Echinacea Cultivar Breeding for Compact Dark Red Uniform Growth
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Solution Overview
Problem
Existing Echinacea purpurea cultivars lack distinct characteristics such as compact growth habit, dark red flowers, uniform branching, and fast crop time, which are desirable for horticultural applications.
Innovation Solution
Development of a new Echinacea purpurea cultivar 'BullEchipur 122' with compact growth, dark red flowers, uniform branching, and fast crop time, achieved through controlled cross-breeding and asexual propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional Echinacea purpurea cultivars are used, then they have typical growth habits and flower colors, but they lack compact growth, dark red flowers, uniform branching, and fast crop time
Solution Approach 1:
The patent applies preliminary action by conducting controlled cross-breeding between specifically selected parent plants (Bul 2019-26 and Bul 2019-47) before mass propagation. The breeding program pre-establishes the desired traits (compact growth, dark red flowers, uniform branching) in the cultivar 'BullEchipur 122' through deliberate parental selection and controlled pollination, rather than discovering these traits after random variation occurs. This preliminary genetic programming accelerates the development of fast-cropping varieties with uniform characteristics.
2Reliability
If asexual propagation is used to reproduce the cultivar, then the unique features are stable and reproduced true to type, but the propagation process requires controlled in vitro culture conditions
Solution Approach 1:
The patent applies segmentation by dividing the propagation process into distinct phases: in vitro culture initiation, rooting stage, and acclimatization stage. Each phase occurs in separate controlled environments with optimized conditions (temperature, humidity, lighting, nutrient composition). This segmentation allows precise control over trait expression during critical development windows, ensuring reliable reproduction of compact growth, dark red flower color, and uniform branching while making the complex process manageable through standardized protocols.
3Manufacturing precision
If the new cultivar is compared to existing cultivars like 'Tomato Soup' and parent varieties, then it shows superior compactness, branch uniformity, and flower color, but it requires extensive side-by-side comparisons to demonstrate these differences
Solution Approach 1:
The patent applies color changes as a distinctive marker by selecting for and fixing the dark red flower color (described as N45A in the Royal Horticultural Society Colour Chart) in the new cultivar. This pronounced color differentiation from parent varieties and existing cultivars like 'Tomato Soup' provides an easily observable trait that correlates with the genetically fixed compact growth and uniform branching. The vivid color expression serves as a visual indicator of the cultivar's true-to-type reproduction and genetic stability.
Data Source
AI summary
A new and distinct variety of Echinacea plant named ‘BullEchipur 122’ having dark red colored flowers, compact growth habit, uniform growth habit, and 25 to 35 branches.