Hydrangea Hortmablo Breeding for Large Pink Inflorescences
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Solution Overview
Problem
Current Hydrangea cultivars lack large inflorescences with numerous attractive sterile flowers and good post-production longevity, which are desirable traits for horticultural applications.
Innovation Solution
A new cultivar of Hydrangea macrophylla, 'Hortmablo', was developed through controlled breeding, exhibiting upright to broadly spreading habit, moderately vigorous growth, freely branching stems, large light pink-colored mophead-type inflorescences, and good post-production longevity, distinguishing it from existing cultivars like 'Snowball' and 'Hokomathyst'.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If existing Hydrangea cultivars are used, then production is maintained, but large inflorescences with numerous attractive sterile flowers and good postproduction longevity are not achieved
Solution Approach 1:
The patent applies parameter changes by selecting and breeding Hydrangea plants with specific genetic parameters that result in larger inflorescence size, increased number of sterile flowers, and extended postproduction longevity. The cultivar 'Hortmablo' was developed through controlled cross-pollination and selection processes that optimized these quantitative traits, achieving inflorescences with numerous sterile flowers that maintain quality for extended periods after production.
2Ease of manufacture
If sterile flower color is improved to light pink, then attractiveness is enhanced, but differentiation from existing cultivars like 'Snowball' (white) and 'Hokomathyst' (red purple with green margins) is required
Solution Approach 1:
The patent applies local quality by developing a specific sterile flower color characteristic (light pink) that is locally distinct from existing cultivars. The cultivar 'Hortmablo' was selected for its unique light pink sterile flower sepals, which provide localized color differentiation from the white 'Snowball' and red purple with green margins 'Hokomathyst', enhancing attractiveness while maintaining clear identification as a distinct cultivar.
3Length of stationary object
If leaf size and sterile flower sepal size are increased, then plant vigor and inflorescence quality are improved, but comparison with female parent (darker sepals) and male parent ('Snowball' with globular inflorescences) is necessary
Solution Approach 1:
The patent applies merging by combining desirable traits from both parents through controlled cross-pollination. The cultivar 'Hortmablo' merges the larger leaf size and flattened inflorescence shape from the female parent with the sterile flower color and inflorescence structure from the male parent 'Snowball', creating a composite plant that exhibits both parental characteristics in a unified, improved form.
Data Source
AI summary
A new and distinct cultivar of Hydrangea plant named `Hortmablo`, characterized by its upright to broadly spreading plant habit; moderately vigorous to vigorous growth habit and moderate to rapid growth rate; freely branching habit with strong and thick sturdy stems; relatively large leaves; mophead-type inflorescences with large light pink-colored sterile flowers; and good postproduction longevity.