HOGY Ilex Cultivar Compact Mounded Habit
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Solution Overview
Problem
There is a need for a distinct cultivar of Ilex vomitoria that offers a compact, upright, and densely bushy growth habit with yellowish green-colored leaves, differing from existing varieties in vigor and leaf color, while maintaining stability through asexual reproduction.
Innovation Solution
A naturally occurring branch mutation of Ilex vomitoria 'Nana' identified as 'HOGY', which exhibits a compact, uniformly mounded habit, denser growth, and yellowish green leaves, reproduced through semi-hardwood and hardwood stem cuttings, demonstrating stability and unique characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a naturally occurring branch mutation is selected for compactness and uniformity, then plant form and growth habit are improved, but vigor is reduced
Solution Approach 1:
The patent applies parameter changes by selecting for specific morphological parameters (compactness, uniformity, mounded habit) while accepting changes in vigor parameters. This natural mutation represents a shift in the plant's growth parameters that achieves the desired compact form with acceptable vigor levels for ornamental purposes.
2Ease of manufacture
If yellowish green leaf color is selected, then aesthetic appearance is improved, but genetic stability must be maintained through asexual reproduction
Solution Approach 1:
The patent employs copying through asexual reproduction methods (semi-hardwood and hardwood stem cuttings) to replicate the unique yellowish green leaf color phenotype. This ensures genetic stability and true-to-type reproduction of the desired aesthetic characteristic across multiple generations without the variability introduced by sexual reproduction.
3Quantity of substance
If compact growth habit is achieved through natural mutation, then plant density is improved, but adaptation to varying environmental conditions must be maintained
Solution Approach 1:
The patent demonstrates self-service by showing that the compact mutant plant maintains its own adaptability to varying environmental conditions without requiring external intervention. The plant successfully adapts to different temperatures and light intensities while maintaining its compact growth habit, proving that the mutation does not compromise environmental tolerance.
Data Source
AI summary
A new and distinct cultivar of Ilex plant named ‘HOGY’, characterized by its compact, upright and outwardly spreading plant form; uniformly mounded habit; dense and bushy growth habit; yellowish green-colored leaves; and good garden performance.