Spineless Ilex Hedge with Persistent Red Berries
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Solution Overview
Problem
There is a need for a spine-free, consumer-friendly evergreen holly cultivar that displays attractive red fruit throughout winter and is suitable for landscape use or hedges, with existing cultivars either having spiny leaves or less vigorous growth habits.
Innovation Solution
The development of 'Screen Play', a new cultivar of Ilex integra×latifolia, characterized by a well-branched, dense, upright habit, glossy spineless leaves, vigorous growth, and persistent deep red berries, achieved through asexual propagation using semi-soft wood cuttings, which is stable across generations and exhibits cold tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional holly cultivars are used, then evergreen foliage and red fruit are achieved, but spiny leaves make them unsuitable for consumer-friendly landscape use
Solution Approach 1:
The invention extracts and eliminates the harmful spiny characteristic from the holly plant while retaining the desirable evergreen foliage and red fruit. The cultivar 'Screen Play' was selected specifically for its naturally occurring spineless mutation, removing the harmful element (spines) while preserving the beneficial properties (evergreen leaves, red berries).
2Productivity
If existing spine-free holly cultivars are used, then consumer-friendliness is improved, but growth vigor and density are reduced
Solution Approach 1:
The invention changes the genetic parameters of the holly plant to achieve both spine-free leaves and vigorous growth. Through selective breeding and asexual propagation of the mutant cultivar, the plant exhibits enhanced growth vigor (1.5-2.0 feet per year) and dense branching while maintaining the spineless characteristic, thus improving both productivity and ease of operation simultaneously.
3Adaptability or versatility
If dense branching is achieved for hedge use, then privacy screen capability is improved, but plant complexity increases
Solution Approach 1:
The plant exhibits natural segmentation through its dense branching pattern, creating multiple vertical and horizontal planes that form an effective privacy screen. The well-branched structure divides the plant into numerous smaller branches and foliage segments, providing density and privacy while maintaining a manageable overall form suitable for hedging.
Data Source
AI summary
A new cultivar of Ilex plant named ‘Screen Play’, that is characterized by its well-branched, dense, upright plant habit with suitablity for use as a hedge or privacy screen, its vigourous growth habit with plants growing an average of 1.5 m per year in Georgia when young, its large leaves that emerge light green tinged with bronze in color and maturing to a deep green color, its leaves that are glossy and spineless with very finely serrated margins, its berries that ripen to a deep red color in early fall and persist on the plant through the winter, its cold tolerance; remaining evergreen in U.S.D.A Zone 7, and its ease of pollination by ambient pollen when grown in Georgia.