Panicum ‘Blue Lime’ Cultivar With Upright Habit and Lasting Glume Color
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Solution Overview
Problem
Existing ornamental grass cultivars lack novel traits adapted to the upper Midwest climate, particularly in terms of panicle abundance, glume color retention, and upright plant habit, which are essential for aesthetic appeal and stability in landscaping.
Innovation Solution
Development of a new Panicum hybrid cultivar named 'Blue Lime', derived from controlled breeding, exhibiting large, wispy panicles with golden yellow-green glumes lasting longer, an upright vase-shaped habit, and resistance to lodging, through asexual propagation by rhizome division.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional ornamental grass cultivars are used, then they are available for landscaping, but they lack novel ornamental traits and have poor adaptation to upper Midwest climate
Solution Approach 1:
The patent applies parameter changes by developing a new cultivar with specific genetic parameters that optimize both climate adaptation and aesthetic traits. The 'Blue Lime' cultivar exhibits unique parameters including golden yellow-green glume color retention, upright vase-shaped habit, and resistance to lodging, which were bred to simultaneously achieve climate adaptability and aesthetic reliability in the upper Midwest region
2Duration of action of stationary object
If Panicum cultivars with longer glume color retention are developed, then ornamental value is improved, but plant stability and resistance to lodging may be compromised
Solution Approach 1:
The patent applies local quality by differentiating traits between various plant parts. The 'Blue Lime' cultivar exhibits localized characteristics where the glumes maintain golden yellow-green color for 1-2 weeks longer than other Panicum cultivars, while the stems simultaneously develop upright vase-shaped habit and lodging resistance. This principle allows different parts of the plant to optimize different functions without compromise
3Stability of the object's composition
If Panicum cultivars with upright vase-shaped habit are developed, then landscape stability is improved, but panicle abundance and ornamental features may be reduced
Solution Approach 1:
The patent applies composite materials by combining multiple desirable traits into a single integrated cultivar. The 'Blue Lime' cultivar synthesizes upright vase-shaped habit for stability with abundant large wispy panicles for ornamental value, along with extended glume color retention. This composite approach creates a unified plant that simultaneously achieves structural stability and high panicle abundance that would be difficult to obtain by optimizing single traits separately
Data Source
AI summary
A new cultivar of Panicum plant named ‘Blue Lime’ that is characterized by its abundant panicles that are large, and airy, its inflorescences with unique glumes that retain their golden yellow-green color 1 to 2 weeks later in the season compared to what is typical for Panicum cultivars known to the inventor, and its upright, vase-shaped plant habit with no lodging or splaying stems.