Coleus UF15-97-9 Heat Tolerance and Color Stability
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Solution Overview
Problem
Existing coleus cultivars lack heat tolerance and uniform foliage color, especially in varying light conditions, and do not maintain consistent size and growth habit when used as landscape fixtures.
Innovation Solution
The development of the coleus cultivar 'UF15-97-9', which exhibits excellent heat tolerance, uniform crimson lance-shaped leaves, compact upright growth, and superior foliage color stability, achieved through asexual propagation using meristem tip cuttings, retaining these characteristics across different growing conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing coleus cultivars are used, then they can be grown in various conditions, but they lack heat tolerance and foliage color uniformity
Solution Approach 1:
The patent applies parameter changes by selecting and propagating plants with specific genetic traits that confer heat tolerance and uniform crimson foliage color. Through asexual propagation via meristem tip cuttings, the cultivar maintains consistent genetic parameters across generations, ensuring reliable heat tolerance and color uniformity while adapting to various growing conditions.
2Stability of the object's composition
If existing coleus cultivars are used as landscape fixtures, then they can provide greenery, but they do not maintain consistent size and growth habit
Solution Approach 1:
The patent utilizes asexual propagation through meristem tip cuttings to maintain stable genetic parameters for growth habit and plant size. This propagation method ensures that the cultivar 'UF15-97-9' produces uniform plants with consistent mounded habit and size (2-3 feet tall and wide) across different planting conditions, resolving the contradiction between growth stability and environmental adaptability.
3Stability of the object's composition
If asexual propagation is used to maintain cultivar characteristics, then true-to-type plants are produced, but propagation time and effort are required
Solution Approach 1:
The patent employs preliminary action by establishing stock plants that can be repeatedly propagated through meristem tip cuttings. This approach allows for efficient mass propagation while maintaining trait retention, as the stock plants are prepared in advance and can produce multiple propagules quickly, reducing the overall time loss associated with propagation.
Data Source
AI summary
‘UF15-97-9’ is a new coleus plant with novel characteristics that include excellent heat tolerance, uniform crimson leaves that are uniquely lance-shaped, and a vigorous and compact upright growth habit with excellent lateral branching. ‘UF15-97-9’ also exhibits superior foliage color stability when grown in all conditions, including both sun and shade conditions, and exhibits long-season performance until late fall.