VLR001 Shrub Rose Breeding for Disease Resistance and Compact Growth
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Solution Overview
Problem
The horticultural industry lacks a shrub rose plant variety that consistently produces attractive, orange-red blossoms with a compact growth habit and disease resistance, suitable for landscape ornamentation.
Innovation Solution
A new Rosa hybrida shrub rose plant, 'VLR001', was developed through artificial pollination of '20ALFR05' and '27YSP0412', exhibiting orange-red blossoms, upright growth, and resistance to black spot, downy mildew, and rust, distinguished from its parents and other varieties by its unique characteristics and stable propagation through cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional rose varieties are used for landscape ornamentation, then disease resistance is improved, but flower color variety and attractiveness are limited
Solution Approach 1:
The patent applies composite breeding by crossing two distinct rose varieties ('20ALFR05' and '27YSP0412') to create a new variety that combines disease resistance from both parents with a novel orange-red flower color, achieving both reliability and aesthetic value through genetic composition
2Shape
If shrub rose varieties with compact growth habit are selected, then landscape ornamentation value is improved, but blooming continuity may be reduced
Solution Approach 1:
The patent achieves a breakthrough by changing the blooming parameter through selective breeding, enabling the compact shrub rose to bloom continuously from June to October, thus maintaining the desired compact shape while extending the blooming duration to meet landscape ornamentation requirements
3Manufacturing precision
If artificial pollination and selective breeding are performed, then desired characteristics are achieved, but breeding time and complexity increase
Solution Approach 1:
The patent applies preliminary action by conducting artificial pollination and selective breeding in advance to establish a stable, homogeneous variety with desired characteristics before commercial propagation, ensuring characteristic consistency while reducing future breeding time through asexual propagation of the selected seedling
4Stability of the object's composition
If asexual propagation through cuttings is used, then characteristic stability is improved, but propagation success depends on rooting conditions
Solution Approach 1:
The patent applies self-service by selecting a seedling that naturally exhibits strong rooting capability and disease resistance, allowing the plant to propagate successfully through cuttings under standard horticultural conditions without requiring special external interventions, thus maintaining characteristic stability while minimizing propagation risks
Data Source
AI summary
A new and distinct variety of shrub rose plant herein referred to by its cultivar name, ‘VLR001’, is provided that abundantly forms on a continuous basis attractive single to semidouble formed, orange-red colored blossoms. The plant exhibits an upright and compact bush growth habit. The vegetation is vigorous. Tolerance to black spot, downy mildew, and rust is displayed. The plant is well suited for providing attractive ornamentation in the landscape.