Viola Flovellempl Breeding for Stable Traits and Flower Size
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Solution Overview
Problem
There is a need for new Viola cultivars with outwardly spreading habits, large flowers, and attractive flower coloration that can reproduce stably and true to type, as existing cultivars may vary significantly with environmental conditions and lack desired traits like early flowering and long flowering periods.
Innovation Solution
The development of Viola×williamsii 'Flovellempl' through planned breeding, combining traits such as mounding and spreading plant habit, early and continuous flowering, and large violet and yellow-colored flowers, achieved through cross-pollination of proprietary selections USAHIL-2 and USABVZ, and stabilized through vegetative cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing Viola cultivars are used, then they may have some desirable traits, but they vary significantly with environmental conditions and lack stable reproduction
Solution Approach 1:
The patent applies preliminary action by conducting controlled cross-pollination in a controlled environment (greenhouse) before field planting. The parental selections were carefully chosen and crossed under controlled conditions, and the resulting progeny were evaluated in controlled environments before asexual reproduction. This preliminary controlled breeding action ensures stable trait inheritance while selecting for environmental adaptability.
Solution Approach 2:
The patent applies parameter changes by manipulating breeding parameters including selecting specific parental genotypes (USAHIL-2 and USABVZ), controlling pollination timing (May 2001), controlling growth environment parameters (greenhouse conditions), and selecting progeny based on specific trait parameters (flower size, color, plant habit). These controlled parameter changes resulted in a cultivar with stable traits that reproduces true to type through asexual propagation.
2Area of moving object
If Viola cultivars with large flowers are selected, then flower size increases, but flowering period may be shortened
Solution Approach 1:
The patent applies merging by combining multiple desirable traits from different parental selections into a single cultivar. The female parent (USAHIL-2) contributed blue flower color and the male parent (USABVZ) contributed yellow flower color, while both parents contributed to the mounding spreading habit. The resulting cultivar 'Flovellempl' merges these traits with large flower size (3.0-3.5 cm diameter) and extended flowering period (8-10 weeks), achieving a combination that neither parent possessed alone.
3Length of moving object
If Viola cultivars with upright growth habit are selected, then plant height increases, but outwardly spreading habit is reduced
Solution Approach 1:
The patent applies local quality by specifying particular growth habit characteristics rather than overall plant size. The cultivar 'Flovellempl' exhibits mounding and outwardly spreading habit with lateral branching, creating a specific local growth pattern that differs from upright growth. The plant achieves approximately 10-15 cm height with a 20-25 cm spread, creating a compact mounding form rather than tall upright growth, which is locally optimized for ground cover applications.
Data Source
AI summary
A new and distinct cultivar of Viola plant named ‘Flovellempl’, characterized by its mounding and outwardly spreading plant habit; freely branching habit; early and freely flowering habit; long flowering period; and large violet and yellow-colored flowers.