Petunia PEHY0040 Cultivar Breeding via Controlled Hybridization
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Solution Overview
Problem
There is a need for a new Petunia hybrida cultivar with specific characteristics such as small-sized white flowers and a trailing plant habit that are not currently available in the market, which can be reliably reproduced and maintained through asexual reproduction while being adaptable to varying environmental conditions.
Innovation Solution
The development of the Petunia hybrida cultivar 'PEHY0040' through controlled hybridization, which combines traits like medium to late flowering, semi-trailing habit, and fine fibrous branching, and is propagated via vegetative cuttings to ensure consistent characteristics across generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If controlled hybridization is used to create new cultivar characteristics, then distinct and adaptable Petunia variety is achieved, but time for breeding and selection is extended
Solution Approach 1:
The patent applies preliminary action by conducting controlled hybridization between specifically selected parent lines ('N3612-2' and 'N1495-9') with predetermined desirable traits before the actual breeding process. The parent lines were pre-characterized for flower color, plant habit, and flowering time, allowing the breeder to predict and direct the outcome of the cross toward achieving white flowers with trailing habit and medium-to-late flowering, thus reducing the time needed for subsequent selection.
2Stability of the object's composition
If asexual reproduction is used to propagate the cultivar, then consistent characteristics are retained across generations, but genetic diversity is reduced
Solution Approach 1:
The patent applies copying through vegetative propagation methods (cuttings, division, or tissue culture) to reproduce the new cultivar 'PEHY0040'. This allows the creation of multiple identical copies of the selected plant, ensuring that the distinctive combination of white flowers, trailing habit, and medium-to-late flowering is perfectly replicated across generations without genetic variation, thus maintaining stability of the cultivar's composition.
3Adaptability or versatility
If phenotypic variation is allowed under different environmental conditions, then adaptability to varying environments is improved, but prediction of consistent traits becomes difficult
Solution Approach 1:
The patent applies parameter changes by systematically evaluating the cultivar's performance across different environmental parameters (temperature, light intensity, day length, humidity) during the breeding and testing process. This allows the breeder to understand how phenotypic traits respond to environmental variations and to select for genotypes that maintain desirable characteristics across a range of conditions, thus balancing adaptability with predictable performance.
Data Source
AI summary
A new Petunia plant named ‘PEHY0040’ particularly distinguished by its small sized, white flowers, medium to late flowering and a trailing plant habit.