Hydrangea Saxlimar Cultivar Stem Strength and Color Traits
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Solution Overview
Problem
There is a need for new Hydrangea macrophylla cultivars with strong stems, early flowering, and attractive leaf, stem, and flower coloration that can reproduce true to type and exhibit improved temperature tolerance and flower color when treated with aluminum sulfate.
Innovation Solution
The development of the 'Saxlimar' cultivar, resulting from a cross-pollination between Hydrangea macrophylla 'Horpill' and an unidentified proprietary selection, which exhibits upright and mounded growth, strong stems, larger leaves, and distinct flower color when treated with aluminum sulfate, differing from parent cultivars in stem strength, leaf size, and flower color.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional Hydrangea cultivars are used, then they can be grown and reproduced, but they lack strong stems and exhibit weak temperature tolerance
Solution Approach 1:
The patent applies parameter changes by selecting and breeding plants with specific genetic parameters that result in stronger stems and improved temperature tolerance. The cross-breeding program specifically targeted these parameters, producing 'Saxlimar' which exhibits significantly stronger stem strength and high-temperature tolerance compared to parent cultivars.
2Loss of time
If conventional Hydrangea cultivars are used, then they can flower, but they lack early flowering response and distinct flower color when treated with aluminum sulfate
Solution Approach 1:
The breeding program changed the genetic parameters of the Hydrangea plant to achieve early flowering response and enhanced aluminum sulfate reactivity. The 'Saxlimar' cultivar was selected for its ability to flower earlier than parent cultivars and its distinct response to aluminum sulfate treatment, producing bright blue flowers with fine whitish margins rather than the violet color of the female parent.
3Stability of the object's composition
If conventional Hydrangea cultivars are used, then they can be reproduced, but they do not reproduce true to type across successive generations
Solution Approach 1:
The patent uses asexual reproduction through softwood cuttings to create exact genetic copies of the selected plant. This copying method ensures that the unique combination of traits in 'Saxlimar' (strong stems, early flowering, aluminum sulfate response) is faithfully reproduced in successive generations, maintaining genetic stability while enabling efficient propagation.
4Ease of manufacture
If conventional Hydrangea cultivars are used, then they can grow, but they lack attractive leaf, stem and flower coloration
Solution Approach 1:
The breeding program changed genetic parameters to enhance coloration traits. The 'Saxlimar' cultivar was selected for its attractive green leaves, strong green stems, and distinctive blue flowers with whitish margins when treated with aluminum sulfate. These color parameters were optimized through selective breeding without compromising the plant's overall growth and health.
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
The 'Saxlimar' cultivar demonstrates stable and true-to-type reproduction, enhanced stem strength, larger leaves, and improved high-temperature tolerance, offering a distinct and attractive appearance with blue-colored sterile flowers when treated with aluminum sulfate, outperforming parent cultivars in these characteristics.
Implementation Method 1
Large mophead-type inflorescences that when treated with aluminum sulfate have bright blue-colored sterile flowers with a fine whitish-colored margin
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named ‘Saxlimar’, characterized by its upright and mounded plant habit; moderately vigorous growth habit; strong stems; and large mophead-type inflorescences that when treated with aluminum sulfate have bright blue-colored sterile flowers with a fine whitish-colored margin.