
Data Source
AI summary
A petunia plant particularly distinguished by having a reddish-purple and white star-patterned flower color and green leaves, is disclosed.