Pelargonium Duevimari Cultivar Breeding for Vigor and Stress Resistance
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Solution Overview
Problem
Existing Zonal Geranium cultivars lack vigorous growth and attractive, long-lasting flowers, and are sensitive to environmental stress.
Innovation Solution
A new cultivar, 'Duevimari', resulting from a cross-pollination between proprietary selections of Pelargonium zonale, exhibiting upright habit, vigorous growth, basal branching, and large red-purple semi-double flowers, with improved leaf durability and garden performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing Zonal Geranium cultivars are grown, then they can be cultivated, but they lack vigorous growth and are sensitive to environmental stress
Solution Approach 1:
The patent applies parameter changes by creating a new cultivar 'Duevimari' with genetically altered characteristics that simultaneously improve stress resistance and growth vigor. The breeding program selected for specific phenotypic parameters including upright habit, vigorous growth, and enhanced stress tolerance, resulting in a cultivar that exceeds parent selections in both reliability and productivity parameters.
2Duration of action of stationary object
If existing Zonal Geranium cultivars are grown, then they can produce flowers, but the flowers are not sufficiently attractive or long-lasting
Solution Approach 1:
The patent applies parameter changes by breeding for specific floral characteristics including large red-purple semi-double flowers with enhanced longevity. The new cultivar 'Duevimari' exhibits flowers that are both more attractive (larger size, vibrant color) and longer-lasting compared to existing cultivars, resolving the contradiction between aesthetic quality and duration.
3Reliability
If new cultivar 'Duevimari' is developed, then vigorous growth and stress resistance are improved, but breeding complexity increases
Solution Approach 1:
The patent applies self-service by utilizing natural cross-pollination and vegetative propagation mechanisms to achieve breeding objectives. The controlled greenhouse environment allowed natural processes to occur while monitoring outcomes, and the cultivar's true-to-type reproduction through vegetative cuttings simplifies subsequent propagation without requiring complex intervention systems.
Data Source
AI summary
A new and distinct cultivar of Zonal Geranium plant named ‘Duevimari’, characterized by its upright plant habit; vigorous growth habit; freely basal branching habit; freely flowering habit; large red purple-colored semi-double flowers; and good garden performance.