Echeveria Apus Cultivar Breeding for Distinct Leaf and Flower Traits
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Solution Overview
Problem
There is a need for a new and distinct cultivar of Echeveria plants that exhibits specific grey-green leaves with grey-red margins and tips, compact habit, and yellow flowers, which are not currently available in existing varieties.
Innovation Solution
The development of the Echeveria cultivar 'Apus', resulting from the crossing of an unnamed proprietary Echeveria pulidonis and E. elegans cultivars, which displays unique leaf characteristics, compact growth, and yellow flowering, distinguishable from other Echeveria varieties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing Echeveria varieties are used, then available varieties are limited, but no variety exhibits the specific combination of grey-green leaves with grey-red margins and tips, compact habit, and yellow flowers
Solution Approach 1:
The patent applies parameter changes by selectively breeding and crossing Echeveria pulidonis and E. elegans cultivars to achieve specific phenotypic parameters: grey-green leaf coloration, grey-red margins and tips, compact growth habit, and yellow flowers. The controlled cross-breeding process modifies genetic parameters to produce a distinct cultivar with predetermined characteristic values that differentiate it from parent varieties.
2Productivity
If leaf cuttings are used for asexual reproduction, then propagation is achieved, but trait uniformity and stability must be maintained across generations
Solution Approach 1:
The patent applies self-service by demonstrating that the Echeveria 'Apus' cultivar propagates true to type through asexual reproduction via leaf cuttings. The plant's genetic composition remains stable across generations, allowing the cultivar to reproduce its distinctive traits (grey-green leaves with grey-red margins, compact habit, yellow flowers) without degradation or variation, thereby maintaining trait uniformity while achieving efficient propagation.
3Manufacturing precision
If the cultivar is distinguished from parent plants, then unique characteristics are achieved, but differentiation from closest comparison cultivar 'Sagitta' must be maintained
Solution Approach 1:
The patent applies local quality by identifying and emphasizing specific local characteristics that distinguish Echeveria 'Apus' from its parent cultivars and the closest comparison cultivar 'Sagitta'. Key differentiating features include thicker leaves with more rounded tips, greener leaf coloration compared to 'Sagitta', and specific grey-red margin patterns. These localized trait variations create clear phenotypic boundaries that maintain variety differentiation while achieving unique characteristics.
Data Source
AI summary
A new cultivar of Echeveria plant named ‘Apus’ that is characterized by grey-green leaves with grey-red margins and tips, a compact habit and yellow flowers.