Nerium Juwel Cultivar Stem Strength and Cold Tolerance
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Solution Overview
Problem
Existing Nerium oleander cultivars face challenges with stem bending under flower weight, limited temperature tolerance, and less vigorous growth, which affects their commercial viability as potted plants.
Innovation Solution
The development of the 'Juwel' cultivar, resulting from a breeding program that combines strong and thick branches, dense foliage, dark pink flowers, and low temperature tolerance, achieved through open-pollination and asexual reproduction, addressing the issues of stem strength and temperature resilience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional Nerium oleander cultivars are used, then they produce numerous attractive flowers, but the stems bend under the weight of the flowers
Solution Approach 1:
The patent applies parameter changes by selecting and breeding plants with modified stem physical properties. The 'Juwel' cultivar exhibits increased stem thickness and structural strength parameters compared to traditional cultivars, allowing the stem to support the weight of numerous flowers without bending. This was achieved through controlled breeding programs that selected for enhanced mechanical strength parameters while maintaining flowering quantity.
2Productivity
If traditional Nerium oleander cultivars are used, then they grow moderately, but they have limited temperature tolerance
Solution Approach 1:
The patent merges two desirable trait sets by crossing different Nerium oleander cultivars. The breeding program combined the vigorous growth characteristics of one parent with the enhanced temperature tolerance of another parent, producing the 'Juwel' cultivar that exhibits both strong growth vigor and improved adaptability to varying temperature conditions, including better low-temperature tolerance than traditional cultivars.
3Loss of time
If traditional Nerium oleander cultivars are used, then they flower early, but the branches are weak and thin
Solution Approach 1:
The patent applies preliminary action by implementing a multi-generation breeding program before releasing the final cultivar. Through controlled cross-pollination and selective breeding over several generations, the program preliminarily established the genetic foundation for producing branches with sufficient strength and thickness to support early and abundant flowering. The 'Juwel' cultivar results from this preliminary breeding work, combining early flowering capability with structurally sound branches.
Data Source
AI summary
A new and distinct cultivar of Nerium plant named ‘Juwel’, characterized by its broadly upright plant habit; strong and thick branches that resist bending from the weight of the flowers; dense foliage; freely flowering habit; dark pink-colored flowers; and relative tolerance to low temperatures.