Duessplavaur Impatiens Cultivar Breeding for Phenotypic Stability
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Solution Overview
Problem
There is a need for new and distinct cultivars of New Guinea Impatiens plants with attractive flowers and good garden performance, as existing varieties may vary in phenotype with environmental conditions and lack specific desirable traits like compact growth, early flowering, and unique flower colors.
Innovation Solution
A new cultivar, 'Duessplavaur', is developed through a breeding program, characterized by an upright, spreading habit, vigorous growth, dark green leaves, and light lavender flowers with purple centers and margins, differing from existing varieties in flower color and compactness, with stable traits reproduced through terminal vegetative cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing Impatiens varieties are grown under varying environmental conditions, then they may adapt to different temperatures and light levels, but their phenotype varies significantly leading to inconsistent garden performance
Solution Approach 1:
The patent applies parameter changes by selecting and stabilizing specific genetic parameters that control phenotypic traits. The cultivar 'Duessplavaur' was bred to maintain consistent parameters for plant habit (compact, mounding), flowering time (early), and flower color (lavender with purple centers) across varying environmental conditions, resolving the contradiction between adaptability and phenotypic stability
2Stability of the object's composition
If breeding programs focus on creating uniform plants with specific traits, then phenotypic consistency is improved, but the time and resources required for selection and stabilization increase
Solution Approach 1:
The patent applies preliminary action through a structured breeding program that pre-selects parent plants with desirable traits before crossing. The program preliminarily identified and stabilized the unique lavender flower color with purple centers and compact growth habit in 'Duessplavaur' through controlled selection and asexual propagation, reducing the time needed to achieve uniformity compared to traditional breeding methods
3Loss of time
If Impatiens varieties are selected for early flowering, then time to first bloom is reduced, but plant size and overall growth vigor may be compromised
Solution Approach 1:
The patent applies local quality by optimizing specific traits in specific regions of the plant development timeline. The cultivar 'Duessplavaur' exhibits early flowering as a localized trait that occurs without compromising overall plant vigor, growth habit, or productivity. The plant achieves both early bloom and robust growth through selective breeding that allows different parts of the development process to be optimized independently
Data Source
AI summary
A new and distinct cultivar of Impatiens plant named ‘Duessplavaur’ characterized by its upright, outwardly spreading and mounding plant habit; vigorous growth habit; freely branching habit; dark green-colored leaves; early and freely flowering habit; light lavender-colored flowers with purple-colored petal centers and margins and red purple-colored petal bases; and good garden performance.