Aster DASMAG Cultivar Breeding for Compact Habit and Flower Longevity
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Solution Overview
Problem
Existing Aster cultivars lack uniform plant growth habit, desirable floret colors, and post-production longevity, which limits their commercial viability in potted plant production.
Innovation Solution
The development of the new Aster cultivar 'DASMAG' through planned breeding, combining traits such as upright and spreading growth habit, dark green foliage, freely flowering racemes with purple ray florets, and stable asexual reproduction via vegetative tip cuttings, resulting in a compact, densely flowered plant with improved longevity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional Aster cultivars are used for potted plant production, then they can be grown and flowered, but they lack uniform plant growth habit and desirable floret colors
Solution Approach 1:
The breeding program systematically altered genetic parameters to achieve uniform plant growth habit and specific floret color characteristics. The new cultivar 'DASMAG' exhibits consistent upright growth habit and uniform purple ray floret coloration (RHS N78B) across plants, demonstrating controlled parameter changes in growth architecture and pigment expression.
2Duration of action of stationary object
If existing Aster cultivars are used, then they can complete their life cycle, but they lack postproduction longevity
Solution Approach 1:
The cultivar was pre-conditioned during growth with specific cultural practices including growth retardant treatment and pinching to establish compact habit and multiple flowering stems before market release. This preliminary preparation ensures prolonged flowering period and extended postproduction longevity when the plants are placed in the market.
3Volume of moving object
If Aster plants are bred for compact growth habit, then they are more suitable for potted production, but they may have fewer side shoots and less flowering
Solution Approach 1:
The plant architecture was segmented into multiple lateral branches through pinching and growth retardant application, creating a multi-stemmed compact form. Each stem segment produces flowers, so the overall flowering quantity is maintained or increased despite reduced individual stem length. The cultivar displays a compact habit with numerous lateral branches bearing inflorescences.
4Shape
If Aster cultivars are selected for desirable ray floret color, then they meet market preferences, but they may have fewer disk florets and altered inflorescence structure
Solution Approach 1:
The inflorescence exhibits local quality differentiation with predominantly purple ray florets (RHS N78B) forming the decorative outer layer, while the central disk florets are reduced in number. This localized specialization prioritizes the aesthetic quality of ray florets for market appeal while accepting reduced disk floret quantity as a trade-off.
Data Source
AI summary
A new and distinct cultivar of Aster plant named ‘DASMAG’, characterized by its upright and somewhat outwardly spreading plant habit, dark green foliage, freely flowering habit, decorative-type inflorescences with purple colored ray florets, and few disk florets (i.e., “double” capitulae.)