Petunia Dopetsunpepu Cultivar with Semi-Trailing Habit and Unique Flower Color
Solution Overview
Problem
There is a need for new Petunia cultivars with attractive flowers that offer a distinct semi-mounding to semi-trailing habit, vigorous growth, early and continuous flowering, and specific flower colors not found in existing varieties like 'Duesunelapr', 'Duesunpkmorn', 'Duesunrose', 'Duesunvan', and 'Dancalipet'.
Innovation Solution
The development of the Petunia plant cultivar 'Dopetsunpepu' with a semi-mounding to semi-trailing habit, moderately vigorous growth, freely branching, and flowers that are red-purple and pale yellow to white, which differs significantly in flower color from existing cultivars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If new Petunia cultivars are developed with distinct semi-mounding to semi-trailing habit and vigorous growth, then plant habit and growth performance are improved, but breeding complexity and time required increase
Solution Approach 1:
The breeding program utilizes naturally occurring whole plant mutations that arise spontaneously in the parent selection population. The mutation selected (code number TT-0814) occurred naturally without artificial induction, allowing the breeding process to leverage self-generated genetic variation rather than requiring complex mutation induction equipment or procedures.
Solution Approach 2:
The invention achieves distinct plant habit by selecting for specific phenotypic parameters including semi-mounding to semi-trailing growth form, freely branching habit, and moderate to vigorous growth rate. These parameter changes are fixed through asexual reproduction to stabilize the novel plant habit while maintaining breeding efficiency.
2Productivity
If Petunia cultivars are bred for early and continuous flowering with numerous flowers, then flowering performance and productivity are improved, but genetic stability and reproduction fidelity may be compromised
Solution Approach 1:
The high flowering performance trait is captured through a naturally occurring mutation that combines multiple beneficial characteristics including early flowering, continuous blooming, and numerous flowers per plant. The asexual reproduction method preserves this complex trait combination without requiring additional genetic manipulation, maintaining both productivity and genetic stability.
Solution Approach 2:
Instead of using complex genetic engineering or hybridization to achieve early and continuous flowering, the invention inverts the approach by selecting for a naturally occurring mutation that already exhibits these desirable flowering traits. This reverse approach simplifies the breeding process while maintaining genetic stability through true-to-type asexual reproduction.
3Ease of manufacture
If Petunia cultivars are developed with unique flower colors not found in existing varieties, then aesthetic appeal and market differentiation are improved, but breeding precision and color consistency become more difficult to achieve
Solution Approach 1:
The invention achieves unique flower color parameters including red-purple and pale yellow to white coloration that distinguishes this cultivar from existing varieties. The naturally occurring mutation provides stable color expression that is faithfully reproduced through asexual propagation, ensuring color consistency while maintaining aesthetic appeal.
Solution Approach 2:
The novel flower color trait arises through natural mutation rather than artificial color induction techniques. This self-generated color variation is then selected and stabilized through asexual reproduction, achieving both unique aesthetics and color consistency without requiring complex breeding interventions or precision control mechanisms.
4Stability of the object's composition
If Petunia plants are propagated asexually to maintain stable characteristics, then genetic fidelity and trait consistency are improved, but genetic diversity and adaptability are reduced
Solution Approach 1:
The breeding program performs preliminary selection of a naturally occurring mutation (TT-0814) that combines multiple desirable traits including novel plant habit, vigorous growth, early continuous flowering, and unique flower color. By selecting this pre-adapted genotype before propagation, the program ensures both trait consistency through asexual reproduction and inherent adaptability captured in the original mutation.
Solution Approach 2:
The naturally occurring mutation introduces novel parameter combinations for plant habit (semi-mounding to semi-trailing), growth rate (moderate to vigorous), flowering pattern (early and continuous), and flower color (red-purple and pale yellow to white). These parameter changes are fixed through asexual propagation, achieving trait consistency while the underlying genetic variation provides adaptability.
Data Source
AI summary
A new and distinct cultivar of Petunia plant named ‘Dopetsunpepu’, characterized by its semi-mounding to semi-trailing plant habit; moderately vigorous to vigorous growth habit; freely branching habit; early and freely flowering habit; flowers that are red purple and pale yellow to white in color; and good garden performance.