Aster DASDEM Cultivar Uniform Growth and Floret Color
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Solution Overview
Problem
Existing Aster cultivars lack uniform plant growth habit and unique floret colors, and have limited post-production longevity, which affects their commercial viability and aesthetic appeal.
Innovation Solution
The development of the new Aster cultivar 'DASDEM' through controlled breeding, combining upright plant habit, bright yellow-green foliage, and a distinctive inflorescence with 250 violet-colored ray florets and 10-20 green disc florets, achieved through asexual reproduction by vegetative tip cuttings, which retains these characteristics across generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional Aster cultivars are used, then they have basic flowering capability, but they lack uniform plant growth habit and unique floret colors
Solution Approach 1:
The patent applies local quality by selecting for specific traits in specific parts of the plant: uniform upright growth habit in the overall plant structure, bright yellow-green color specifically in the foliage, and unique violet ray florets with green disc florets specifically in the inflorescence. This targeted selection of local characteristics creates a cultivar with consistent, desirable features throughout.
Solution Approach 2:
The patent changes key parameters of the Aster cultivar to achieve uniformity and uniqueness: plant habit is selected for upright uniform growth, foliage color is selected for bright yellow-green, ray floret color is selected for violet, and disc floret color is selected for green. These parameter changes distinguish the new cultivar from conventional varieties.
2Duration of action of stationary object
If conventional Aster cultivars are used, then they have acceptable flowering performance, but they have limited post-production longevity
Solution Approach 1:
The patent applies preliminary action by conducting controlled breeding and multiple generations of selection before commercial propagation. The uniform growth habit and vibrant color characteristics are established through careful parental selection and progeny testing, ensuring that the post-production longevity trait is firmly fixed before the cultivar is released for commercial use.
Solution Approach 2:
The patent employs vegetative tip cuttings for propagation, which are relatively simple and cost-effective propagation materials that can be mass-produced. This method ensures consistent inheritance of the longevity trait while allowing for large-scale commercial production of uniform plants with reliable post-production performance.
Data Source
AI summary
A new distinct cultivar of Aster plant named ‘DASDEM’, characterized by its upright plant form with somewhat outward spreading plant habit; bright yellow-green foliage; decorative, composite-type inflorescence with about 250 violet-blue colored ray florets; and only about 10 to 20 green-colored disc florets per inflorescence (almost 100% filled capitulae).