Jong2 Cherry Laurel Plant Winter Hardiness
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Solution Overview
Problem
There is a need for a new and distinct variety of cherry laurel plant (Prunus laurocerasus) that exhibits winter hardiness, healthy growth, and a compact bushy habit, which existing varieties may not consistently provide under varying temperature conditions.
Innovation Solution
The 'Jong2' variety, developed through open-pollination and subsequent vegetative propagation via softwood cuttings, demonstrates these characteristics, including high temperature tolerance and low temperature hardiness, with specific botanical and horticultural traits such as moderate growth rate, strong branches, and glossy foliage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing cherry laurel varieties are grown under varying temperature conditions, then they may exhibit poor winter hardiness and inconsistent growth, but selecting and propagating a specific variety ('Jong2') through controlled open-pollination and vegetative propagation achieves reliable winter hardiness and consistent healthy growth
Solution Approach 1:
The patent applies preliminary action by conducting controlled open-pollination in 2006 between selected Prunus laurocerasus plants to produce seeds, which were then sown and evaluated outdoors. The superior plant 'Jong2' was selected in May 2007 and vegetatively propagated by softwood cuttings in October 2007. This preliminary breeding and selection process established the reliable winter hardiness and consistent growth characteristics that define the variety, resolving the contradiction between reliability and variety selection by pre-establishing the desired traits through controlled reproduction.
2Productivity
If a cherry laurel variety exhibits rapid growth, then it reaches maturity faster, but it may develop a less compact and bushy habit
Solution Approach 1:
The patent applies parameter changes by selecting and propagating plant 'Jong2' which exhibits a specific growth rate of about 25.0 cm per season as a pot-grown young plant. This growth rate parameter produces a broad upright habit with an average plant height of 54.0 cm and diameter of 52.8 cm, creating a compact and bushy appearance. The vegetative propagation through softwood cuttings ensures these growth parameters are consistently reproduced, resolving the contradiction between productivity and plant habit by optimizing the growth rate to produce the desired compact shape.
3Ease of operation
If cherry laurel plants are grown in containers, then they can be easily managed and transported, but they require specific container sizes and longer time to produce finished plants
Solution Approach 1:
The patent applies preliminary action by establishing the optimal container size (1.5 liter containers and larger) and growth conditions during the vegetative propagation phase in October 2007. The selected plant 'Jong2' was propagated by softwood cuttings and grown in appropriate containers from the beginning, allowing it to reach finished plant status in about 2.5 years. This preliminary establishment of proper growing conditions resolves the contradiction between ease of operation and time investment by optimizing container management practices.
Data Source
AI summary
A new cherry laurel plant particularly distinguished by being winter hardy, having healthy growth, and a compact and bushy habit, is disclosed.