Upright Syringa Patula Cultivar for Hedging
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Solution Overview
Problem
Current lilac cultivars lack an upright habit, robust rooting ability, and sufficient resistance to root rot and powdery mildew, limiting their use as effective hedging plants with desirable ornamental characteristics.
Innovation Solution
The development of 'JN Upright Select', a new Syringa patula cultivar with an upright plant habit, large fragrant inflorescences, good rooting from softwood stem cuttings, cold hardiness, and resistance to root rot and powdery mildew, achieved through selective breeding and asexual propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional lilac cultivars are used, then they have basic ornamental value, but they lack upright habit and sufficient disease resistance for effective hedging
Solution Approach 1:
The patent applies parameter changes by selectively breeding for specific traits including upright growth habit, disease resistance, and flowering characteristics. The breeding program modified the genetic parameters of Syringa patula to produce cultivars with improved hedging suitability while maintaining ornamental value.
2Adaptability or versatility
If lilac cultivars are bred for upright habit and disease resistance, then hedging suitability improves, but breeding complexity and time increase
Solution Approach 1:
The patent applies preliminary action by conducting extensive preliminary breeding work over multiple years to establish stable lines with desired traits. The breeding program performed preliminary selections and propagations to create cultivars that consistently exhibit upright habit and disease resistance, reducing future breeding complexity.
3Stability of the object's composition
If asexual propagation is used to maintain true-to-type characteristics, then cultivar stability is improved, but propagation time and resource requirements increase
Solution Approach 1:
The patent applies copying through asexual propagation methods including softwood cuttings and tissue culture to create genetically identical copies of the selected cultivars. This ensures true-to-type characteristics are maintained while efficiently producing large numbers of plants for distribution and planting.
Data Source
AI summary
A new cultivar of Syringa patula plant named ‘JN Upright Select’ that is characterized by its upright plant habit, its large, fragrant inflorescences that are light violet in color, its good rooting habit as it readily roots from softwood stem cuttings, its good cold hardiness with hardiness at least to U.S.D.A. 3b even as young plants, its fall foliage that is reddish purple and yellow in center in most seasons in southern Wisconsin, and its good production characteristics, and its moderate resistance to root rot and good resistance to powdery mildew.