Hydrangea SMHMTAU Compact Growth with Remontant Flowering
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Solution Overview
Problem
There is a need for new reblooming Hydrangea plants with strong stems and attractive inflorescences that can reproduce true to type and exhibit desirable traits such as compact growth habit, remontant flowering, and color variability with aluminum sulfate treatments.
Innovation Solution
The development of Hydrangea macrophylla 'SMHMTAU' through controlled cross-pollination between Hydrangea macrophylla 'Robert' and 'ES1', resulting in a compact, upright plant with sturdy stems, thick dark green leaves, and mophead-type inflorescences that can be 'blued' with aluminum sulfate, offering improved garden performance and resistance to sun-scalding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Hydrangea plants are bred for remontant flowering and compact growth habit, then flowering performance and space efficiency are improved, but stem strength and inflorescence attractiveness may be compromised
Solution Approach 1:
The patent applies parameter changes by selecting and stabilizing specific genetic parameters through controlled cross-pollination and asexual reproduction. The cultivar 'SMHMTAU' was developed by changing the genetic parameters of Hydrangea plants to achieve a balance between compact growth habit, remontant flowering, and stem strength. The plant exhibits these traits through stable genetic inheritance confirmed by true-to-type reproduction in successive generations.
2Shape
If Hydrangea plants are bred for compact growth habit and intense flower sepal color, then aesthetic appeal and space efficiency are improved, but leaf thickness and overall vigor may be reduced
Solution Approach 1:
The patent applies local quality by differentiating traits across different plant parts while maintaining overall balance. The cultivar 'SMHMTAU' exhibits compact growth habit and intense flower sepal color in the reproductive structures, while maintaining thick leaves and vigorous growth in the vegetative structures. This localized optimization of qualities allows the plant to achieve both aesthetic appeal and structural vigor simultaneously.
3Reliability
If Hydrangea plants are bred for true-to-type reproduction through asexual reproduction, then breeding reliability is improved, but the variety of environmental adaptability may be limited
Solution Approach 1:
The patent applies self-service by utilizing asexual reproduction methods (softwood cuttings) that allow the plant to reproduce true-to-type without requiring controlled pollination or genetic modification. The cultivar 'SMHMTAU' maintains its distinctive traits through stable inheritance in asexual reproduction, providing reliable propagation while the plant's inherent genetic makeup provides adaptability to various environmental conditions through its vigorous growth habit and stress-resistant characteristics.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Hydrangea macrophylla 'SMHMTAU' exhibits stable and true-to-type reproduction, enhanced stem strength, leaf thickness, and intense sterile flower sepal color, providing a compact and vigorous growth habit with remontant flowering and good garden performance under varying environmental conditions.
Implementation Method 1
Mophead-type inflorescences that can easily be 'blued' with aluminum sulfate treatments
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named ‘SMHMTAU’, characterized by its compact, upright, outwardly spreading and mounded plant habit; strong and sturdy stems; remontant flowering habit; thick dark green-colored leaves; mophead-type inflorescences that can easily be “blued” with aluminum sulfate treatments; and good garden performance.