Zonal Geranium Cultivar Duesavlicha Breeding
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Solution Overview
Problem
There is a need for new Zonal Geranium cultivars with dark green-colored leaves and attractive flowers that exhibit vigorous growth, robust branching, and consistent flower production, as existing cultivars may vary in performance based on environmental conditions and cultural practices.
Innovation Solution
The development of a new Zonal Geranium cultivar, 'Duesavlicha', resulting from a cross-pollination between proprietary selections of Pelargonium×hortorum, which exhibits an upright to spreading habit, vigorous growth, dark green leaves, and semi-double red-purple flowers, demonstrating stability through asexual reproduction and improved garden performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing Zonal Geranium cultivars are used, then they can be grown under various environmental conditions, but their performance varies and they do not consistently exhibit vigorous growth and dark green leaves
Solution Approach 1:
The patent applies parameter changes by selecting and stabilizing specific phenotypic parameters (dark green leaf color, vigorous growth habit, frequent flowering) through controlled cross-pollination and vegetative propagation. This process fixes these parameters in the new cultivar 'Duesavlicha', making them consistent across different environmental conditions while maintaining adaptability through genetic diversity in the breeding program.
2Reliability
If new cultivars are bred to have dark green leaves and vigorous growth, then aesthetic appeal and garden performance improve, but breeding time and resource investment increase
Solution Approach 1:
The patent applies preliminary action by conducting controlled cross-pollination experiments before final cultivar selection. The inventor performed preliminary breeding work in 2005, discovering the superior traits in the F1 generation, and then invested in systematic vegetative propagation and testing from 2006 onwards. This preliminary action identified the promising lineage early, allowing for targeted resource investment in the final cultivar development.
Solution Approach 2:
The patent applies copying through vegetative terminal cuttings, which allow for rapid multiplication of the selected superior plant without sexual reproduction. This cloning method preserves the stable genetic traits discovered in the breeding program while dramatically reducing the time required to produce large numbers of uniform plants for commercial deployment.
3Adaptability or versatility
If cross-pollination is used to create new cultivars, then genetic diversity and trait combination improve, but control over offspring characteristics becomes more complex
Solution Approach 1:
The patent applies local quality by focusing the cross-pollination strategy on specific parental lines with known desirable traits. The female parent (F-01-1619) provided dark green leaf color and frequent flowering, while the male parent (Z98-1216-1) contributed vigorous growth habit. By selectively combining these localized trait strengths through controlled pollination, the inventor achieved predictable trait inheritance despite the complexity of cross-pollination genetics.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The new cultivar 'Duesavlicha' maintains its unique characteristics across varying environmental conditions and cultural practices, offering improved vigor, branching, and flower size compared to its parents, with good garden performance and tolerance to temperature and weather extremes.
Implementation Method 1
Asexual reproduction of the new Zonal Geranium by vegetative terminal cuttings in a controlled greenhouse environment in Rheinberg, Germany since May, 2006, has shown that the unique features of this new Zonal Geranium are stable and reproduced true to type in successive generations.
Data Source
AI summary
A new and distinct cultivar of Zonal Geranium plant named ‘Duesavlicha’, characterized by its upright to outwardly spreading plant habit; vigorous growth habit; freely basal branching habit; dark green-colored leaves; freely flowering habit; semi-double red purple-colored flowers; and good garden performance.