Hydrangea macrophylla HORTMAGRECLO with Strong Stems and Unique Inflorescence
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Solution Overview
Problem
Current Hydrangea cultivars lack strong stems and long-lasting, attractive cut flowers with unique inflorescence shapes and foliage characteristics, limiting their use in landscaping and floral arrangements.
Innovation Solution
The development of the new Hydrangea macrophylla cultivar 'HORTMAGRECLO' with flattened globular inflorescences, serrated green sepals, and strong stems, achieved through controlled breeding and asexual propagation, which reproduces true to type in successive generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional Hydrangea cultivars are used, then they are available for landscaping and cut flowers, but they lack strong stems and long-lasting flowers with unique inflorescence shapes
Solution Approach 1:
The patent applies parameter changes by selectively breeding for specific traits including inflorescence shape (flattened globular), sepal color (green to darker green), and stem strength. The breeding program modified genetic parameters to achieve the desired combination of strong stems and unique floral characteristics that distinguish this cultivar from conventional Hydrangeas
2Duration of action of moving object
If conventional Hydrangea cultivars are used, then they are readily available, but they do not provide long-lasting cut flowers with six-week persistence
Solution Approach 1:
The patent employs preliminary action through controlled breeding programs that pre-select for long-lasting flower traits before commercial propagation. The six-week flower persistence was achieved through deliberate parental selection and controlled crossing, establishing the desired duration characteristic before mass propagation begins
Solution Approach 2:
The patent uses asexual propagation by stem cuttings to create exact copies of the selected parent plant that exhibits six-week flower persistence. This copying method ensures that the long-lasting flower trait is reliably reproduced in successive generations without the variability inherent in sexual reproduction
3Stability of the object's composition
If conventional Hydrangea cultivars are used, then they have simple propagation methods, but they do not reproduce true-to-type characteristics in successive generations
Solution Approach 1:
The patent implements copying through asexual propagation by stem cuttings, which produces genetically identical copies of the parent plant. This method ensures true-to-type reproduction of all characteristics including flattened globular inflorescences, green serrated sepals, and strong stems, maintaining trait stability across generations
Solution Approach 2:
The patent applies feedback by carefully selecting parent plants based on observed traits and using controlled crossing to achieve desired outcomes. The breeding program monitors and selects for specific characteristics, using the results of each generation to inform subsequent breeding decisions and ensure trait stability
Data Source
AI summary
A new cultivar of Hydrangea macrophylla plant named, ‘HORTMAGRECLO’, that is characterized by its inflorescences with a flattened globular shape, its floriferous bloom habit, its sterile flowers with sepals are green in color when mature and become darker green as they age, and its strong stems.