Petunia USTUN3003 Cultivar Breeding for Dark Flower Color
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Solution Overview
Problem
There is a need for new Petunia cultivars with improved characteristics such as early and free-flowering habits, unique flower colors, and enhanced garden performance, which existing cultivars like 'Black Velvet', 'USTUNI8902', 'Crazytunia Black Mamba', and 'Black Magic' do not fully meet.
Innovation Solution
The development of a new Petunia×hybrida cultivar 'USTUN3003' through cross-pollination between Petunia×hybrida 'Black Velvet' and 'USTUNI8902', resulting in a plant with an upright and spreading habit, vigorous growth, dark reddish-black flowers, and superior garden performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cross-pollination is performed between existing Petunia cultivars to create new varieties, then unique flower colors and improved garden performance are achieved, but the breeding process requires extensive time and multiple generations of selection
Solution Approach 1:
The patent applies preliminary action by pre-selecting parent plants with desirable traits (early flowering, vigorous growth, unique colors) before cross-pollination. The breeding program systematically evaluates and selects parent cultivars such as 'Black Velvet' and 'USTUNI8902' to ensure the F1 generation inherits superior characteristics, thereby reducing the time needed for multiple generations of selection.
2Productivity
If selection is made for early and free-flowering habit, then flowering performance is improved, but plant habit and growth pattern may become less uniform
Solution Approach 1:
The patent applies local quality by selecting for specific localized traits in different parts of the plant. Early-flowering buds and vigorous lateral branching are selected as distinct local characteristics while maintaining overall plant uniformity. This allows the cultivar to exhibit both early flowering and consistent mounding habit throughout the plant population.
3Reliability
If dark reddish-black flower color is selected, then unique and attractive flowers are achieved, but color consistency across different environmental conditions becomes difficult to maintain
Solution Approach 1:
The patent applies feedback by systematically evaluating flower color across multiple environmental conditions during the breeding process. Plants are grown in different locations (Higashiomi, Shiga and Bonsall, Calif.) and lighting conditions, with color assessments fed back into the selection process. This ensures the dark reddish-black color is genetically stable and expresses consistently regardless of environmental variations.
Data Source
AI summary
A new and distinct Petunia plant named ‘USTUN3003’, characterized by its upright and outwardly spreading to trailing plant habit; freely branching habit; vigorous growth habit; early and freely flowering habit; dark reddish black-colored flowers; and good garden performance.