Coprosma NGCOP7 Cultivar Mutation Propagation
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Solution Overview
Problem
There is a need for new ornamental perennial Coprosma cultivars with distinct characteristics that differ from existing varieties like 'Tequila Sunrise' and 'Scarlett O'Hara', offering unique foliage colors and growth habits for enhanced horticultural diversity.
Innovation Solution
The development of the Coprosma repens cultivar 'NGCOP7', which exhibits a compact, glossy-leaved, freely branching habit with green leaves featuring grey-purple and grey-red margins, derived from a naturally occurring branch mutation of 'Tequila Sunrise', allowing for asexual reproduction via tip cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a new Coprosma cultivar is developed with distinct foliage characteristics, then horticultural diversity and ornamental value are improved, but breeding complexity and time required are increased
Solution Approach 1:
The patent utilizes a naturally occurring branch mutation that was discovered in a cultivated area. Instead of creating new variations through complex breeding programs, the inventor identified and propagated an existing mutant branch that exhibited the desired distinctive foliage characteristics (grey-purple tinges and grey-red margins). This copying approach allowed development of a new cultivar 'NGCOP7' with unique features while avoiding the complexity of traditional breeding methods.
2Adaptability or versatility
If a new cultivar is developed through natural mutation, then unique characteristics are achieved, but stability and uniformity across generations must be verified through extensive testing
Solution Approach 1:
The patent implements a systematic feedback verification process to ensure the mutant characteristics are stable and uniform. The inventor performed asexual reproduction by tip cuttings starting in 2014 and conducted careful observation over multiple generations. The feedback mechanism involved comparing the propagated plants against the original mutant branch to verify that the distinctive foliage characteristics (green leaves with grey-purple tinges and grey-red margins) remained consistent. This iterative verification process confirmed the reliability of the new cultivar 'NGCOP7' across successive generations.
Data Source
AI summary
A new cultivar of Coprosma plant named ‘NGCOP7’ that is characterized by a compact habit, glossy leaves and upper side leaves that are green in color with tinges of grey-purple towards the margins and grey-red margins.